C++中TCHAR数组(wchar_t*)和char数组相关函数的对应关系_C/C++_编程开发_程序员俱乐部

MSDN文档：

strlen, wcslen, _mbslen, _mbslen_l, _mbstrlen, _mbstrlen_l

https://msdn.microsoft.com/en-us/library/78zh94ax.aspx

strcmp, wcscmp, _mbscmp

https://msdn.microsoft.com/en-us/library/e0z9k731.aspx

strchr, wcschr, _mbschr, _mbschr_l

https://msdn.microsoft.com/en-us/library/b34ccac3.aspx

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char*函数与THCAR*（wchar_t*）函数对应关系是：

strlen -》?wcslen

strcpy -》?wcscpy

strcmp -》wcscmp

strchr -》 wcschr

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代码示例：

class="cpp">// crt_strlen.c
// Determine the length of a string. For the multi-byte character
// example to work correctly, the Japanese language support for
// non-Unicode programs must be enabled by the operating system.


#include <string.h>
#include <locale.h>

int main()
{
   char* str1 = "Count.";
   wchar_t* wstr1 = L"Count.";
   char * mbstr1;
   char * locale_string;

   // strlen gives the length of single-byte character string
   printf("Length of '%s' : %d\n", str1, strlen(str1) );

   // wstrlen gives the length of a wide character string
   wprintf(L"Length of '%s' : %d\n", wstr1, wcslen(wstr1) );

   // A multibyte string: [A] [B] [C] [katakana A] [D] [\0]
   // in Code Page 932. For this example to work correctly,
   // the Japanese language support must be enabled by the
   // operating system.
   mbstr1 = "ABC" "\x83\x40" "D";

   locale_string = setlocale(LC_CTYPE, "Japanese_Japan");

   if (locale_string == NULL)
   {
      printf("Japanese locale not enabled. Exiting.\n");
      exit(1);
   }
   else
   {
      printf("Locale set to %s\n", locale_string);
   }

   // _mbslen will recognize the Japanese multibyte character if the
   // current locale used by the operating system is Japanese
   printf("Length of '%s' : %d\n", mbstr1, _mbslen(mbstr1) );

   // _mbstrlen will recognize the Japanese multibyte character
   // since the CRT locale is set to Japanese even if the OS locale
   // isnot. 
   printf("Length of '%s' : %d\n", mbstr1, _mbstrlen(mbstr1) );
   printf("Bytes in '%s' : %d\n", mbstr1, strlen(mbstr1) );   

}

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