#ifndef _MATH_H #include /* Now define the internal interfaces. */ extern int __matherr (struct exception *__exc); # if !defined NOT_IN_libc || defined IS_IN_libm hidden_proto (__finite) hidden_proto (__isinf) hidden_proto (__isnan) hidden_proto (__finitef) hidden_proto (__isinff) hidden_proto (__isnanf) # ifndef __NO_LONG_DOUBLE_MATH hidden_proto (__finitel) hidden_proto (__isinfl) hidden_proto (__isnanl) # endif # endif libm_hidden_proto (__fpclassify) libm_hidden_proto (__fpclassifyf) # ifndef __NO_LONG_DOUBLE_MATH libm_hidden_proto (__fpclassifyl) libm_hidden_proto (__expm1l) # endif #endif