[Dev-C++] Doubt about pass pointer to int.
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[Dev-C++] Doubt about pass pointer to int.
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From: Vinicius <cvi...@uo...> - 2004-02-29 22:07:31
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Hello,
The output of the code below is:
number = 10
number = 0 (or other number except 15)
Why the output of the second 'number' is not 15? Why the 'number' address is
not changed?
Thanks in advance, Vinicius.
#include <stdio.h>
#include <stdlib.h>
void change_int(int *num);
int main(void)
{
int *number;
number = (int *) malloc(sizeof(int));
*number = 10;
printf("number = %d\n", *number);
change_int(number);
printf("number = %d\n", *number);
free(number);
system("PAUSE");
return 0;
}
void change_int(int *num)
{
int *temp;
temp = num;
num = (int *) malloc(sizeof(int));
*num = 15;
free(temp);
}
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