Thread: malloc and realloc

hello,

Code:

char *str;
str = (char *) malloc (sizeof (char) * strlen("hello"));
strcpy(str, "hello");
str = (char *) malloc (sizeof (char) * strlen("bye bye"));
strcpy(str, "bye bye");
g_free(str);

is the above code memory OK or the continuous allocation of malloc will lead to a memory leak problem (imagine i have a big loop of reading strings)? in other words is the use of malloc correct or do i need to use realloc? as i think the only difference between the two is that malloc is destructive without copying the previous contents while realloc is also destructive but copies the old contents if necessary

cheers