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-rw-r--r--src/math/acos.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/math/acos.c b/src/math/acos.c
index ea9c87bf..e581e0dd 100644
--- a/src/math/acos.c
+++ b/src/math/acos.c
@@ -99,3 +99,11 @@ double acos(double x)
w = R(z)*s+c;
return 2*(df+w);
}
+
+
+#ifdef TEST
+int
+main(void) {
+ return 0;
+}
+#endif