int.c File Reference

#include "postgres.h"
#include <ctype.h>
#include <limits.h>
#include "catalog/pg_type.h"
#include "common/int.h"
#include "funcapi.h"
#include "libpq/pqformat.h"
#include "utils/array.h"
#include "utils/builtins.h"

Include dependency graph for int.c:

Go to the source code of this file.

Data Structures
struct	generate_series_fctx

Macros
#define	Int2VectorSize(n)   (offsetof(int2vector, values) + (n) * sizeof(int16))

Functions
Datum	int2in (PG_FUNCTION_ARGS)
Datum	int2out (PG_FUNCTION_ARGS)
Datum	int2recv (PG_FUNCTION_ARGS)
Datum	int2send (PG_FUNCTION_ARGS)
int2vector *	buildint2vector (const int16 *int2s, int n)
Datum	int2vectorin (PG_FUNCTION_ARGS)
Datum	int2vectorout (PG_FUNCTION_ARGS)
Datum	int2vectorrecv (PG_FUNCTION_ARGS)
Datum	int2vectorsend (PG_FUNCTION_ARGS)
Datum	int4in (PG_FUNCTION_ARGS)
Datum	int4out (PG_FUNCTION_ARGS)
Datum	int4recv (PG_FUNCTION_ARGS)
Datum	int4send (PG_FUNCTION_ARGS)
Datum	i2toi4 (PG_FUNCTION_ARGS)
Datum	i4toi2 (PG_FUNCTION_ARGS)
Datum	int4_bool (PG_FUNCTION_ARGS)
Datum	bool_int4 (PG_FUNCTION_ARGS)
Datum	int4eq (PG_FUNCTION_ARGS)
Datum	int4ne (PG_FUNCTION_ARGS)
Datum	int4lt (PG_FUNCTION_ARGS)
Datum	int4le (PG_FUNCTION_ARGS)
Datum	int4gt (PG_FUNCTION_ARGS)
Datum	int4ge (PG_FUNCTION_ARGS)
Datum	int2eq (PG_FUNCTION_ARGS)
Datum	int2ne (PG_FUNCTION_ARGS)
Datum	int2lt (PG_FUNCTION_ARGS)
Datum	int2le (PG_FUNCTION_ARGS)
Datum	int2gt (PG_FUNCTION_ARGS)
Datum	int2ge (PG_FUNCTION_ARGS)
Datum	int24eq (PG_FUNCTION_ARGS)
Datum	int24ne (PG_FUNCTION_ARGS)
Datum	int24lt (PG_FUNCTION_ARGS)
Datum	int24le (PG_FUNCTION_ARGS)
Datum	int24gt (PG_FUNCTION_ARGS)
Datum	int24ge (PG_FUNCTION_ARGS)
Datum	int42eq (PG_FUNCTION_ARGS)
Datum	int42ne (PG_FUNCTION_ARGS)
Datum	int42lt (PG_FUNCTION_ARGS)
Datum	int42le (PG_FUNCTION_ARGS)
Datum	int42gt (PG_FUNCTION_ARGS)
Datum	int42ge (PG_FUNCTION_ARGS)
Datum	in_range_int4_int4 (PG_FUNCTION_ARGS)
Datum	in_range_int4_int2 (PG_FUNCTION_ARGS)
Datum	in_range_int4_int8 (PG_FUNCTION_ARGS)
Datum	in_range_int2_int4 (PG_FUNCTION_ARGS)
Datum	in_range_int2_int2 (PG_FUNCTION_ARGS)
Datum	in_range_int2_int8 (PG_FUNCTION_ARGS)
Datum	int4um (PG_FUNCTION_ARGS)
Datum	int4up (PG_FUNCTION_ARGS)
Datum	int4pl (PG_FUNCTION_ARGS)
Datum	int4mi (PG_FUNCTION_ARGS)
Datum	int4mul (PG_FUNCTION_ARGS)
Datum	int4div (PG_FUNCTION_ARGS)
Datum	int4inc (PG_FUNCTION_ARGS)
Datum	int2um (PG_FUNCTION_ARGS)
Datum	int2up (PG_FUNCTION_ARGS)
Datum	int2pl (PG_FUNCTION_ARGS)
Datum	int2mi (PG_FUNCTION_ARGS)
Datum	int2mul (PG_FUNCTION_ARGS)
Datum	int2div (PG_FUNCTION_ARGS)
Datum	int24pl (PG_FUNCTION_ARGS)
Datum	int24mi (PG_FUNCTION_ARGS)
Datum	int24mul (PG_FUNCTION_ARGS)
Datum	int24div (PG_FUNCTION_ARGS)
Datum	int42pl (PG_FUNCTION_ARGS)
Datum	int42mi (PG_FUNCTION_ARGS)
Datum	int42mul (PG_FUNCTION_ARGS)
Datum	int42div (PG_FUNCTION_ARGS)
Datum	int4mod (PG_FUNCTION_ARGS)
Datum	int2mod (PG_FUNCTION_ARGS)
Datum	int4abs (PG_FUNCTION_ARGS)
Datum	int2abs (PG_FUNCTION_ARGS)
Datum	int2larger (PG_FUNCTION_ARGS)
Datum	int2smaller (PG_FUNCTION_ARGS)
Datum	int4larger (PG_FUNCTION_ARGS)
Datum	int4smaller (PG_FUNCTION_ARGS)
Datum	int4and (PG_FUNCTION_ARGS)
Datum	int4or (PG_FUNCTION_ARGS)
Datum	int4xor (PG_FUNCTION_ARGS)
Datum	int4shl (PG_FUNCTION_ARGS)
Datum	int4shr (PG_FUNCTION_ARGS)
Datum	int4not (PG_FUNCTION_ARGS)
Datum	int2and (PG_FUNCTION_ARGS)
Datum	int2or (PG_FUNCTION_ARGS)
Datum	int2xor (PG_FUNCTION_ARGS)
Datum	int2not (PG_FUNCTION_ARGS)
Datum	int2shl (PG_FUNCTION_ARGS)
Datum	int2shr (PG_FUNCTION_ARGS)
Datum	generate_series_int4 (PG_FUNCTION_ARGS)
Datum	generate_series_step_int4 (PG_FUNCTION_ARGS)

