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-rw-r--r--src/H5private.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/H5private.h b/src/H5private.h
index e832987..dc15faa 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -445,6 +445,22 @@ MS doesn't recognize it yet (as of April 2001)
#endif /* NDEBUG */
/*
+ * A macro for detecting over/under-flow when assigning between types
+ */
+#ifndef NDEBUG
+#define H5_ASSIGN_OVERFLOW(var,expr,vartype,casttype) \
+{ \
+ vartype _tmp_overflow=(vartype)(expr); \
+ casttype _tmp_overflow2=(casttype)(_tmp_overflow); \
+ assert((casttype)_tmp_overflow==_tmp_overflow2); \
+ (var)=_tmp_overflow2; \
+}
+#else /* NDEBUG */
+#define H5_ASSIGN_OVERFLOW(var,expr,vartype,casttype) \
+ (var)=(casttype)(expr);
+#endif /* NDEBUG */
+
+/*
* Data types and functions for timing certain parts of the library.
*/
typedef struct {