remove unused prototypes for frexp() and ldexp()

diff --git a/lib/sfio/sfhdr.h b/lib/sfio/sfhdr.h
index 23e10ecabfa50377df4cb361e75a1d8413730ef5..72655de5749f53c04b2a00e510d188e56ebd3892 100644 (file)
--- a/lib/sfio/sfhdr.h
+++ b/lib/sfio/sfhdr.h
@@ -663,14 +663,6 @@ extern "C" {
     extern int errno;
 #endif
 
-/* for portable encoding of double values */
-#if !__STDC__
-#ifndef _WIN32
-    extern double frexp(double, int *);
-    extern double ldexp(double, int);
-#endif
-#endif
-
 #ifdef _WIN32
 #undef SF_ERROR
 #include <io.h>