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10.67.2 asctime_r ¶

Removed in POSIX.1-2024. POSIX.1-2017 specification:
https://pubs.opengroup.org/onlinepubs/9799919799/functions/asctime_r.html

Gnulib module: extensions

Portability problems fixed by Gnulib:

• This function has an incompatible declaration on some platforms: Solaris 11.4 (when _POSIX_PTHREAD_SEMANTICS is not defined).

Portability problems not fixed by Gnulib:

• This function is missing on some platforms: mingw, MSVC 14.
• This function is removed in POSIX.1-2024. Use the function strftime (or even sprintf) instead. However, strftime is locale dependent.
• This function may overflow its output buffer if its argument specifies a year before 1000 or after 9999. See ctime.
• Although it is tempting to call this function on the value that functions like localtime return, this is typically a mistake. On most current platforms, these functions return a null pointer for timestamps out of range, and this function has undefined behavior in that case.