crc32.c File Reference

#include "postgres.h"
#include "utils/pg_crc.h"
#include "crc32.h"

Include dependency graph for crc32.c:

Go to the source code of this file.

Macros
#define	TOLOWER(x)   (x)

Functions
unsigned int	ltree_crc32_sz (char *buf, int size)

Macro Definition Documentation

TOLOWER

#define TOLOWER

(

x

)

(x)

Definition at line 16 of file crc32.c.

Referenced by ltree_crc32_sz().

Function Documentation

ltree_crc32_sz()

unsigned int ltree_crc32_sz	(	char *	buf,
		int	size
	)

Definition at line 23 of file crc32.c.

References buf, COMP_TRADITIONAL_CRC32, FIN_TRADITIONAL_CRC32, INIT_TRADITIONAL_CRC32, and TOLOWER.

Referenced by gist_te(), hashing(), lquery_in(), and pushval_asis().

{
    pg_crc32    crc;
    char       *p = buf;

    INIT_TRADITIONAL_CRC32(crc);
    while (size > 0)
    {
        char        c = (char) TOLOWER(*p);

        COMP_TRADITIONAL_CRC32(crc, &c, 1);
        size--;
        p++;
    }
    FIN_TRADITIONAL_CRC32(crc);
    return (unsigned int) crc;
}