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-rw-r--r--math/erf.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/math/erf.c b/math/erf.c
index 5f9f40dda264..2c93a304346a 100644
--- a/math/erf.c
+++ b/math/erf.c
@@ -1,13 +1,15 @@
/*
* Double-precision erf(x) function.
*
- * Copyright (c) 2020, Arm Limited.
+ * Copyright (c) 2020-2024, Arm Limited.
* SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
*/
#include "math_config.h"
#include <math.h>
#include <stdint.h>
+#include "test_defs.h"
+#include "test_sig.h"
#define TwoOverSqrtPiMinusOne 0x1.06eba8214db69p-3
#define C 0x1.b0ac16p-1
@@ -242,3 +244,11 @@ erf (double x)
return 1.0;
}
}
+
+TEST_SIG (S, D, 1, erf, -6.0, 6.0)
+TEST_ULP (erf, 0.51)
+TEST_ULP_NONNEAREST (erf, 0.9)
+TEST_INTERVAL (erf, 0, 0xffff000000000000, 10000)
+TEST_SYM_INTERVAL (erf, 0x1p-1022, 0x1p-26, 40000)
+TEST_SYM_INTERVAL (erf, 0x1p-26, 0x1p3, 40000)
+TEST_INTERVAL (erf, 0, inf, 40000)