c - 逐字反转字符串

Question

我能够反转字符串。例如，我可以将“reverse a string”反转为“esrever a gnirts”。但我无法像“字符串反转”那样逐字反转。

void reverseString(char string[],char *start, char* end)
{

    char tmp; //temporary variable to swap values
    int count = 0;
    while(start<end)
    {
        if(*start==' ')
        {
            printf("found space count %d \n",count);
            reverseString(string,start-count,start);
        }
        tmp = *start;
        *start = *end;
        *end = tmp;
        *start++;
        *end--;
        count++; 
    }

    printf(" string %s \n", string); 
}

int main()
{
    char string[] = "reverse a string word by word";
    char *start =string;
    char *end =start+ strlen(string) -1;
    reverseString(string,start,end);
    return 0;
}

Answer 1

做你已经做过的事情，然后反转整个结果(不特殊处理空格)。