Macro Definition Documentation

Int2VectorSize

#define Int2VectorSize

(

n

)

(offsetof(int2vector, values) + (n) * sizeof(int16))

Definition at line 41 of file int.c.

Referenced by buildint2vector(), and int2vectorin().

Function Documentation

bool_int4()

Datum bool_int4

(

PG_FUNCTION_ARGS

)

Definition at line 349 of file int.c.

References PG_GETARG_BOOL, and PG_RETURN_INT32.

{
    if (PG_GETARG_BOOL(0) == false)
        PG_RETURN_INT32(0);
    else
        PG_RETURN_INT32(1);
}

buildint2vector()

int2vector* buildint2vector	(	const int16 *	int2s,
		int	n
	)

Definition at line 110 of file int.c.

References int2vector::dataoffset, int2vector::dim1, int2vector::elemtype, Int2VectorSize, int2vector::lbound1, int2vector::ndim, palloc0(), SET_VARSIZE, and int2vector::values.

Referenced by CreateStatistics(), CreateTrigger(), StorePartitionKey(), and UpdateIndexRelation().

{
    int2vector *result;

    result = (int2vector *) palloc0(Int2VectorSize(n));

    if (n > 0 && int2s)
        memcpy(result->values, int2s, n * sizeof(int16));

    /*
     * Attach standard array header.  For historical reasons, we set the index
     * lower bound to 0 not 1.
     */
    SET_VARSIZE(result, Int2VectorSize(n));
    result->ndim = 1;
    result->dataoffset = 0;     /* never any nulls */
    result->elemtype = INT2OID;
    result->dim1 = n;
    result->lbound1 = 0;

    return result;
}

generate_series_int4()

Datum generate_series_int4

(

PG_FUNCTION_ARGS

)

Definition at line 1353 of file int.c.

References generate_series_step_int4().

{
    return generate_series_step_int4(fcinfo);
}

generate_series_step_int4()

Datum generate_series_step_int4

(

PG_FUNCTION_ARGS

)

Definition at line 1359 of file int.c.

References generate_series_fctx::current, ereport, errcode(), errmsg(), ERROR, generate_series_fctx::finish, Int32GetDatum, MemoryContextSwitchTo(), FuncCallContext::multi_call_memory_ctx, palloc(), pg_add_s32_overflow(), PG_GETARG_INT32, PG_NARGS, SRF_FIRSTCALL_INIT, SRF_IS_FIRSTCALL, SRF_PERCALL_SETUP, SRF_RETURN_DONE, SRF_RETURN_NEXT, generate_series_fctx::step, and FuncCallContext::user_fctx.

Referenced by generate_series_int4().

{
    FuncCallContext *funcctx;
    generate_series_fctx *fctx;
    int32       result;
    MemoryContext oldcontext;

    /* stuff done only on the first call of the function */
    if (SRF_IS_FIRSTCALL())
    {
        int32       start = PG_GETARG_INT32(0);
        int32       finish = PG_GETARG_INT32(1);
        int32       step = 1;

        /* see if we were given an explicit step size */
        if (PG_NARGS() == 3)
            step = PG_GETARG_INT32(2);
        if (step == 0)
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("step size cannot equal zero")));

        /* create a function context for cross-call persistence */
        funcctx = SRF_FIRSTCALL_INIT();

        /*
         * switch to memory context appropriate for multiple function calls
         */
        oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);

        /* allocate memory for user context */
        fctx = (generate_series_fctx *) palloc(sizeof(generate_series_fctx));

        /*
         * Use fctx to keep state from call to call. Seed current with the
         * original start value
         */
        fctx->current = start;
        fctx->finish = finish;
        fctx->step = step;

        funcctx->user_fctx = fctx;
        MemoryContextSwitchTo(oldcontext);
    }

    /* stuff done on every call of the function */
    funcctx = SRF_PERCALL_SETUP();

    /*
     * get the saved state and use current as the result for this iteration
     */
    fctx = funcctx->user_fctx;
    result = fctx->current;

    if ((fctx->step > 0 && fctx->current <= fctx->finish) ||
        (fctx->step < 0 && fctx->current >= fctx->finish))
    {
        /*
         * Increment current in preparation for next iteration. If next-value
         * computation overflows, this is the final result.
         */
        if (pg_add_s32_overflow(fctx->current, fctx->step, &fctx->current))
            fctx->step = 0;

        /* do when there is more left to send */
        SRF_RETURN_NEXT(funcctx, Int32GetDatum(result));
    }
    else
        /* do when there is no more left */
        SRF_RETURN_DONE(funcctx);
}

i2toi4()

Datum i2toi4

(

PG_FUNCTION_ARGS

)

Definition at line 317 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT32.

