line.c

unix环境下实现的cmm语言编译器

/*line.c: 统计输入的行数*/
int getchar(void);
int printf(char *fmt, int);
int main()
{
	int c, nl;
	
	nl = 0;
	while ((c = getchar()) != -1)
		if (c == '\n')
			nl = nl + 1;
	printf("%d\n", nl);
	return 0;
}