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-rw-r--r--math/mathcalls.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/math/mathcalls.h b/math/mathcalls.h
index d566020aee..0aac420bd0 100644
--- a/math/mathcalls.h
+++ b/math/mathcalls.h
@@ -63,6 +63,11 @@ __MATHCALL (sin,, (_Mdouble_ __x));
/* Tangent of X. */
__MATHCALL (tan,, (_Mdouble_ __x));
+#ifdef __USE_GNU
+/* Cosine and sine of X. */
+__MATHDECL (void, sincos,,
+ (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
+#endif
/* Hyperbolic functions. */