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Declaration of swprintf for MinGW users.
someone972 Offline
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#1
Declaration of swprintf for MinGW users.

In case anyone decides to use MinGW to compile HPL1/OALWrapper, you may have found that the version of swprintf provided with MinGW takes three arguments, omitting the size of the buffer. The four argument function exists in MinGW, but it is under a different name. To remedy this I created the following header:
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#ifndef MINGW_FUNCTION_DECL_H
#define MINGW_FUNCTION_DECL_H

#ifdef __MINGW32__
#include <cstring>
#include <cstdarg>
#include <cwchar>

inline int swprintf(wchar_t *bufsize_t length, const wchar_t *fmt, ...)
{
    
va_list args;
    
int i;

    
va_start(argsfmt);
    
i=_vsnwprintf(buf,length,fmt,args);
    
va_end(args);
    return 
i;
};

inline int vswprintf(wchar_t *bufsize_t length, const wchar_t *fmtva_list args)
{
    return 
_vsnwprintf(buf,length,fmt,args);
}

#endif //__MINGW32__
#endif //MINGW_FUNCTION_DECL_H 
Then anywhere that the functions are used, I add the following to the header file:
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#ifdef __MINGW32__
    #include "../MinGW_function_declarations.hpp" //May be a different path depending on project.
#endif 

Feel free to provide feedback or criticisms of my method. Hopefully this will be of use to anyone using MinGW.
05-11-2012, 02:09 AM
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Urkle Offline
FG - Associate

Posts: 1,172
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Joined: Jul 2006
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#2
RE: Declaration of swprintf for MinGW users.

A better way maybe to rework that code to simply use a wstring.. wchar stuff is such a PITA.

Developing away on one of
Multiple Macs running 10.6, 10.7, 10.8, and 10.9.
Linux, 8-core AMD, 8GB RAM, Fedora 18, nVidia 450 1GB
05-11-2012, 02:22 AM
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