字符串倒序（the c programming）

把没输入一行的字符串倒叙。字符串倒序

#include <iostream>
using namespace std;

#define MAX_LINE 1024

int getline(char s[], int lim);
int reverse(char s[]);

int main()
{
	char line[MAX_LINE];
	while (getline(line, sizeof(line))>0)
	{
		reverse(line);
		printf("%s\n",line);
	}
	return 0;
}

int reverse(char s[])
{
	int i, j;
	char temp;
	for(j = 0; s[j] != '\0'; j++)
	{
		;
	}//求j的值
	j--;
	for(i = 0; i < j; i++, j--)
	{
		temp = s[i];
		s[i] = s[j];
		s[j] = temp;
	}
	return 0;
}

int getline(char s[], int lim)
{
	int c, i;

	for(i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; ++i)
	{
		s[i] = c;
	}

	if(c == '\n')
	{
		s[i++] = c;
	}

	s[i] = '\0';

	return i;

}