JonY wrote:
> There is no such macro as __MINGW64__, use __MINGW64_VERSION_MAJOR
> instead, its guaranteed to be defined if you include any mingw-w64
> headers.
>
> I think __USE_MINGW_ANSI_STDIO only applies to the printf family, the
> scanf family has not been ported yet, so you'll need to use %I64u
> instead of %llu.
>
Hello, thank you all for your replies. I seem to be having some trouble
getting
__MINGW64_VERSION_MAJOR to work for me. Perhaps I have set up my environment
wrong? I've downloaded mingw-w64-bin_x86_64-mingw_20100123_sezero.zip and
extracted it to its own folder, at c:\mingw64-20100123\ (which has bin, lib,
lib64, etc in it). Then I have created a command prompt, that when I start it,
it sets the PATH to: PATH C:\mingw64-20100123\bin;C:\msys\1.0\bin;%PATH%
Does this look reasonable so for?
I was wondering, how does it know where the correct *.h or *.a files are? I
see
that most of them are not in \include or \lib, but are under
\x86_64-w64-mingw32\include and \x86_64-w64-mingw32\lib. Does the gcc.exe in
\bin know where to look for these files. For example, I've created a test
program that includes <stdio.h> and <inttypes.h>. I've tried putting:
#ifdef __MINGW64_VERSION_MAJOR
#define __USE_MINGW_ANSI_STDIO 1
#endif
before those 2 includes, but it doesn't seem to work. If I leave off the
ifdef,
it does work. Can anyone see what I might be doing wrong?
Also, on another matter, when I just #define __USE_MINGW_ANSI_STDIO 1 it seems
to break %"PRIu64" for sscanf. I'm including my small test code so you can see
what I am doing.
/* without this define, the sscanf with PRIu64 works fine */
#define __USE_MINGW_ANSI_STDIO 1
#include <stdio.h>
#include <inttypes.h>
typedef unsigned long long u64_t;
int main(int argc, char* argv[])
{
u64_t a = 98765432101ULL;
u64_t a_in;
char a_str[] = "98765432101";
char b_str[20];
printf("Testing printf functions...\n");
printf("str: a = %s\n", a_str);
printf("llu: a = %llu\n", a);
printf("pri: a = %"PRIu64"\n", a);
printf("i64: a = %I64u\n", a);
printf("\n");
printf("Testing scanf functions...\n");
sscanf(a_str, "%s", b_str);
printf("str: a = %s\n", b_str);
sscanf(a_str, "%llu", &a_in);
printf("llu: a = %llu\n", a_in);
sscanf(a_str, "%"PRIu64"", &a_in);
printf("pri: a = %"PRIu64"\n", a_in);
sscanf(a_str, "%I64u", &a_in);
printf("i64: a = %I64u\n", a_in);
return 0;
}
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