__isnan - Haiku

Symbol: __isnan

src/system/libroot/posix/glibc/math/complex.h

#define __isnan(value) __builtin_isnan(value)

src/system/libroot/posix/math.c

__isnan(double value)

src/system/libroot/stubbed/libroot_stubs.c

void __isnan() {}

src/system/libroot/stubbed/libroot_stubs_legacy.c

void __isnan() {}