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-rw-r--r--src/H5private.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/H5private.h b/src/H5private.h
index 74fab79..7ff0c87 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -1032,6 +1032,9 @@ typedef off_t h5_stat_size_t;
#ifndef HDislower
#define HDislower(C) islower((int)(C)) /*cast for solaris warning*/
#endif /* HDislower */
+#ifndef HDisnan
+ #define HDisnan(X) isnan(X)
+#endif /* HDisnan */
#ifndef HDisprint
#define HDisprint(C) isprint((int)(C)) /*cast for solaris warning*/
#endif /* HDisprint */