Be careful when storing pointers inside unions

This tip submitted by singam kiran reddy on 2006-10-26 00:54:17. It has been viewed 17965 times.
Rating of 6.4 with 141 votes

Be carefull while using pointers inside unions.

Take following scenario

union
{
char *a;
int *b;
} c;

c.a=(char*)malloc(sizeof(char));
c.b=(int*)malloc(sizeof(int));

Here memory leak will occur because in future you can not get the address stored in a to free it!

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