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Guy Harris additions of asctime_r and ctime_r

SCCS-file: asctime.c
SCCS-SID: 7.9
This commit is contained in:
Arthur David Olson
1998-05-25 12:59:36 -04:00
committed by Paul Eggert
parent 74bcedbe23
commit 39d4dda1c4

View File

@ -15,12 +15,13 @@ static char elsieid[] = "%W%";
#include "tzfile.h"
/*
** A la X3J11, with core dump avoidance.
** A la ISO/IEC 9945-1, ANSI/IEEE Std 1003.1, Second Edition, 1996-07-12.
*/
char *
asctime(timeptr)
asctime_r(timeptr, buf)
register const struct tm * timeptr;
char * buf;
{
static const char wday_name[][3] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
@ -29,15 +30,6 @@ register const struct tm * timeptr;
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
/*
** Big enough for something such as
** ??? ???-2147483648 -2147483648:-2147483648:-2147483648 -2147483648\n
** (two three-character abbreviations, five strings denoting integers,
** three explicit spaces, two explicit colons, a newline,
** and a trailing ASCII nul).
*/
static char result[3 * 2 + 5 * INT_STRLEN_MAXIMUM(int) +
3 + 2 + 1 + 1];
register const char * wn;
register const char * mn;
@ -52,10 +44,31 @@ register const struct tm * timeptr;
** "%.3s %.3s%3d %02.2d:%02.2d:%02.2d %d\n"
** Since the .2 in 02.2d is ignored, we drop it.
*/
(void) sprintf(result, "%.3s %.3s%3d %02d:%02d:%02d %d\n",
(void) sprintf(buf, "%.3s %.3s%3d %02d:%02d:%02d %d\n",
wn, mn,
timeptr->tm_mday, timeptr->tm_hour,
timeptr->tm_min, timeptr->tm_sec,
TM_YEAR_BASE + timeptr->tm_year);
return result;
return buf;
}
/*
** A la X3J11, with core dump avoidance.
*/
char *
asctime(timeptr)
register const struct tm * timeptr;
{
/*
** Big enough for something such as
** ??? ???-2147483648 -2147483648:-2147483648:-2147483648 -2147483648\n
** (two three-character abbreviations, five strings denoting integers,
** three explicit spaces, two explicit colons, a newline,
** and a trailing ASCII nul).
*/
static char result[3 * 2 + 5 * INT_STRLEN_MAXIMUM(int) +
3 + 2 + 1 + 1];
return asctime_r(timeptr, result);
}