1 #include<stdlib.h> 2 #include<complex.h> 3 #include<stdio.h> 4 5 int main() 6 { 7 FILE *fp; 8 fp=fopen("test_data.dat","rb"); 9 int N=32,i=0; 10 complex x,*in; 11 in=malloc(sizeof(complex)*N); 12 if (fread(in,16,32*16,fp) != 32) 13 printf("error in reading from file failed\n"); 14 else{ 15 for(i=0;i<N;i++) 16 printf("%lf\t",*(in+i+0)); 17 } 18 return 0; 19 } it gives error "error in reading the file" whats wrong? ankit ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html