{
    int16       arg1 = PG_GETARG_INT16(0);

    PG_RETURN_INT32((int32) arg1);
}

i4toi2()

Datum i4toi2

(

PG_FUNCTION_ARGS

)

Definition at line 325 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_RETURN_INT16, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);

    if (unlikely(arg1 < SHRT_MIN) || unlikely(arg1 > SHRT_MAX))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));

    PG_RETURN_INT16((int16) arg1);
}

in_range_int2_int2()

Datum in_range_int2_int2

(

PG_FUNCTION_ARGS

)

Definition at line 716 of file int.c.

References DirectFunctionCall5, in_range_int2_int4(), Int32GetDatum, PG_GETARG_DATUM, and PG_GETARG_INT16.

{
    /* Doesn't seem worth duplicating code for, so just invoke int2_int4 */
    return DirectFunctionCall5(in_range_int2_int4,
                               PG_GETARG_DATUM(0),
                               PG_GETARG_DATUM(1),
                               Int32GetDatum((int32) PG_GETARG_INT16(2)),
                               PG_GETARG_DATUM(3),
                               PG_GETARG_DATUM(4));
}

in_range_int2_int4()

Datum in_range_int2_int4

(

PG_FUNCTION_ARGS

)

Definition at line 681 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_BOOL, PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_BOOL, unlikely, and val.

Referenced by in_range_int2_int2().

{
    /* We must do all the math in int32 */
    int32       val = (int32) PG_GETARG_INT16(0);
    int32       base = (int32) PG_GETARG_INT16(1);
    int32       offset = PG_GETARG_INT32(2);
    bool        sub = PG_GETARG_BOOL(3);
    bool        less = PG_GETARG_BOOL(4);
    int32       sum;

    if (offset < 0)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PRECEDING_FOLLOWING_SIZE),
                 errmsg("invalid preceding or following size in window function")));

    if (sub)
        offset = -offset;       /* cannot overflow */

    if (unlikely(pg_add_s32_overflow(base, offset, &sum)))
    {
        /*
         * If sub is false, the true sum is surely more than val, so correct
         * answer is the same as "less".  If sub is true, the true sum is
         * surely less than val, so the answer is "!less".
         */
        PG_RETURN_BOOL(sub ? !less : less);
    }

    if (less)
        PG_RETURN_BOOL(val <= sum);
    else
        PG_RETURN_BOOL(val >= sum);
}

in_range_int2_int8()

Datum in_range_int2_int8

(

PG_FUNCTION_ARGS

)

Definition at line 728 of file int.c.

References DirectFunctionCall5, in_range_int4_int8(), Int32GetDatum, PG_GETARG_DATUM, and PG_GETARG_INT16.

{
    /* Doesn't seem worth duplicating code for, so just invoke int4_int8 */
    return DirectFunctionCall5(in_range_int4_int8,
                               Int32GetDatum((int32) PG_GETARG_INT16(0)),
                               Int32GetDatum((int32) PG_GETARG_INT16(1)),
                               PG_GETARG_DATUM(2),
                               PG_GETARG_DATUM(3),
                               PG_GETARG_DATUM(4));
}

in_range_int4_int2()

Datum in_range_int4_int2

(

PG_FUNCTION_ARGS

)

Definition at line 634 of file int.c.

References DirectFunctionCall5, in_range_int4_int4(), Int32GetDatum, PG_GETARG_DATUM, and PG_GETARG_INT16.

{
    /* Doesn't seem worth duplicating code for, so just invoke int4_int4 */
    return DirectFunctionCall5(in_range_int4_int4,
                               PG_GETARG_DATUM(0),
                               PG_GETARG_DATUM(1),
                               Int32GetDatum((int32) PG_GETARG_INT16(2)),
                               PG_GETARG_DATUM(3),
                               PG_GETARG_DATUM(4));
}

in_range_int4_int4()

Datum in_range_int4_int4

(

PG_FUNCTION_ARGS

)

Definition at line 600 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_BOOL, PG_GETARG_INT32, PG_RETURN_BOOL, unlikely, and val.

Referenced by in_range_int4_int2().

{
    int32       val = PG_GETARG_INT32(0);
    int32       base = PG_GETARG_INT32(1);
    int32       offset = PG_GETARG_INT32(2);
    bool        sub = PG_GETARG_BOOL(3);
    bool        less = PG_GETARG_BOOL(4);
    int32       sum;

    if (offset < 0)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PRECEDING_FOLLOWING_SIZE),
                 errmsg("invalid preceding or following size in window function")));

    if (sub)
        offset = -offset;       /* cannot overflow */

    if (unlikely(pg_add_s32_overflow(base, offset, &sum)))
    {
        /*
         * If sub is false, the true sum is surely more than val, so correct
         * answer is the same as "less".  If sub is true, the true sum is
         * surely less than val, so the answer is "!less".
         */
        PG_RETURN_BOOL(sub ? !less : less);
    }

    if (less)
        PG_RETURN_BOOL(val <= sum);
    else
        PG_RETURN_BOOL(val >= sum);
}

in_range_int4_int8()

Datum in_range_int4_int8

(

PG_FUNCTION_ARGS

)

Definition at line 646 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s64_overflow(), PG_GETARG_BOOL, PG_GETARG_INT32, PG_GETARG_INT64, PG_RETURN_BOOL, unlikely, and val.

