1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/value_4.c b/gcc/testsuite/gfortran.dg/value_4.c
new file mode 100644
index 000000000..a9f9aae23
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/value_4.c
@@ -0,0 +1,49 @@
+/*  Passing from fortran to C by value, using VALUE.  This is identical
+    to c_by_val_1.c, which performs the same function for %VAL.
+
+    Contributed by Paul Thomas <pault@gcc.gnu.org>  */
+
+/* We used to #include <complex.h>, but this fails for some platforms
+   (like cygwin) who don't have it yet.  */
+#define complex __complex__
+#define _Complex_I (1.0iF)
+
+extern float *f_to_f__ (float, float*);
+extern int *i_to_i__ (int, int*);
+extern void c_to_c__ (complex float*, complex float, complex float*);
+extern void abort (void);
+
+/* In f_to_f and i_to_i we return the second argument, so that we do
+   not have to worry about keeping track of memory allocation between
+   fortran and C.  All three functions check that the argument passed
+   by value is the same as that passed by reference.  Then the passed
+   by value argument is modified so that the caller can check that
+   its version has not changed.*/
+
+float *
+f_to_f__(float a1, float *a2)
+{
+  if ( a1 != *a2 ) abort();
+  *a2 = a1 * 2.0;
+  a1 = 0.0;
+  return a2;
+}
+
+int *
+i_to_i__(int i1, int *i2)
+{
+  if ( i1 != *i2 ) abort();
+  *i2 = i1 * 3;
+  i1 = 0;
+  return i2;
+}
+
+void
+c_to_c__(complex float *retval, complex float c1, complex float *c2)
+{
+  if ( c1 != *c2 ) abort();
+  c1 = 0.0 + 0.0 * _Complex_I;
+  *retval = *c2 * 4.0;
+  return;
+}
+