diff options
Diffstat (limited to 'src/math/exp2f.c')
| -rw-r--r-- | src/math/exp2f.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/math/exp2f.c b/src/math/exp2f.c index cf6126ee..296b6343 100644 --- a/src/math/exp2f.c +++ b/src/math/exp2f.c @@ -91,6 +91,8 @@ float exp2f(float x) /* Filter out exceptional cases. */ ix = u.i & 0x7fffffff; if (ix > 0x42fc0000) { /* |x| > 126 */ + if (ix > 0x7f800000) /* NaN */ + return x; if (u.i >= 0x43000000 && u.i < 0x80000000) { /* x >= 128 */ x *= 0x1p127f; return x; |