// 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 <windows.h>

#include <string.h> #include <locale.h> #include <stdio.h> #include <stdlib.h> #include <mbstring.h> #include <stdio.h> #include <tchar.h> #include <iostream> #include <string> #include <Windows.h> #include <fstream>

int main()

{    char* str1 = "Count.";    wchar_t* wstr1 = L"Count.我是程序员小心";    char * mbstr1;    char * locale_string;    TCHAR tch[4];    tch[0] = 0x0061; // a    tch[1] = 0x2014; // EM_DASH    tch[2] = 0x0063; // b    tch[3] = 0x0000; // NULL    DWORD z;    // strlen gives the length of single-byte character string    printf("Length of '%s' : %d\n", str1, strlen(str1) );       HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);    if (hStdOut == INVALID_HANDLE_VALUE) return 1;    DWORD dwBytesWritten;    WriteConsole(hStdOut, wstr1, (DWORD)_tcslen(wstr1), &dwBytesWritten, NULL);    WriteConsole(hStdOut, L"\n", 1, &dwBytesWritten, NULL);    // wstrlen gives the length of a wide character string    //WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE),wstr1,sizeof(wstr1),&z,NULL);    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) );     }