'gtk2_ardour' - 'std::isinf' + 'std::isnan' are not available in MSVC (at least, not VC8)

1 files changed, 12 insertions, 1 deletions

diff --git a/gtk2_ardour/automation_line.cc b/gtk2_ardour/automation_line.cc
index 17e0792477..94ca7802f0 100644
--- a/gtk2_ardour/automation_line.cc
+++ b/gtk2_ardour/automation_line.cc
@@ -17,6 +17,17 @@
 
 */
 
+#ifdef COMPILER_MSVC
+#include <float.h>
+
+// 'std::isinf()' and 'std::isnan()' are not available in MSVC.
+#define isinf(val) !((bool)_finite((double)val))
+#define isnan(val) (bool)_isnan((double)val)
+#else
+using std::isnan;
+using std::isinf;
+#endif
+
 #include <cmath>
 #include <climits>
 #include <vector>
@@ -933,7 +944,7 @@ AutomationLine::reset_callback (const Evoral::ControlList& events)
 
 		model_to_view_coord (tx, ty);
 
-		if (std::isnan (tx) || std::isnan (ty)) {
+		if (isnan (tx) || isnan (ty)) {
 			warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
 						   _name) << endmsg;
 			continue;