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-rw-r--r--src/complex/ctan.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/complex/ctan.c b/src/complex/ctan.c
index 918717bf..e18cb5ed 100644
--- a/src/complex/ctan.c
+++ b/src/complex/ctan.c
@@ -7,3 +7,11 @@ double complex ctan(double complex z)
z = ctanh(CMPLX(-cimag(z), creal(z)));
return CMPLX(cimag(z), -creal(z));
}
+
+
+#ifdef TEST
+int
+main(void) {
+ return 0;
+}
+#endif