c++拷贝文件

c++拷贝文件

#include<stdio.h>
//cp src dest
int main(int argc,char *argv[])
{
	FILE *desc,*src;
	char buf[4096];
	if(argc <3){
		printf("./mycp srcfile destfile\n");
	}

	src=fopen(argv[1],"r");
	dest=fopen(argv[2],"w");
	//if(src== NULL || desc == NULL ){
	if(!src|| !dest){
		printf("open file err\n");
		return -1;
	}
	while (fgets(buf,sizeof(buf),src)!=NULL)
		fputs(buf,dest);
	fclose(src);
	fclose(dest);
	return 0;
}