返回值
此函数返回翻译的字符数,不包括结尾的空字符。如果遇到无效的多字节字符,则返回-1值。
示例
以下示例显示mbstowcs函数的用法-
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main () {
int len;
char *pmbnull = NULL;
char *pmb = (char *)malloc( MB_CUR_MAX );
wchar_t *pwc = L"Hi";
wchar_t *pwcs = (wchar_t *)malloc( sizeof( wchar_t ));
printf("Converting to multibyte string\n");
len = wcstombs( pmb, pwc, MB_CUR_MAX);
printf("Characters converted %d\n", len);
printf("Hex value of first multibyte character: %#.4x\n", pmb);
printf("Converting back to Wide-Character string\n");
len = mbstowcs( pwcs, pmb, MB_CUR_MAX);
printf("Characters converted %d\n", len);
printf("Hex value of first wide character %#.4x\n\n", pwcs);
return(0);
}
尝试一下
让我们编译并运行上面的程序,它将产生以下结果-
Converting to multibyte string
Characters converted 1
Hex value of first multibyte character: 0x19a60010
Converting back to Wide-Character string
Characters converted 1
Hex value of first wide character 0x19a60030