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livesinabox
livesinabox
Last Activity: May 31 '10, 06:54 AM
Joined: May 28 '10
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  • livesinabox
    replied to File Handling in C
    in C
    Thank you for you're help!
    And yes I was warned against using the gets function.. I changed it to scanf! Thank you!
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    • livesinabox
      started a topic File Handling in C
      in C

      File Handling in C

      Code:
      #include<stdio.h>
#include<string.h>
main()
{
FILE *f1,*f2;
char str[10];
f1=fopen("file1.dat","w");
printf("Enter contents of file 1 :");
gets(str);
fputs(str,f1);
fclose(f1);
f1=fopen("file1.dat","r");
f2=fopen("file2.dat","w");
fputs(str,f2);

fclose(f1);
      ...
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      • livesinabox
        replied to Trouble understanding "Double" Pointers.
        in C
        That helps! Thank You!
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        • livesinabox
          started a topic Trouble understanding "Double" Pointers.
          in C

          Trouble understanding "Double" Pointers.

          I am a student and I am having trouble understanding Dynamic Memory Allocation and the usage of Double Pointers.

          Code:
          int **A

A=(int **)malloc(r1*(sizeof(int*)));

for(i=0;i<r1;i++)
A[i]=(int *)malloc(sizeof(int)*c1)
          In the above snippet r1 and c1 refer to the number of rows and columns of a matrix A.

          My question : What does the malloc function do here? I know malloc()...
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          Last edited by Banfa; May 28 '10, 09:20 AM. Reason: Use this slash / for closing tags :-)
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