From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/g++.dg/init/copy7.C | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 gcc/testsuite/g++.dg/init/copy7.C (limited to 'gcc/testsuite/g++.dg/init/copy7.C') diff --git a/gcc/testsuite/g++.dg/init/copy7.C b/gcc/testsuite/g++.dg/init/copy7.C new file mode 100644 index 000000000..20e1e47db --- /dev/null +++ b/gcc/testsuite/g++.dg/init/copy7.C @@ -0,0 +1,39 @@ +// PR c++/39480 +// It isn't always safe to call memcpy with identical arguments. +// { dg-do run } + +extern "C" void abort(); +extern "C" void * +memcpy(void *dest, void *src, __SIZE_TYPE__ n) +{ + if (dest == src) + abort(); + else + { + __SIZE_TYPE__ i; + for (i = 0; i < n; i++) + ((char *)dest)[i] = ((const char*)src)[i]; + } +} + +struct A +{ + double d[10]; +}; + +struct B: public A +{ + char bc; +}; + +B b; + +void f(B *a1, B* a2) +{ + *a1 = *a2; +} + +int main() +{ + f(&b,&b); +} -- cgit v1.2.3