code. compile. run. debug. share.
#include<stdio.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<fcntl.h>
#include<sys/uio.h>
#include<unistd.h>
#include<string.h>
int main() {
int fd, fi, i;
char *d[] = {"India.\n","Blog.\n"},a[10],b[10];
struct iovec buf[2], buff[2];
fd = open("buf.txt",O_CREAT|O_WRONLY|O_TRUNC,0666);
if(fd < 0) {
printf("open error\n");
return -1;
}
for(i=0;i<2;i++){
buf[i].iov_base = d[i];
buf[i].iov_len = strlen(d[i])+1;
}
writev(fd,buf,2);
close(fd);
fi = open("test.txt",O_RDONLY);
if(fi < 0) {
printf("open error\n");
return -1;
}
buff[0].iov_base = a;
buff[0].iov_len = sizeof(a);
buff[1].iov_base = b;
buff[1].iov_len = sizeof(b);
readv(fi,buff,2);
for(i=0;i<2;i++) {
printf("%s\n",(char *)buff[i].iov_base);
}
close(fi);
return 0;
}
India.
Blog.
India
Welcome
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
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