Author: theraven
Date: Mon Jul 29 08:32:13 2013
New Revision: 253764
URL: http://svnweb.freebsd.org/changeset/base/253764
Log:
Reenable the isnan(double) / isinf(double) declarations when targeting C89 +
SUSv2 mode.
Modified:
head/lib/msun/src/math.h
Modified: head/lib/msun/src/math.h
==============================================================================
--- head/lib/msun/src/math.h Mon Jul 29 08:08:43 2013 (r253763)
+++ head/lib/msun/src/math.h Mon Jul 29 08:32:13 2013 (r253764)
@@ -209,6 +209,21 @@ __inline_isnanl(__const long double __x)
return (__x != __x);
}
+/*
+ * Version 2 of the Single UNIX Specification (UNIX98) defined isnan() and
+ * isinf() as functions taking double. C99, and the subsequent POSIX revisions
+ * (SUSv3, POSIX.1-2001, define it as a macro that accepts any real floating
+ * point type. If we are targeting SUSv2 and C99 or C11 (or C++11) then we
+ * expose the newer definition, assuming that the language spec takes
+ * precedence over the operating system interface spec.
+ */
+#if __XSI_VISIBLE > 0 && __XSI_VISIBLE < 600 && __ISO_C_VISIBLE < 1999
+#undef isinf
+#undef isnan
+int isinf(double);
+int isnan(double);
+#endif
+
double acos(double);
double asin(double);
double atan(double);
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