在c++中怎么能是空格计入字符串个数

void Func(char *pString, int &nCountChr, int &nCountSpace, int &nCountNum, int &nCountOther)
{
     nCountChr = 0;
     nCountNum = 0;
     nCountSpace = 0;
     nCountOther = 0;

    if (pString == NULL) {
        return;
    }

    char *pTraver = pString;
    while (pTraver[0] != '\0') {
        if (('a' <= pTraver[0] && pTraver[0]  <='z') ||
            ('A' <= pTraver[0] && pTraver[0]  <='Z') ) {
             nCountChr++;
        }
        else if ('0' <= pTraver[0] && pTraver[0]  <='9') {
             nCountNum++
        }
        else if (pTraver[0] ==' ') {
             nCountSpace++
        }
        else {
             nCountOther++
        }

        pTraver++;
    }
}