[aminalaouti]

hi everyone ,

I want to know if my data file (containing 20,000 values) is being read by the udf. To do this, I've created a small program that reads the data from the data.txt file and prints it to another file (data1.txt).
My program compiles well, the library is created and I've hooked my udf to execute on demand.
The data.txt file contains 4 values:
0.2
0.2
0.1
0.1
results on file data1.txt are :
0.000 0.000 0.000 0.000

????????? where is the problem????

this is my udf:

#include "udf.h"
double coef[4];


DEFINE_ON_DEMAND(lire)
{

FILE* rfile;
FILE* rfile1;

rfile = fopen("C:\\Codes\\data.txt", "r");
rfile1 = fopen("C:\\Codes\\data1.txt", "w");
int i;
i = 0;
for (i = 0; i <4; i++)
{
fscanf(rfile, "%f", &coef[i]);
fprintf(rfile1, "%f", coef[i]);
}
fclose(rfile);
fclose(rfile1);
}