Referenced by in_range_int2_int8().

{
    /* We must do all the math in int64 */
    int64       val = (int64) PG_GETARG_INT32(0);
    int64       base = (int64) PG_GETARG_INT32(1);
    int64       offset = PG_GETARG_INT64(2);
    bool        sub = PG_GETARG_BOOL(3);
    bool        less = PG_GETARG_BOOL(4);
    int64       sum;

    if (offset < 0)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PRECEDING_FOLLOWING_SIZE),
                 errmsg("invalid preceding or following size in window function")));

    if (sub)
        offset = -offset;       /* cannot overflow */

    if (unlikely(pg_add_s64_overflow(base, offset, &sum)))
    {
        /*
         * If sub is false, the true sum is surely more than val, so correct
         * answer is the same as "less".  If sub is true, the true sum is
         * surely less than val, so the answer is "!less".
         */
        PG_RETURN_BOOL(sub ? !less : less);
    }

    if (less)
        PG_RETURN_BOOL(val <= sum);
    else
        PG_RETURN_BOOL(val >= sum);
}

int24div()

Datum int24div

(

PG_FUNCTION_ARGS

)

Definition at line 1007 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_INT32, PG_RETURN_NULL, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    if (unlikely(arg2 == 0))
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /* No overflow is possible */
    PG_RETURN_INT32((int32) arg1 / arg2);
}

int24eq()

Datum int24eq

(

PG_FUNCTION_ARGS

)

Definition at line 481 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 == arg2);
}

int24ge()

Datum int24ge

(

PG_FUNCTION_ARGS

)

Definition at line 526 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 >= arg2);
}

int24gt()

Datum int24gt

(

PG_FUNCTION_ARGS

)

Definition at line 517 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 > arg2);
}

int24le()

Datum int24le

(

PG_FUNCTION_ARGS

)

Definition at line 508 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 <= arg2);
}

int24lt()

Datum int24lt

(

PG_FUNCTION_ARGS

)

Definition at line 499 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 < arg2);
}

int24mi()

Datum int24mi

(

PG_FUNCTION_ARGS

)

Definition at line 979 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_INT32, pg_sub_s32_overflow(), and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_sub_s32_overflow((int32) arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int24mul()

Datum int24mul

(

PG_FUNCTION_ARGS

)

Definition at line 993 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, pg_mul_s32_overflow(), PG_RETURN_INT32, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_mul_s32_overflow((int32) arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int24ne()

Datum int24ne

(

PG_FUNCTION_ARGS

)

Definition at line 490 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 != arg2);
}

int24pl()

Datum int24pl

(

PG_FUNCTION_ARGS

)

Definition at line 965 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_INT32, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_add_s32_overflow((int32) arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int2abs()

Datum int2abs

(

PG_FUNCTION_ARGS

)

Definition at line 1182 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_INT16_MIN, PG_RETURN_INT16, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       result;

    if (unlikely(arg1 == PG_INT16_MIN))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));
    result = (arg1 < 0) ? -arg1 : arg1;
    PG_RETURN_INT16(result);
}

int2and()

Datum int2and

(

PG_FUNCTION_ARGS

)

Definition at line 1296 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_INT16(arg1 & arg2);
}

int2div()

Datum int2div

(

PG_FUNCTION_ARGS

)

Definition at line 926 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_INT16_MIN, PG_RETURN_INT16, PG_RETURN_NULL, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int16       result;

    if (arg2 == 0)
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /*
     * SHRT_MIN / -1 is problematic, since the result can't be represented on
     * a two's-complement machine.  Some machines produce SHRT_MIN, some
     * produce zero, some throw an exception.  We can dodge the problem by
     * recognizing that division by -1 is the same as negation.
     */
    if (arg2 == -1)
    {
        if (unlikely(arg1 == PG_INT16_MIN))
            ereport(ERROR,
                    (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                     errmsg("smallint out of range")));
        result = -arg1;
        PG_RETURN_INT16(result);
    }

    /* No overflow is possible */

    result = arg1 / arg2;

    PG_RETURN_INT16(result);
}

int2eq()

Datum int2eq

(

PG_FUNCTION_ARGS

)

Definition at line 427 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 == arg2);
}

int2ge()

Datum int2ge

(

PG_FUNCTION_ARGS

)

Definition at line 472 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 >= arg2);
}

int2gt()

Datum int2gt

(

PG_FUNCTION_ARGS

)

Definition at line 463 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 > arg2);
}

int2in()

Datum int2in

(

PG_FUNCTION_ARGS

)

Definition at line 59 of file int.c.

References pg_atoi(), PG_GETARG_CSTRING, and PG_RETURN_INT16.

