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-rw-r--r--src/math/copysign.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/math/copysign.c b/src/math/copysign.c
index 6e5cb127..a462348b 100644
--- a/src/math/copysign.c
+++ b/src/math/copysign.c
@@ -4,7 +4,7 @@
TYPE TGFN(copysign)(TYPE x, TYPE y)
{
- return 0.0;
+ return x - y;
}
/*