diff options
Diffstat (limited to 'lib/strftime.h')
| -rw-r--r-- | lib/strftime.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/strftime.h b/lib/strftime.h index 4327b71d274..7284f67133c 100644 --- a/lib/strftime.h +++ b/lib/strftime.h @@ -24,8 +24,13 @@ extern "C" { /* Just like strftime, but with two more arguments: POSIX requires that strftime use the local timezone information. Use the timezone __TZ instead. Use __NS as the number of - nanoseconds in the %N directive. */ -size_t nstrftime (char *, size_t, char const *, struct tm const *, + nanoseconds in the %N directive. + + On error, set errno and return 0. Otherwise, return the number of + bytes generated (not counting the trailing NUL), preserving errno + if the number is 0. This errno behavior is in draft POSIX 202x + plus some requested changes to POSIX. */ +size_t nstrftime (char *restrict, size_t, char const *, struct tm const *, timezone_t __tz, int __ns); #ifdef __cplusplus |