Portable swscanf....

Portable swscanf.

This is one of changes required for http://codereview.chromium.org/4247
(porting in chrome/browser/ ). For Windows there should be swscanf_s,
which of course doesn't exist on Linux. #ifdefs would be ugly,
this seems to be better way.

BUG=2333

[Dean McNamee, 2008-09-30 13:22:40]

This had been attempted before, and isn't really possible because of the
potential differences of the format strings across platforms. :\

Looks Bummer To Me.

http://codereview.chromium.org/6003/diff/1/4
File base/string_util_win.h (right):

http://codereview.chromium.org/6003/diff/1/4#newcode27
Line 27: return ::vswscanf_s(ws, format, arguments);
The problem is that the arguments could be different between the platforms,
depending on what format string you use.  swscanf_s will take more parameters
for string buffer sizes if you're using a format with strings.

[please use my chromium address, 2008-09-30 16:10:16]

On 2008/09/30 13:22:40, Dean McNamee wrote:
> This had been attempted before, and isn't really possible because of the
> potential differences of the format strings across platforms. :\
> 
> Looks Bummer To Me.
> 
> http://codereview.chromium.org/6003/diff/1/4
> File base/string_util_win.h (right):
> 
> http://codereview.chromium.org/6003/diff/1/4#newcode27
> Line 27: return ::vswscanf_s(ws, format, arguments);
> The problem is that the arguments could be different between the platforms,
> depending on what format string you use.  swscanf_s will take more parameters
> for string buffer sizes if you're using a format with strings.

Should I close this? Maybe I can make changes in
http://codereview.chromium.org/4247 not requiring swscanf.