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Diffstat (limited to 'gcc/f/runtime/libF77/c_cos.c')
-rw-r--r--gcc/f/runtime/libF77/c_cos.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/f/runtime/libF77/c_cos.c b/gcc/f/runtime/libF77/c_cos.c
new file mode 100644
index 00000000000..9e833c168b3
--- /dev/null
+++ b/gcc/f/runtime/libF77/c_cos.c
@@ -0,0 +1,21 @@
+#include "f2c.h"
+
+#ifdef KR_headers
+extern double sin(), cos(), sinh(), cosh();
+
+VOID c_cos(resx, z) complex *resx, *z;
+#else
+#undef abs
+#include <math.h>
+
+void c_cos(complex *resx, complex *z)
+#endif
+{
+complex res;
+
+res.r = cos(z->r) * cosh(z->i);
+res.i = - sin(z->r) * sinh(z->i);
+
+resx->r = res.r;
+resx->i = res.i;
+}