gettemppath.cpp File Reference

#include <corecrt_internal.h>
#include <io.h>

Include dependency graph for gettemppath.cpp:

Go to the source code of this file.

Functions
DWORD __cdecl	__acrt_GetTempPath2A (DWORD nBufferLength, LPSTR lpBuffer)

Function Documentation

__acrt_GetTempPath2A()

DWORD __cdecl __acrt_GetTempPath2A	(	DWORD	nBufferLength,
		LPSTR	lpBuffer
	)

Definition at line 17 of file gettemppath.cpp.

{
    wchar_t wide_buffer[_MAX_PATH + 1] = {};
 
    DWORD const get_temp_path_result = __acrt_GetTempPath2W(_countof(wide_buffer), wide_buffer);
    if (get_temp_path_result == 0)
    {
        return 0;
    }
 
    bool const use_oem_code_page = !__acrt_AreFileApisANSI();
    int const code_page = use_oem_code_page ? CP_OEMCP : CP_ACP;
#pragma warning(suppress:__WARNING_W2A_BEST_FIT) // 38021 Prefast recommends WC_NO_BEST_FIT_CHARS.
    int const wctmb_result = __acrt_WideCharToMultiByte(code_page, 0, wide_buffer, -1, lpBuffer, nBufferLength, nullptr, nullptr);
    if (wctmb_result == 0)
    {
        return 0;
    }
 
    // The return value of WideCharToMultiByte includes the null terminator; the
    // return value of GetTempPathA does not.
    return wctmb_result - 1;
}