24 lines
564 B
C
24 lines
564 B
C
// Program demonstrating strange effects of mixing C std and Unix
|
|
// system I/O. Typical output is
|
|
//
|
|
// FIRST: 1
|
|
// NEXT: 41 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053
|
|
//
|
|
// which is explainable with internal buffering of C std I/O
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
int main(int argc, char *argv[]){
|
|
|
|
FILE *input = fopen("3K.txt","r");
|
|
int first;
|
|
fscanf(input, "%d", &first);
|
|
printf("FIRST: %d\n",first);
|
|
|
|
int fd = fileno(input);
|
|
char *buf[64];
|
|
read(fd, buf, 63);
|
|
buf[127] = '\0';
|
|
printf("NEXT: %s\n",buf);
|
|
|
|
return 0;
|
|
}
|