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cremno
c47cc0c3bb
gettimeofday() is an obsolescent POSIX function which may be removed in a future version. POSIX recommends using clock_gettime() (also POSIX) instead, but it isn't available on OS X or Windows (at least with MSVC and older MinGW versions). Whereas timespec_get() is part of ISO C11 and mruby uses some small other C11 features too. It isn't universally available yet either, but it might be in the future. And Visual C++ 2015 implements it! Since mruby strives for ISO C and not POSIX compatibility, I think it's a reasonable choice. TIME_UTC is used instead of __STDC_VERSION__, because if TIME_UTC is defined, then most likely timespec_get() is too. This isn't true in case of __STDC_VERSION__ (see MSVC).