Here is my c code test:
drew@drew-PC MSYS /e/examples/c
$ cat align.c
#include <stdio.h>
typedef struct _A {
char a;
long long b;
} A;
int main() {
printf("%d\n", sizeof(int*));
printf("%d\n", sizeof(A));
}
drew@drew-PC MSYS /e/examples/c
$ gcc -o align align.c
drew@drew-PC MSYS /e/examples/c
$ ./align.exe
4
16
the gcc verison is:
$ gcc -v
Using built-in specs.
COLLECT_GCC=D:\msys64\mingw32\bin\gcc.exe
COLLECT_LTO_WRAPPER=D:/msys64/mingw32/bin/../lib/gcc/i686-w64-mingw32/6.3.0/
lto-wrapper.exe
Target: i686-w64-mingw32
Best regards,
xjdrew
On Friday, May 19, 2017 at 7:38:46 PM UTC+8, Jan Mercl wrote:
> On Fri, May 19, 2017 at 1:29 PM xjdrew <xj....@gmail.com <javascript:>>
> wrote:
>
> > uint64 should aligin in 8 bytes, why it aligns in 4 bytes in
> go1.8.1.linux-386?
>
>
> https://en.wikipedia.org/wiki/Data_structure_alignment#Typical_alignment_of_C_structs_on_x86
>
> > Could anyone tell me how I can get the same result with go playground?
>
> Why should the playground output the same results when the GOARCH and/or
> GOOS differs?
>
> --
>
> -j
>
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