Thread: Doesn't work to save my arrays to a text file!

Hello.

Recently started to learn some basic programming.

Problem: There is a file, which we will call ultra.dat.
This numbers.dat have lots of numbers and combinations with arrays of [151][201]. I have so far written a code that will read the text file and print them on the screen. This have worked so far and it prints all the numbers exactly in the numbers.dat. Now, the next step for it is to re-arrange the combinations and put them in arrays of [151][201] and save the file named ultra1.dat.

Problem here is that it doesnt put them in arrays. I have tried so many ways but it simply just don't work. How do I accomplish it?

thanks!

Code:

#include <stdio.h>
int main (void){
FILE *ultra;
FILE *ultraskriv;

int tal, antal,i,j;
int Matris[151][201];

    ultra=fopen("ultra.dat", "r");

        for(i=1;i<=(151);i++)
            for(j=1;j<=(201);j++){
                fscanf(ultra, "%d", &antal);
                    printf("%5d", antal);

    }
ultraskriv=fopen("ultra1.dat","w");
        for(i=1;i<=(151);i++){
        for(j=1;j<=(201);j++)
        fprintf(ultraskriv,"%d", &Matris[i][j]);
        fclose(ultraskriv);
        }

    fclose(ultra);


}

Try:

Code:

for(i=0;i<151;i++)
            for(j=0;j<201;j++){

Originally Posted by BillyTKid

Try:

Code:

for(i=0;i<151;i++)
            for(j=0;j<201;j++){

Thanks for your effort but this doesn't solve the problem.

Want me to upload the dat file?

I am working on arrays ? I want to find 3 consecutive occurences of 0xaa in my array.
Array starting address (0x100 to 0x400).
all i need to do to determine how much stack has been used is to “walk” through the memory, starting at the top (0x4FF), until we find an area containing 0xAA. Now, a single 0xAA could still be in the stack, so we will require 3 consecutive 0xAA values to determine that the top of the stack has been reached. Then we need to account for the “extra” 0xAA values we just read. Simple!


utility finds the first three occurances of the prewritten
test pattern 0xAA.

Any help?

Originally Posted by Sipher

You mean you don't get the output you expect or that you don't get any output?

I don't get the expected output. Sorry if I didn't clarify that :-) I get like 265512, 265516, 265520 etc up to 40 pages or so... which is not the expected output.

Originally Posted by Sipher

Code:

Between, is there any neccesity to add Matris[151][201]=0; under

Adding that will certainly crash your program!

You're right :-)

Originally Posted by Sipher

Then i repeat, add the necessary spaces and/or newlines in each fprintf call!

I'm sorry if I'm starting to get tedious, but what do you mean my friend?

Do you mean newline = \n?