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-rw-r--r--test/h5test.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/test/h5test.h b/test/h5test.h
index 640a882..8187bcf 100644
--- a/test/h5test.h
+++ b/test/h5test.h
@@ -117,6 +117,21 @@ extern MPI_Info h5_io_info_g; /* MPI INFO object for IO */
/* set alarms to N seconds if N > 0, else use default alarm_seconds. */
#define ALARM_SET(N) HDalarm((N)>0 ? N : alarm_seconds)
+/*
+ * The methods to compare the equality of floating-point values:
+ * 1. XXX_ABS_EQUAL - check if the difference is smaller than the
+ * Epsilon value. The Epsilon values, FLT_EPSILON, DBL_EPSILON,
+ * and LDBL_EPSILON, are defined by compiler in float.h.
+ * 2. To be defined later.
+ */
+#define FLT_ABS_EQUAL(X,Y) (fabsf(X-Y)<FLT_EPSILON)
+#define DBL_ABS_EQUAL(X,Y) (fabs(X-Y)<DBL_EPSILON)
+#define LDBL_ABS_EQUAL(X,Y) (fabsl(X-Y)<LDBL_EPSILON)
+
+/*#define FP_ABS_UNEQUAL(X,Y,T) ((T==1 && fabsf(X-Y)>FLT_EPSILON) || \
+ (T==2 && fabs(X-Y)>DBL_EPSILON) || \
+ (T==3 && fabsl(X-Y)>LDBL_EPSILON))*/
+
#ifdef __cplusplus
extern "C" {
#endif