{
    char       *num = PG_GETARG_CSTRING(0);

    PG_RETURN_INT16(pg_atoi(num, sizeof(int16), '\0'));
}

int2larger()

Datum int2larger

(

PG_FUNCTION_ARGS

)

Definition at line 1196 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_INT16((arg1 > arg2) ? arg1 : arg2);
}

int2le()

Datum int2le

(

PG_FUNCTION_ARGS

)

Definition at line 454 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 <= arg2);
}

int2lt()

Datum int2lt

(

PG_FUNCTION_ARGS

)

Definition at line 445 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 < arg2);
}

int2mi()

Datum int2mi

(

PG_FUNCTION_ARGS

)

Definition at line 897 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_RETURN_INT16, pg_sub_s16_overflow(), and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int16       result;

    if (unlikely(pg_sub_s16_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));
    PG_RETURN_INT16(result);
}

int2mod()

Datum int2mod

(

PG_FUNCTION_ARGS

)

Definition at line 1135 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_RETURN_INT16, PG_RETURN_NULL, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    if (unlikely(arg2 == 0))
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /*
     * Some machines throw a floating-point exception for INT_MIN % -1, which
     * is a bit silly since the correct answer is perfectly well-defined,
     * namely zero.  (It's not clear this ever happens when dealing with
     * int16, but we might as well have the test for safety.)
     */
    if (arg2 == -1)
        PG_RETURN_INT16(0);

    /* No overflow is possible */

    PG_RETURN_INT16(arg1 % arg2);
}

int2mul()

Datum int2mul

(

PG_FUNCTION_ARGS

)

Definition at line 911 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, pg_mul_s16_overflow(), PG_RETURN_INT16, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int16       result;

    if (unlikely(pg_mul_s16_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));

    PG_RETURN_INT16(result);
}

int2ne()

Datum int2ne

(

PG_FUNCTION_ARGS

)

Definition at line 436 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_BOOL.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 != arg2);
}

int2not()

Datum int2not

(

PG_FUNCTION_ARGS

)

Definition at line 1323 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);

    PG_RETURN_INT16(~arg1);
}

int2or()

Datum int2or

(

PG_FUNCTION_ARGS

)

Definition at line 1305 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_INT16(arg1 | arg2);
}

int2out()

Datum int2out

(

PG_FUNCTION_ARGS

)

Definition at line 70 of file int.c.

References palloc(), PG_GETARG_INT16, pg_itoa(), and PG_RETURN_CSTRING.

{
    int16       arg1 = PG_GETARG_INT16(0);
    char       *result = (char *) palloc(7);    /* sign, 5 digits, '\0' */

    pg_itoa(arg1, result);
    PG_RETURN_CSTRING(result);
}

int2pl()

Datum int2pl

(

PG_FUNCTION_ARGS

)

Definition at line 883 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s16_overflow(), PG_GETARG_INT16, PG_RETURN_INT16, and unlikely.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int16       result;

    if (unlikely(pg_add_s16_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));
    PG_RETURN_INT16(result);
}

int2recv()

Datum int2recv

(

PG_FUNCTION_ARGS

)

Definition at line 83 of file int.c.

References buf, PG_GETARG_POINTER, PG_RETURN_INT16, and pq_getmsgint().

{
    StringInfo  buf = (StringInfo) PG_GETARG_POINTER(0);

    PG_RETURN_INT16((int16) pq_getmsgint(buf, sizeof(int16)));
}

int2send()

Datum int2send

(

PG_FUNCTION_ARGS

)

Definition at line 94 of file int.c.

References buf, PG_GETARG_INT16, PG_RETURN_BYTEA_P, pq_begintypsend(), pq_endtypsend(), and pq_sendint16().

{
    int16       arg1 = PG_GETARG_INT16(0);
    StringInfoData buf;

    pq_begintypsend(&buf);
    pq_sendint16(&buf, arg1);
    PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}

int2shl()

Datum int2shl

(

PG_FUNCTION_ARGS

)

Definition at line 1332 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT16(arg1 << arg2);
}

int2shr()

Datum int2shr

(

PG_FUNCTION_ARGS

)

Definition at line 1341 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT16(arg1 >> arg2);
}

int2smaller()

Datum int2smaller

(

PG_FUNCTION_ARGS

)

Definition at line 1205 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_INT16((arg1 < arg2) ? arg1 : arg2);
}

int2um()

Datum int2um

(

PG_FUNCTION_ARGS

)

Definition at line 863 of file int.c.

References arg, ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_INT16_MIN, PG_RETURN_INT16, and unlikely.

{
    int16       arg = PG_GETARG_INT16(0);

    if (unlikely(arg == PG_INT16_MIN))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("smallint out of range")));
    PG_RETURN_INT16(-arg);
}

int2up()

Datum int2up

(

PG_FUNCTION_ARGS

)

Definition at line 875 of file int.c.

References arg, PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg = PG_GETARG_INT16(0);

    PG_RETURN_INT16(arg);
}

int2vectorin()

Datum int2vectorin

(

PG_FUNCTION_ARGS

)

Definition at line 137 of file int.c.

References int2vector::dataoffset, int2vector::dim1, int2vector::elemtype, ereport, errcode(), errmsg(), ERROR, FUNC_MAX_ARGS, Int2VectorSize, int2vector::lbound1, int2vector::ndim, palloc0(), pg_atoi(), PG_GETARG_CSTRING, PG_RETURN_POINTER, SET_VARSIZE, and int2vector::values.

