1 files changed, 12 insertions, 0 deletions
diff --git a/src/math/fpclassify.c b/src/math/fpclassify.c
new file mode 100644
index 00000000..da9b24af
--- /dev/null
+++ b/src/math/fpclassify.c
@@ -0,0 +1,12 @@
+#include <math.h>
+                              int __fpclassifyf(float x);
+                             int __fpclassifyd(double x);
+                        int __fpclassifyl(long double x);
+
+#define fpclassify(x)    ((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) : \
+         (sizeof (x) == sizeof (double)) ? __fpclassifyd(x) :  __fpclassifyl(x))
+
+/*
+STDC(199901)
+LINK(m)
+*/