efficient sincos based on sin and cos

[musl] / include / math.h

diff --git a/include/math.h b/include/math.h
index f320b8e..b9139b0 100644 (file)
--- a/include/math.h
+++ b/include/math.h
@@ -382,6 +382,10 @@ long double ynl(int, long double);
 double      scalb(double, double);
 float       scalbf(float, float);
 long double scalbl(long double, long double);
+
+void        sincos(double, double*, double*);
+void        sincosf(float, float*, float*);
+void        sincosl(long double, long double*, long double*);
 #endif
 
 #ifdef __cplusplus