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Add pg_strnlen() a portable implementation of strlen.

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As the OS version is likely going to be more optimized, fall back to
it if available, as detected by configure.
This commit is contained in:
Andres Freund
2017-10-09 15:20:42 -07:00
parent 71c75ddfbb
commit 8a241792f9
7 changed files with 45 additions and 12 deletions
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12
src/port/snprintf.c
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@ -43,6 +43,8 @@
#endif
#include <sys/param.h>
#include "common/string.h"
#ifndef NL_ARGMAX
#define NL_ARGMAX 16
#endif
@ -790,16 +792,6 @@ bad_format:
target->failed = true;
}
static size_t
pg_strnlen(const char *str, size_t maxlen)
{
const char *p = str;
while (maxlen-- > 0 && *p)
p++;
return p - str;
}
static void
fmtstr(char *value, int leftjust, int minlen, int maxwidth,
int pointflag, PrintfTarget *target)