diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/init/init-ref1.C')
-rw-r--r-- | gcc/testsuite/g++.dg/init/init-ref1.C | 45 |
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); +} |