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-rw-r--r--src/complex/cacosf.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/complex/cacosf.c b/src/complex/cacosf.c
new file mode 100644
index 00000000..563766e7
--- /dev/null
+++ b/src/complex/cacosf.c
@@ -0,0 +1,9 @@
+#include "libm.h"
+
+// FIXME
+
+float complex cacosf(float complex z)
+{
+ z = casinf(z);
+ return cpackf((float)M_PI_2 - crealf(z), -cimagf(z));
+}