#Learning to use malloc and realloc having issues.

8 messages · Page 1 of 1 (latest)

normal tusk
#

Why does it reallocate the first 10 indexes as well?? Tutorial I've been following doesn't have this issue and I can't see with my own eye why it's not working so could someone take a look and see if they could point me in the write direction.

test.PNG test1.PNG
opaque mirageBOT
#

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normal tusk
#

#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>

int main() {
int a_size = 10;
int *a = NULL;

a = malloc(a_size * sizeof(int));
        
if(a == NULL) {
    fprintf(stderr, "Error allocating memory!\n");
    exit(1);
}

for(int i=0; i<a_size; i++) {
    a[i] = i*10;
}


int *tmp = NULL;
int new_a_size = a_size*2;

tmp = realloc(a,new_a_size*sizeof(int));

if (tmp==NULL){
    fprintf(stderr,"Erorr realoccating a!\n");
    exit(1);
}

a = tmp;

for (int i=10;i<new_a_size;i++){
    a[i]=i*10;
}

for (int i=0;i<new_a_size;i++){
    printf("a[%d]: %d\n");    
}

free(a)

return 0;

}

#

code

#

!solved never mind I forgot to put in the variables I wanted to subsite for the format modifiers my bad

opaque mirageBOT
normal tusk
#

!solved

opaque mirageBOT
#

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