musl/include/err.h, branch master musl - an implementation of the standard library for Linux-based systems fix redundant _Noreturn def in err.h 2012年09月08日T22:16:33+00:00 Rich Felker dalias@aerifal.cx 2012年09月08日T22:16:33+00:00 695a04fc251c3b9feae5535e0c14e7b8f932b892 not sure why this was missed in the earlier commit. 
not sure why this was missed in the earlier commit.
further use of _Noreturn, for non-plain-C functions 2012年09月07日T03:34:10+00:00 Rich Felker dalias@aerifal.cx 2012年09月07日T03:34:10+00:00 0c05bd3a9c165cf2f0b9d6fa23a1f96532ddcdb3 note that POSIX does not specify these functions as _Noreturn, because POSIX is aligned with C99, not the new C11 standard. when POSIX is eventually updated to C11, it will almost surely give these functions the _Noreturn attribute. for now, the actual _Noreturn keyword is not used anyway when compiling with a c99 compiler, which is what POSIX requires; the GCC __attribute__ is used instead if it's available, however. in a few places, I've added infinite for loops at the end of _Noreturn functions to silence compiler warnings. presumably __buildin_unreachable could achieve the same thing, but it would only work on newer GCCs and would not be portable. the loops should have near-zero code size cost anyway. like the previous _Noreturn commit, this one is based on patches contributed by philomath. 
note that POSIX does not specify these functions as _Noreturn, because
POSIX is aligned with C99, not the new C11 standard. when POSIX is
eventually updated to C11, it will almost surely give these functions
the _Noreturn attribute. for now, the actual _Noreturn keyword is not
used anyway when compiling with a c99 compiler, which is what POSIX
requires; the GCC __attribute__ is used instead if it's available,
however.
in a few places, I've added infinite for loops at the end of _Noreturn
functions to silence compiler warnings. presumably
__buildin_unreachable could achieve the same thing, but it would only
work on newer GCCs and would not be portable. the loops should have
near-zero code size cost anyway.
like the previous _Noreturn commit, this one is based on patches
contributed by philomath.
support the nonstandard err.h interfaces 2011年04月05日T15:16:49+00:00 Rich Felker dalias@aerifal.cx 2011年04月05日T15:16:49+00:00 39e48531eff4e3c3e3e6d1339ff6085f1e2f69bc note that unlike the originals, these do not print the program name/argv[0] because we have not saved it anywhere. this could be changed in __libc_start_main if desired. 
note that unlike the originals, these do not print the program
name/argv[0] because we have not saved it anywhere. this could be
changed in __libc_start_main if desired.

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