------- Comment #2 from christian dot bruel at st dot com 2009-11-26 11:35 ------- Created an attachment (id=19154) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19154&action=view) computed assignment test case
compiled with g++ -O0 gnx2439$ valgrind ./a.out==1599== Memcheck, a memory error detector ==1599== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al. ==1599== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info ==1599== Command: ./a.out ==1599== ==1599== Invalid read of size 1 ==1599== at 0x8048A0B: void std::_Array_augmented___plus<int>(std::_Array<int>, std::_Array<bool>, std::_Array<int>, unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x80488D4: std::mask_array<int>::operator+=(std::valarray<int> const&) const (in /home/bruel/tmp/a.out) ==1599== by 0x80485E9: main (in /home/bruel/tmp/a.out) ==1599== Address 0x4129061 is 0 bytes after a block of size 1 alloc'd ==1599== at 0x40061CC: operator new(unsigned int) (vg_replace_malloc.c:214) ==1599== by 0x804867E: std::__valarray_get_memory(unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x8048920: bool* restrict std::__valarray_get_storage<bool>(unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x8048728: std::valarray<bool>::valarray(bool const&, unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x804857B: main (in /home/bruel/tmp/a.out) ==1599== ==1599== Invalid read of size 4 ==1599== at 0x8048A18: void std::_Array_augmented___plus<int>(std::_Array<int>, std::_Array<bool>, std::_Array<int>, unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x80488D4: std::mask_array<int>::operator+=(std::valarray<int> const&) const (in /home/bruel/tmp/a.out) ==1599== by 0x80485E9: main (in /home/bruel/tmp/a.out) ==1599== Address 0x4129108 is not stack'd, malloc'd or (recently) free'd ==1599== ==1599== Invalid write of size 4 ==1599== at 0x8048A24: void std::_Array_augmented___plus<int>(std::_Array<int>, std::_Array<bool>, std::_Array<int>, unsigned int) (in /home/bruel/tmp/a.out) ==1599== by 0x80488D4: std::mask_array<int>::operator+=(std::valarray<int> const&) const (in /home/bruel/tmp/a.out) ==1599== by 0x80485E9: main (in /home/bruel/tmp/a.out) ==1599== Address 0x4129108 is not stack'd, malloc'd or (recently) free'd -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42182
