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-rw-r--r--libm/e_atan2.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/libm/e_atan2.c b/libm/e_atan2.c
index 71c916d52..65f29240e 100644
--- a/libm/e_atan2.c
+++ b/libm/e_atan2.c
@@ -114,3 +114,21 @@ double attribute_hidden __ieee754_atan2(double y, double x)
return (z-pi_lo)-pi;/* atan(-,-) */
}
}
+
+/*
+ * wrapper atan2(y,x)
+ */
+#ifndef _IEEE_LIBM
+double atan2(double y, double x)
+{
+ double z = __ieee754_atan2(y,x);
+ if (_LIB_VERSION == _IEEE_ || isnan(x) || isnan(y))
+ return z;
+ if (x == 0.0 && y == 0.0)
+ return __kernel_standard(y,x,3); /* atan2(+-0,+-0) */
+ return z;
+}
+#else
+strong_alias(__ieee754_atan2, atan2)
+#endif
+libm_hidden_def(atan2)