s_nextafter.c

glibc 库, 不仅可以学习使用库函数,还可以学习函数的具体实现,是提高功力的好资料

#include <math_ldbl_opt.h>
#include <math/s_nextafter.c>
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
compat_symbol (libm, __nextafter, nextafterl, GLIBC_2_0);
#endif
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
strong_alias (__nextafter, __nexttowardd)
strong_alias (__nextafter, __nexttowardld)
#undef nexttoward
compat_symbol (libm, __nexttowardd, nexttoward, GLIBC_2_1);
compat_symbol (libm, __nexttowardld, nexttowardl, GLIBC_2_1);
#endif