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Also emulate error_at_line if not present

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This commit is contained in:
Michael Forney
2013-10-01 05:44:46 +00:00
committed by Jaromir Capik
parent d6a3a3d97e
commit 007c438148
3 changed files with 20 additions and 2 deletions
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18
include/c.h
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@ -123,6 +123,24 @@ static void error(int status, int errnum, const char *format, ...)
if (status != 0)
exit(status);
}
/* Emulate the error_at_line() function from glibc */
__attribute__((__format__(__printf__, 5, 6)))
static void error_at_line(int status, int errnum, const char *filename,
unsigned int linenum, const char *format, ...)
{
va_list argp;
fprintf(stderr, "%s:%s:%u: ", program_invocation_short_name,
filename, linenum);
va_start(argp, format);
vfprintf(stderr, format, argp);
va_end(argp);
if (errnum != 0)
fprintf(stderr, ": error code %d", errnum);
fprintf(stderr, "\n");
if (status != 0)
exit(status);
}
#endif
#define xwarn(...) error(0, errno, __VA_ARGS__)
#define xwarnx(...) error(0, 0, __VA_ARGS__)