{
    char       *intString = PG_GETARG_CSTRING(0);
    int2vector *result;
    int         n;

    result = (int2vector *) palloc0(Int2VectorSize(FUNC_MAX_ARGS));

    for (n = 0; *intString && n < FUNC_MAX_ARGS; n++)
    {
        while (*intString && isspace((unsigned char) *intString))
            intString++;
        if (*intString == '\0')
            break;
        result->values[n] = pg_atoi(intString, sizeof(int16), ' ');
        while (*intString && !isspace((unsigned char) *intString))
            intString++;
    }
    while (*intString && isspace((unsigned char) *intString))
        intString++;
    if (*intString)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("int2vector has too many elements")));

    SET_VARSIZE(result, Int2VectorSize(n));
    result->ndim = 1;
    result->dataoffset = 0;     /* never any nulls */
    result->elemtype = INT2OID;
    result->dim1 = n;
    result->lbound1 = 0;

    PG_RETURN_POINTER(result);
}

int2vectorout()

Datum int2vectorout

(

PG_FUNCTION_ARGS

)

Definition at line 176 of file int.c.

References int2vector::dim1, palloc(), PG_GETARG_POINTER, pg_itoa(), PG_RETURN_CSTRING, and int2vector::values.

{
    int2vector *int2Array = (int2vector *) PG_GETARG_POINTER(0);
    int         num,
                nnums = int2Array->dim1;
    char       *rp;
    char       *result;

    /* assumes sign, 5 digits, ' ' */
    rp = result = (char *) palloc(nnums * 7 + 1);
    for (num = 0; num < nnums; num++)
    {
        if (num != 0)
            *rp++ = ' ';
        pg_itoa(int2Array->values[num], rp);
        while (*++rp != '\0')
            ;
    }
    *rp = '\0';
    PG_RETURN_CSTRING(result);
}

int2vectorrecv()

Datum int2vectorrecv

(

PG_FUNCTION_ARGS

)

Definition at line 202 of file int.c.

References FunctionCallInfoData::arg, FunctionCallInfoData::argnull, ARR_DIMS, ARR_ELEMTYPE, ARR_HASNULL, ARR_LBOUND, ARR_NDIM, array_recv(), Assert, buf, DatumGetPointer, ereport, errcode(), errmsg(), ERROR, FunctionCallInfoData::flinfo, FUNC_MAX_ARGS, InitFunctionCallInfoData, Int32GetDatum, InvalidOid, FunctionCallInfoData::isnull, ObjectIdGetDatum, PG_GETARG_POINTER, PG_RETURN_POINTER, and PointerGetDatum.

{
    StringInfo  buf = (StringInfo) PG_GETARG_POINTER(0);
    FunctionCallInfoData locfcinfo;
    int2vector *result;

    /*
     * Normally one would call array_recv() using DirectFunctionCall3, but
     * that does not work since array_recv wants to cache some data using
     * fcinfo->flinfo->fn_extra.  So we need to pass it our own flinfo
     * parameter.
     */
    InitFunctionCallInfoData(locfcinfo, fcinfo->flinfo, 3,
                             InvalidOid, NULL, NULL);

    locfcinfo.arg[0] = PointerGetDatum(buf);
    locfcinfo.arg[1] = ObjectIdGetDatum(INT2OID);
    locfcinfo.arg[2] = Int32GetDatum(-1);
    locfcinfo.argnull[0] = false;
    locfcinfo.argnull[1] = false;
    locfcinfo.argnull[2] = false;

    result = (int2vector *) DatumGetPointer(array_recv(&locfcinfo));

    Assert(!locfcinfo.isnull);

    /* sanity checks: int2vector must be 1-D, 0-based, no nulls */
    if (ARR_NDIM(result) != 1 ||
        ARR_HASNULL(result) ||
        ARR_ELEMTYPE(result) != INT2OID ||
        ARR_LBOUND(result)[0] != 0)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
                 errmsg("invalid int2vector data")));

    /* check length for consistency with int2vectorin() */
    if (ARR_DIMS(result)[0] > FUNC_MAX_ARGS)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("oidvector has too many elements")));

    PG_RETURN_POINTER(result);
}

int2vectorsend()

Datum int2vectorsend

(

PG_FUNCTION_ARGS

)

Definition at line 250 of file int.c.

References array_send().

{
    return array_send(fcinfo);
}

int2xor()

Datum int2xor

(

PG_FUNCTION_ARGS

)

Definition at line 1314 of file int.c.

References PG_GETARG_INT16, and PG_RETURN_INT16.

