I got a fopen was declared deprecated warning

[pochipp]

Hi.. All
I got a problem in writing this program
becoz I successfullly compiled the file
but I cannot run the program since there will be an error when I run it.
So I checked again... And there is only 1 warning left which was "fopen was declared deprecated" <--- maybe this is why I couldn't run the program successfullly?
I kinda noob in programming ... So I really need some help here
So Here I include my code here for anyone who can help me...
And thank you very much....

[code=cpp]
#include <iostream>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <math.h>
#include<malloc .h>
#include<fstrea m>
#include<string .h>
#include<time.h >
using namespace std;

/* lots and lots and lots of code snipped */
// Initialization of X, H, and G

if (data = fopen(FileSave, "w")){
// Begin - Students
i=0;

for(count1=0; count1<N; ++count1){
for(count2=0; count2<N; ++count2){
for(count3=0; count3<L; ++ count3){

H0[count1][count2][count3] = randomco();
H1[count1][count2][count3] = randomco();
G0[count1][count2][count3] = randomco();
G1[count1][count2][count3] = randomco();
}
}
}
for(int count1=0; count1<M; ++count1){
X[count1] = randomco();
}

/* more code removed */

int main()
{
MatrixFIR();
}[/code]

[sicarie]

Hi.. All
I got a problem in writing this program
becoz I successfullly compiled the file
but I cannot run the program since there will be an error when I run it.
So I checked again... And there is only 1 warning left which was "fopen was declared deprecated" <--- maybe this is why I couldn't run the program successfullly?
I kinda noob in programming ... So I really need some help here
So Here I include my code here for anyone who can help me...
And thank you very much....

[code=cpp]
#include <iostream>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <math.h>
#include<malloc .h>
#include<fstrea m>
#include<string .h>
#include<time.h >
using namespace std;

/* lots and lots and lots of code snipped */
// Initialization of X, H, and G

if (data = fopen(FileSave, "w")){
// Begin - Students
i=0;

for(count1=0; count1<N; ++count1){
for(count2=0; count2<N; ++count2){
for(count3=0; count3<L; ++ count3){

H0[count1][count2][count3] = randomco();
H1[count1][count2][count3] = randomco();
G0[count1][count2][count3] = randomco();
G1[count1][count2][count3] = randomco();
}
}
}
for(int count1=0; count1<M; ++count1){
X[count1] = randomco();
}

/* more code removed */

int main()
{
MatrixFIR();
}[/code]

Yes, fopen() is a C function. with C++ you declare a file stream, either input or output, so something like:

[code=cpp]
#include <fstream>
/* .
.
.
*/
ofstream f_outputFile;
f_outputFile.op en("myfile.txt" );
f_outputFile << variableWritten ToFile;
f_outputFile.cl ose();
/* .
.
.
*/
[/code]

Also, even if you fix that, your program won't compile as you declare int main() but then return nothing at the end of the main function (standard is return 0;).

[pochipp]

Yes, fopen() is a C function. with C++ you declare a file stream, either input or output, so something like:

[code=cpp]
#include <fstream>
/* .
.
.
*/
ofstream f_outputFile;
f_outputFile.op en("myfile.txt" );
f_outputFile << variableWritten ToFile;
f_outputFile.cl ose();
/* .
.
.
*/
[/code]

Also, even if you fix that, your program won't compile as you declare int main() but then return nothing at the end of the main function (standard is return 0;).

Thank you for your reply... ^^
But then what should I return? at int main() ???

[Laharl]

Make the last statement in main() return 0; because if it reaches that point it has completed without error and 0 is the exit code for "no errors".