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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.old-deja/g++.brendan/copy8.C | |
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Diffstat (limited to 'gcc/testsuite/g++.old-deja/g++.brendan/copy8.C')
-rw-r--r-- | gcc/testsuite/g++.old-deja/g++.brendan/copy8.C | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.old-deja/g++.brendan/copy8.C b/gcc/testsuite/g++.old-deja/g++.brendan/copy8.C new file mode 100644 index 000000000..096052342 --- /dev/null +++ b/gcc/testsuite/g++.old-deja/g++.brendan/copy8.C @@ -0,0 +1,68 @@ +// { dg-do run } +// GROUPS passed copy-ctors +/* +This report is for GCC 2.3.3 running on a Sun/4. The bug is that when +a class instance is passed-by-value, GCC does not correctly copy the value. +At the end of this report is an example program that demonstrates the bug. +It should print: + + construct A('x') + copy A('x') + destruct A('x') + destruct A('x') + +and in fact does for IBM's xlC C++. However, for GCC 2.3.3, it fails +to print the second line ["copy A('x')"], which indicates that it failed +to call the copy-constructor for class A when it should have. Below is a +typescript that lists the program, shows how I compiled it, and shows the +incorrect output. +*/ + +extern "C" int printf (const char *, ...); +extern "C" void exit (int); + +int count = 0; + +void +die (int x) +{ + if (x != ++count) + { + printf ("FAIL\n"); + exit (1); + } +} + +class A { // Class with explicit & instrumented copy-constructor and destructor. +public: + const char * id; + A( const char * id1 ) : id(id1) { die (1); } + + // Copy constructor + A( const A& a ) : id(a.id) { die (2); } + + // Destructor + ~A() { count++; if (count != 3 && count != 4) die (-1); } +}; + +class X { // Class without explicit copy-constructor +private: + A a; +public: + X( const char * id ) : a(id) {} +}; + +void Func( X x ) { // Function with call-by-value argument +} + +int +main() { + X x("x"); // Construct instance of x. + + // The next line should call the copy-constructor for X since x is + // being passed by value. For GCC 2.3.3 on a Sun/4, it does not. + Func(x); + + printf ("PASS\n"); + return 0; +} |