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-rw-r--r--math/libm-test.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/math/libm-test.c b/math/libm-test.c
index a0c662b69c..7975bb4404 100644
--- a/math/libm-test.c
+++ b/math/libm-test.c
@@ -42,7 +42,7 @@
 /* This program isn't finished yet.
    It has tests for:
    acos, acosh, asin, asinh, atan, atan2, atanh,
-   cbrt, ceil, copysign, cos, cosh, erf, erfc, exp, exp2, expm1,
+   cbrt, ceil, copysign, cos, cosh, erf, erfc, exp, exp10, exp2, expm1,
    fabs, fdim, floor, fma, fmax, fmin, fmod, fpclassify,
    frexp, gamma, hypot,
    ilogb, isfinite, isinf, isnan, isnormal,
@@ -1192,6 +1192,31 @@ exp_test (void)
 
 
 static void
+exp10_test (void)
+{
+  errno = 0;
+  FUNC(exp10) (0);
+  if (errno == ENOSYS)
+    /* Function not implemented.  */
+    return;
+
+  check ("exp10 (+0) == 1", FUNC(exp10) (0), 1);
+  check ("exp10 (-0) == 1", FUNC(exp10) (minus_zero), 1);
+
+  check_isinfp ("exp10 (+inf) == +inf", FUNC(exp10) (plus_infty));
+  check ("exp10 (-inf) == 0", FUNC(exp10) (minus_infty), 0);
+  check_eps ("exp10 (3) == 1000", FUNC(exp10) (3), 1000,
+	     CHOOSE(5e-16, 0, 0));
+  check_eps ("exp10 (-1) == 0.1", FUNC(exp10) (-1), 0.1,
+	     CHOOSE(6e-18, 0, 0));
+  check_isinfp ("exp10 (1e6) == +inf", FUNC(exp10) (1e6));
+  check ("exp10 (-1e6) == 0", FUNC(exp10) (-1e6), 0);
+  check_eps ("exp10 (0.7) == 5.0118723...", FUNC(exp10) (0.7),
+	     5.0118723362727228500L, CHOOSE(6e-16, 9e-16, 0));
+}
+
+
+static void
 exp2_test (void)
 {
   errno = 0;
@@ -5956,6 +5981,7 @@ main (int argc, char *argv[])
 
   /* exponential and logarithmic functions */
   exp_test ();
+  exp10_test ();
   exp2_test ();
   expm1_test ();
   frexp_test ();