{
    int16       arg1 = PG_GETARG_INT16(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_INT16(arg1 ^ arg2);
}

int42div()

Datum int42div

(

PG_FUNCTION_ARGS

)

Definition at line 1068 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, PG_INT32_MIN, PG_RETURN_INT32, PG_RETURN_NULL, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int32       result;

    if (unlikely(arg2 == 0))
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /*
     * INT_MIN / -1 is problematic, since the result can't be represented on a
     * two's-complement machine.  Some machines produce INT_MIN, some produce
     * zero, some throw an exception.  We can dodge the problem by recognizing
     * that division by -1 is the same as negation.
     */
    if (arg2 == -1)
    {
        if (unlikely(arg1 == PG_INT32_MIN))
            ereport(ERROR,
                    (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                     errmsg("integer out of range")));
        result = -arg1;
        PG_RETURN_INT32(result);
    }

    /* No overflow is possible */

    result = arg1 / arg2;

    PG_RETURN_INT32(result);
}

int42eq()

Datum int42eq

(

PG_FUNCTION_ARGS

)

Definition at line 535 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 == arg2);
}

int42ge()

Datum int42ge

(

PG_FUNCTION_ARGS

)

Definition at line 580 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 >= arg2);
}

int42gt()

Datum int42gt

(

PG_FUNCTION_ARGS

)

Definition at line 571 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 > arg2);
}

int42le()

Datum int42le

(

PG_FUNCTION_ARGS

)

Definition at line 562 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 <= arg2);
}

int42lt()

Datum int42lt

(

PG_FUNCTION_ARGS

)

Definition at line 553 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 < arg2);
}

int42mi()

Datum int42mi

(

PG_FUNCTION_ARGS

)

Definition at line 1040 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_INT32, pg_sub_s32_overflow(), and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int32       result;

    if (unlikely(pg_sub_s32_overflow(arg1, (int32) arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int42mul()

Datum int42mul

(

PG_FUNCTION_ARGS

)

Definition at line 1054 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT16, PG_GETARG_INT32, pg_mul_s32_overflow(), PG_RETURN_INT32, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int32       result;

    if (unlikely(pg_mul_s32_overflow(arg1, (int32) arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int42ne()

Datum int42ne

(

PG_FUNCTION_ARGS

)

Definition at line 544 of file int.c.

References PG_GETARG_INT16, PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);

    PG_RETURN_BOOL(arg1 != arg2);
}

int42pl()

Datum int42pl

(

PG_FUNCTION_ARGS

)

Definition at line 1026 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_INT16, PG_GETARG_INT32, PG_RETURN_INT32, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int16       arg2 = PG_GETARG_INT16(1);
    int32       result;

    if (unlikely(pg_add_s32_overflow(arg1, (int32) arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int4_bool()

Datum int4_bool

(

PG_FUNCTION_ARGS

)

Definition at line 339 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    if (PG_GETARG_INT32(0) == 0)
        PG_RETURN_BOOL(false);
    else
        PG_RETURN_BOOL(true);
}

int4abs()

Datum int4abs

(

PG_FUNCTION_ARGS

)

Definition at line 1168 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_INT32_MIN, PG_RETURN_INT32, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       result;

    if (unlikely(arg1 == PG_INT32_MIN))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    result = (arg1 < 0) ? -arg1 : arg1;
    PG_RETURN_INT32(result);
}

int4and()

Datum int4and

(

PG_FUNCTION_ARGS

)

Definition at line 1243 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32(arg1 & arg2);
}

int4div()

Datum int4div

(

PG_FUNCTION_ARGS

)

Definition at line 810 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_INT32_MIN, PG_RETURN_INT32, PG_RETURN_NULL, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (arg2 == 0)
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /*
     * INT_MIN / -1 is problematic, since the result can't be represented on a
     * two's-complement machine.  Some machines produce INT_MIN, some produce
     * zero, some throw an exception.  We can dodge the problem by recognizing
     * that division by -1 is the same as negation.
     */
    if (arg2 == -1)
    {
        if (unlikely(arg1 == PG_INT32_MIN))
            ereport(ERROR,
                    (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                     errmsg("integer out of range")));
        result = -arg1;
        PG_RETURN_INT32(result);
    }

    /* No overflow is possible */

    result = arg1 / arg2;

    PG_RETURN_INT32(result);
}

int4eq()

Datum int4eq

(

PG_FUNCTION_ARGS

)

Definition at line 373 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 == arg2);
}

int4ge()

Datum int4ge

(

PG_FUNCTION_ARGS

)

Definition at line 418 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 >= arg2);
}

int4gt()

Datum int4gt

(

PG_FUNCTION_ARGS

)

Definition at line 409 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 > arg2);
}

int4in()

Datum int4in

(

PG_FUNCTION_ARGS

)

Definition at line 264 of file int.c.

References pg_atoi(), PG_GETARG_CSTRING, and PG_RETURN_INT32.

Referenced by inet_client_port(), inet_server_port(), and pg_stat_get_backend_client_port().

{
    char       *num = PG_GETARG_CSTRING(0);

    PG_RETURN_INT32(pg_atoi(num, sizeof(int32), '\0'));
}

int4inc()

Datum int4inc

(

PG_FUNCTION_ARGS

)

Definition at line 849 of file int.c.

References arg, ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_INT32, PG_RETURN_INT32, and unlikely.

