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authorJakob Kaivo <jkk@ung.org>2019-03-03 21:25:50 -0500
committerJakob Kaivo <jkk@ung.org>2019-03-03 21:25:50 -0500
commit06696f40afe58a231e2531c8bf6d9f0dadb92e51 (patch)
treeb146422c6326ffe3debf3163f0941d8dda0be105 /src/math/erfc.c
parentf20eeea657d62f2ef905627ca3a9094d33af7d40 (diff)
outline details from C18 annex F
Diffstat (limited to 'src/math/erfc.c')
-rw-r--r--src/math/erfc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/math/erfc.c b/src/math/erfc.c
index 84579e10..b937590d 100644
--- a/src/math/erfc.c
+++ b/src/math/erfc.c
@@ -4,6 +4,10 @@
TYPE TGFN(erfc)(TYPE x)
{
+ if (fpclassify(x) == FP_INFINITE) {
+ return signbit(x) ? 2.0 : 0.0;
+ }
+
return x;
}