setlocale.h

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#ifndef _RWSTD_LOC_RW_SETLOCALE_H_INCLUDED
#define _RWSTD_LOC_RW_SETLOCALE_H_INCLUDED
 
 
#include "podarray.h"
#include <rw/_defs.h>
 
 
_RWSTD_NAMESPACE (__rw) { 
 
// class provides synchronized access to the C setlocale() facility
// if the first argument is 0, ctor locks, obtains the name of the
// current C locale (by calling setlocale (0)), and unlocks
// if the first argument is not 0, ctor locks and obtains and saves
// the name of the current C locale, and sets the C locale to that
// named by the first argument; dtor then resets the global C locale
// to what it was before the ctor invocation and unlocks
 
struct _RWSTD_EXPORT __rw_setlocale
{
    __rw_setlocale (const char* = 0, int = _RWSTD_LC_ALL, int = 0);
 
    ~__rw_setlocale ();
 
    // returns the saved name (will not be 0)
    const char* name () const {
        return _C_name;
    }
 
private:
 
    __rw_setlocale (const __rw_setlocale&);   // not defined
    void operator= (const __rw_setlocale&);   // not defined
 
    char  _C_namebuf [80];   // used if locale name fits
    char *_C_name;           // _C_namebuf if name fits, otherwise allocated
    int   _C_guard;          // non-0 when object owns the global lock
    int   _C_cat;            // saved LC_XXX category
};
 
 
char* __rw_locale_name (int, const char*, __rw_chararray&);
 
 
}   // namespace __rw
 
 
#endif   // _RWSTD_LOC_RW_SETLOCALE_H_INCLUDED