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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/init/init-ref1.C
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Diffstat (limited to 'gcc/testsuite/g++.dg/init/init-ref1.C')
-rw-r--r--gcc/testsuite/g++.dg/init/init-ref1.C45
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/init/init-ref1.C b/gcc/testsuite/g++.dg/init/init-ref1.C
new file mode 100644
index 000000000..d0170cd18
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/init-ref1.C
@@ -0,0 +1,45 @@
+// Submitted by Erik Rozendaal <dlr@acm.org>
+// Test case for GNATS bug 787.
+// { dg-do run }
+
+#include <stdio.h>
+#include <stdlib.h>
+
+static int calls;
+
+int &foo (int &arg)
+{
+ calls++;
+ arg=0;
+ return arg;
+}
+
+int &identity (int &x)
+{
+ return x;
+}
+
+int main()
+{
+ int a;
+
+ calls = 0;
+ int &b = ++foo (a);
+ if (calls > 1)
+ abort ();
+ if (&a != &b)
+ abort ();
+ if (a != 1)
+ abort ();
+
+ calls = 0;
+ int &c = ++identity (++foo (a));
+ if (calls > 1)
+ abort ();
+ if (&a != &c)
+ abort ();
+ if (a != 2)
+ abort ();
+
+ exit (0);
+}