addseverity(3) Library Functions Manual addseverity(3) addseverity - C (libc, -lc) #include int addseverity(int severity, const char *s); glibc (. feature_test_macros(7)): addseverity(): glibc 2.19: _DEFAULT_SOURCE glibc 2.19 : _SVID_SOURCE (severity), severity fmtmsg(3). , 0-4 ( ( ), HALT, ERROR, WARNING, INFO). s severity. s NULL, severity . . . MM_OK. MM_NOTOK. : , . attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |addseverity() | | MT-Safe | +----------------------------+----------------------------------------------------------+--------------------------+ GNU. glibc 2.1. System V. , SEV_LEVEL. fmtmsg(3) () Dmitry Bolkhovskikh , Yuri Kozlov Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux 6.15 17 2025 . addseverity(3)