[PATCH 2/2] libs/musl: Set EDOM in exp for NAN.

[Daniel Lehman]

From: Daniel Lehman

---
 dlls/msvcr120/tests/msvcr120.c | 21 +++++++++------------
 libs/musl/src/math/exp.c       |  3 +++
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/dlls/msvcr120/tests/msvcr120.c b/dlls/msvcr120/tests/msvcr120.c
index bb477e2a87a..462d7bd11bd 100644
--- a/dlls/msvcr120/tests/msvcr120.c
+++ b/dlls/msvcr120/tests/msvcr120.c
@@ -1815,17 +1815,16 @@ static void test_exp(void)
     static const struct {
         double x, exp;
         errno_t e;
-        BOOL todo;
     } tests[] = {
-        {  NAN,               NAN,                     EDOM, TRUE  },
-        { -NAN,              -NAN,                     EDOM, TRUE  },
-        {  INFINITY,          INFINITY                             },
-        { -INFINITY,          0.0                                  },
-        {  0.0,               1.0                                  },
-        {  1.0,               2.7182818284590451                   },
-        {  709.7,             1.6549840276802644e+308              },
-        {  709.782712893384,  1.7976931348622732e+308              },
-        {  709.782712893385,  INFINITY,               ERANGE       },
+        {  NAN,               NAN,                     EDOM  },
+        { -NAN,              -NAN,                     EDOM  },
+        {  INFINITY,          INFINITY                       },
+        { -INFINITY,          0.0                            },
+        {  0.0,               1.0                            },
+        {  1.0,               2.7182818284590451             },
+        {  709.7,             1.6549840276802644e+308        },
+        {  709.782712893384,  1.7976931348622732e+308        },
+        {  709.782712893385,  INFINITY,               ERANGE },
     };
     errno_t e;
     double r;
@@ -1844,13 +1843,11 @@ static void test_exp(void)
             ok(compare_double(r, tests[i].exp, 16), "expected %0.16e, got %0.16e for %d\n", tests[i].exp, r, i);
         ok(signbit(r) == signbit(tests[i].exp), "expected sign %x, got %x for %d\n",
             signbit(tests[i].exp), signbit(r), i);
-        todo_wine_if(tests[i].todo) {
         ok(e == tests[i].e, "expected errno %i, but got %i for %d\n", tests[i].e, e, i);
         if (tests[i].e)
             ok(matherr_called, "matherr wasn't called for %d\n", i);
         else
             ok(!matherr_called, "matherr was called for %d\n", i);
-        }
     }

__setusermatherr(NULL);
diff --git a/libs/musl/src/math/exp.c b/libs/musl/src/math/exp.c
index 0c518a31ebd..08c4831a03f 100644
--- a/libs/musl/src/math/exp.c
+++ b/libs/musl/src/math/exp.c
@@ -79,6 +79,9 @@ double __cdecl __exp(double x, matherr_t matherr)
    uint64_t ki, idx, top, sbits;
    double_t kd, z, r, r2, scale, tail, tmp;

+	if (isnan(x))
+		return matherr(_DOMAIN, "exp", x, 0, x);
+
    abstop = top12(x) & 0x7ff;
    if (predict_false(abstop - top12(0x1p-54) >= top12(512.0) - top12(0x1p-54))) {
    	if (abstop - top12(0x1p-54) >= 0x80000000)