Lines Matching refs:isnanl

1 # isnanl.m4 serial 17
55 dnl Prerequisites of replacement isnanl definition. It does not need -lm.
62 dnl Test whether isnanl() can be used without libm.
72              # undef isnanl
73              # define isnanl(x) __builtin_isnanl ((long double)(x))
75              # undef isnanl
76              # define isnanl(x) isnan ((long double)(x))
79            [[return isnanl (x);]])],
85 dnl Test whether isnanl() can be used with libm.
97              # undef isnanl
98              # define isnanl(x) __builtin_isnanl ((long double)(x))
100              # undef isnanl
101              # define isnanl(x) isnan ((long double)(x))
104            [[return isnanl (x);]])],
111 dnl Test whether isnanl() recognizes all numbers which are neither finite nor
122   AC_CACHE_CHECK([whether isnanl works], [gl_cv_func_isnanl_works],
130 # undef isnanl
131 # define isnanl(x) __builtin_isnanl ((long double)(x))
133 # undef isnanl
134 # define isnanl(x) isnan ((long double)(x))
155   if (!isnanl (NaNl ()))
162     /* The isnanl function should be immune against changes in the sign bit and
170     if (!isnanl (m.value))
190     if (!isnanl (x.value))
197     if (!isnanl (x.value))
200   /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
210     if (!isnanl (x.value))
216     if (!isnanl (x.value))
222     if (!isnanl (x.value))
228     if (!isnanl (x.value))
234     if (!isnanl (x.value))