------- Comment #4 from lmorrison at nautel dot com 2006-02-06 19:54 ------- (From update of attachment 10792) assembly output from previous preprocessed source
Generated with commandline: avr-gcc -c -mmcu=atmega32 -I. -gdwarf-2 -DF_CPU=8000000UL -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=main.lst -std=gnu99 -MD -MP -MF .dep/main.o.d main.c -o main.o Using gcc 3.4.5 on Win32 host, avr target. In the first two examples ( *ptr++ = struct; and memcpy(ptr++, &struct, sizeof(struct)); ) the source pointer is being incremented by sizeof(struct) for each byte being copied. In the third example, the pointer increment is set aside as a distinct statement. Here, things behave as expected. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26118
