http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58849
Bug ID: 58849 Summary: complex number, memory is corrupted Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: otmar.struwe at web dot de Created attachment 31075 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31075&action=edit test source In the below test program the value of the variable "comp" is corrupted. Wrong output is: doub = -0.544021 doub = -0 Expected output: doub = -0.544021 doub = -0.544021 Compiled with: gcc -Wall -std=c11 -Wpedantic -o complex.exe complex.c Compiler: Using built-in specs. COLLECT_GCC=d:\pc\msys\1.0\mingw\bin\gcc.exe COLLECT_LTO_WRAPPER=d:/pc/msys/1.0/mingw/bin/../libexec/gcc/mingw32/4.8. 1/lto-wrapper.exe Target: mingw32 Configured with: ../gcc-4.8.1/configure --prefix=/mingw --host=mingw32 --build=mingw32 --without-pic --enable-shared --enable-static --with-gnu-ld --enable-lto --enable-libssp --disable-multilib --enable-languages=c,c++,fortran,objc,obj-c++,ada --disable-sjlj-exceptions --with-dwarf2 --disable-win32-registry --enable-libstdcxx-debug --enable-version-specific-runtime-libs --with-gmp=/usr/src/pkg/gmp-5.1.2-1-mingw32-src/bld --with-mpc=/usr/src/pkg/mpc-1.0.1-1-mingw32-src/bld --with-mpfr= --with-system-zlib --with-gnu-as --enable-decimal-float=yes --enable-libgomp --enable-threads --with-libiconv-prefix=/mingw32 --with-libintl-prefix=/mingw --disable-bootstrap LDFLAGS=-s CFLAGS=-D_USE_32BIT_TIME_T Thread model: win32 gcc version 4.8.1 (GCC)