{
    int32       arg = PG_GETARG_INT32(0);
    int32       result;

    if (unlikely(pg_add_s32_overflow(arg, 1, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));

    PG_RETURN_INT32(result);
}

int4larger()

Datum int4larger

(

PG_FUNCTION_ARGS

)

Definition at line 1214 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32((arg1 > arg2) ? arg1 : arg2);
}

int4le()

Datum int4le

(

PG_FUNCTION_ARGS

)

Definition at line 400 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 <= arg2);
}

int4lt()

Datum int4lt

(

PG_FUNCTION_ARGS

)

Definition at line 391 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 < arg2);
}

int4mi()

Datum int4mi

(

PG_FUNCTION_ARGS

)

Definition at line 782 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_RETURN_INT32, pg_sub_s32_overflow(), and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_sub_s32_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int4mod()

Datum int4mod

(

PG_FUNCTION_ARGS

)

Definition at line 1107 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_RETURN_INT32, PG_RETURN_NULL, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    if (unlikely(arg2 == 0))
    {
        ereport(ERROR,
                (errcode(ERRCODE_DIVISION_BY_ZERO),
                 errmsg("division by zero")));
        /* ensure compiler realizes we mustn't reach the division (gcc bug) */
        PG_RETURN_NULL();
    }

    /*
     * Some machines throw a floating-point exception for INT_MIN % -1, which
     * is a bit silly since the correct answer is perfectly well-defined,
     * namely zero.
     */
    if (arg2 == -1)
        PG_RETURN_INT32(0);

    /* No overflow is possible */

    PG_RETURN_INT32(arg1 % arg2);
}

int4mul()

Datum int4mul

(

PG_FUNCTION_ARGS

)

Definition at line 796 of file int.c.

References ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, pg_mul_s32_overflow(), PG_RETURN_INT32, and unlikely.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_mul_s32_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int4ne()

Datum int4ne

(

PG_FUNCTION_ARGS

)

Definition at line 382 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_BOOL.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_BOOL(arg1 != arg2);
}

int4not()

Datum int4not

(

PG_FUNCTION_ARGS

)

Definition at line 1288 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);

    PG_RETURN_INT32(~arg1);
}

int4or()

Datum int4or

(

PG_FUNCTION_ARGS

)

Definition at line 1252 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32(arg1 | arg2);
}

int4out()

Datum int4out

(

PG_FUNCTION_ARGS

)

Definition at line 275 of file int.c.

References palloc(), PG_GETARG_INT32, pg_ltoa(), and PG_RETURN_CSTRING.

Referenced by int4_to_char().

{
    int32       arg1 = PG_GETARG_INT32(0);
    char       *result = (char *) palloc(12);   /* sign, 10 digits, '\0' */

    pg_ltoa(arg1, result);
    PG_RETURN_CSTRING(result);
}

int4pl()

Datum int4pl

(

PG_FUNCTION_ARGS

)

Definition at line 768 of file int.c.

References ereport, errcode(), errmsg(), ERROR, pg_add_s32_overflow(), PG_GETARG_INT32, PG_RETURN_INT32, and unlikely.

Referenced by int4range_canonical().

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);
    int32       result;

    if (unlikely(pg_add_s32_overflow(arg1, arg2, &result)))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(result);
}

int4recv()

Datum int4recv

(

PG_FUNCTION_ARGS

)

Definition at line 288 of file int.c.

References buf, PG_GETARG_POINTER, PG_RETURN_INT32, and pq_getmsgint().

{
    StringInfo  buf = (StringInfo) PG_GETARG_POINTER(0);

    PG_RETURN_INT32((int32) pq_getmsgint(buf, sizeof(int32)));
}

int4send()

Datum int4send

(

PG_FUNCTION_ARGS

)

Definition at line 299 of file int.c.

References buf, PG_GETARG_INT32, PG_RETURN_BYTEA_P, pq_begintypsend(), pq_endtypsend(), and pq_sendint32().

{
    int32       arg1 = PG_GETARG_INT32(0);
    StringInfoData buf;

    pq_begintypsend(&buf);
    pq_sendint32(&buf, arg1);
    PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}

int4shl()

Datum int4shl

(

PG_FUNCTION_ARGS

)

Definition at line 1270 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32(arg1 << arg2);
}

int4shr()

Datum int4shr

(

PG_FUNCTION_ARGS

)

Definition at line 1279 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32(arg1 >> arg2);
}

int4smaller()

Datum int4smaller

(

PG_FUNCTION_ARGS

)

Definition at line 1223 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32((arg1 < arg2) ? arg1 : arg2);
}

int4um()

Datum int4um

(

PG_FUNCTION_ARGS

)

Definition at line 748 of file int.c.

References arg, ereport, errcode(), errmsg(), ERROR, PG_GETARG_INT32, PG_INT32_MIN, PG_RETURN_INT32, and unlikely.

{
    int32       arg = PG_GETARG_INT32(0);

    if (unlikely(arg == PG_INT32_MIN))
        ereport(ERROR,
                (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
                 errmsg("integer out of range")));
    PG_RETURN_INT32(-arg);
}

int4up()

Datum int4up

(

PG_FUNCTION_ARGS

)

Definition at line 760 of file int.c.

References arg, PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg = PG_GETARG_INT32(0);

    PG_RETURN_INT32(arg);
}

int4xor()

Datum int4xor

(

PG_FUNCTION_ARGS

)

Definition at line 1261 of file int.c.

References PG_GETARG_INT32, and PG_RETURN_INT32.

{
    int32       arg1 = PG_GETARG_INT32(0);
    int32       arg2 = PG_GETARG_INT32(1);

    PG_RETURN_INT32(arg1 ^ arg2);
}