isnand() function: test for NaN.
Files:
-lib/isnand.h
lib/isnand.c
lib/isnan.c
lib/float+.h
m4/isnand.m4
Depends-on:
+math
fpieee
+memcmp
configure.ac:
gl_FUNC_ISNAND
+m4_ifdef([gl_ISNAN], [
+ AC_REQUIRE([gl_ISNAN])
+])
+if test $HAVE_ISNAND = 0 || test $REPLACE_ISNAN = 1; then
+ AC_LIBOBJ([isnand])
+ gl_PREREQ_ISNAND
+fi
+gl_MATH_MODULE_INDICATOR([isnand])
Makefile.am:
Include:
-#include "isnand.h"
+<math.h>
Link:
$(ISNAND_LIBM)