Linux below Linux convert char to wchar_t

Use the MBSTOWCS function under Linux to convert char to wchar_t
function meaning: Convert a multibyte string to a wide char string
Description: The behaviour of mbstowcs depends on the lc_ctype category of the current locale
Return value: the MBSTOWCS () function returns the number of wide characters that make up the converted part of the Wide-char-act  Er string, not including the terminating null wide character. If an invalid multibyte sequence were encountered, (size_t)-1 is returned.

1#include <string.h>2#include <stdio.h>3#include <stdlib.h>4#include <wchar.h>5#include <locale.h>6#include <iostream>7 using namespacestd;Ten //Convert char type to WCHAR - //locale: The value of the environment variable, MBSTOWCS relies on this value to determine how the SRC is encoded
intTowchar (Char* &AMP;SRC, wchar_t* &dest,Const Char*locale ="Zh_cn.utf8"){ -   if(src = =NULL) { +Dest =NULL; -     return 0; +   } at   //setting locale based on environment variables - setlocale (lc_ctype, locale); -   //get converted to the desired wide character size -   intW_size = mbstowcs (NULL, SRC,0) +1; in   //w_size=0 Description The Mbstowcs return value is-1. Illegal characters are encountered during operation (it is likely that the localenot set correctly) to   if(W_size = =0) { +Dest =NULL; -     return-1; the   } $Wcout <<"w_size"<< w_size <<Endl;Panax NotoginsengDest =NewWchar_t[w_size]; -   if(!dest)return-1; the   intret = mbstowcs (dest, SRC, strlen (SRC) +1); +   if(Ret <=0)return-1; $   return 0; - } the intMain (){Wuyi   Char* str ="China 123"; thewchar_t *W_str; - Towchar (STR,W_STR); WuWcout << w_str[0] <<"--"<< w_str[1] <<"--"<< w_str[2]; -   Delete(W_STR); About   return 0; $}

1#include <stdio.h>2   3 intMainvoid){  5        intI_number, result; 6        floatF_number; 7        CharC_number, str[Bayi]; 8wchar_t Wc_str, ws_str[Bayi]; Tenprintf"\n\nenter an int, a float, chars and both strings\n");  Aresult = scanf ("%d%f%c%c%s%s",
&i_number, &f_number, &c_number, &wc_str, str, WS_STR);  -printf"\nthe number of fields input is%d\n",
result);  -printf"The contents is:%d%f%c%c%s%s\n",
I_number, F_number, C_number, Wc_str, str, WS_STR);  -wprintf (L"\n\nenter an int, a float, chars and both strings\n");  -result = wscanf (L"%d%f%hc%lc%s%ls",
&i_number, &f_number, &c_number, &wc_str, str, WS_STR);  +wprintf (L"\nthe number of fields input is%d\n",
result);  -wprintf (L"The contents is:%d%f%c%c%hs%s\n",
I_number, F_number, C_number, Wc_str, str, WS_STR);  +}

Linux below Linux convert char to wchar_t