C program to reverse the words in a string (Sentence) using pointers only.

gistfile1.txt

#include <stdio.h>
#include <stdlib.h>
void swap(char *c1, char *c2){
	char temp;
	temp = *c1;
	*c1 = *c2;
	*c2 = temp;
}

int main(){
	char string[] = "This is";
	char *start = string;
	char *end = start;
	char *end2 = end;
	while(*end != '\0'){
		while(*end !=' ' && *end != '\0'){end++;end2++;}
		end--;
		while(start<end){
			swap(start,end);
			start++;end--;
		}
		end2++;
		start = end = end2;
	}
	printf("%s",string);
}