字符串的反转

#include<iostream>    //字符串的反转
using namespace std;

void swap( char &cpara1, char &cpara2)
{ 
	char temp;
	temp = cpara1;
	cpara1 = cpara2;
	cpara2 = temp;
}

void RevStr( char *src)
{ 
	char *start=src,*end=src,*ptr=src;
	while(*ptr++!='')
	{
         if(*ptr==' '||*ptr=='')
		 {
            end=ptr-1;
			while(start<end)
				swap(*start++,*end--);
	
			start=end=ptr+1;
		 }
	}
	start=src;
    end=ptr-2;
	while(start<end)
	{
		swap(*start++,*end--);
	}
	

}

void RevStrOther( char *src)
{
    char *start=src,*end=src,*ptr=src;
	while(*ptr++!='');
	end=ptr-2;
	while(start<end)
	{
		swap(*start++,*end--);
	}
    start=ptr=src;
	while(*ptr++!='')
	{
         if(*ptr==' '||*ptr=='')
		 {
            end=ptr-1;
			while(start<end)
				swap(*start++,*end--);
	
			start=end=ptr+1;
		 }
	}
}
int main()
{   
    char str[] = "wang dong yu";
	//区别 char *str = "wang dong yu";
	RevStrOther(str);
	//RevStr(str);
	cout<<str<<endl;
	return 0;
}