string.c

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/*-------------------------------------------------------------------------
 *
 * string.c
 *      string handling helpers
 *
 *
 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *    src/common/string.c
 *
 *-------------------------------------------------------------------------
 */


#ifndef FRONTEND
#include "postgres.h"
#else
#include "postgres_fe.h"
#endif

#include "common/string.h"


/*
 * Returns whether the string `str' has the postfix `end'.
 */
bool
pg_str_endswith(const char *str, const char *end)
{
    size_t      slen = strlen(str);
    size_t      elen = strlen(end);

    /* can't be a postfix if longer */
    if (elen > slen)
        return false;

    /* compare the end of the strings */
    str += slen - elen;
    return strcmp(str, end) == 0;
}