/* This program tries to demonstrate two different types of dynamic
 * memory allocation using strings.
 */
#include <stdio.h>
#include <string.h>

int main( void ) {
    char * s1;
    int i;
    
    /* Method 1 */
    s1 = (char *) malloc(sizeof(char)*4);
    if ( s1 == NULL ) {
	fprintf(stderr,"Error! Could not allocate space\n");
	exit(-2);
    } /* if */
    strcpy(s1, "abc");
    
    { /* Within a new block statement, a local variable can be declared. */
	char s2[4] = "abc";
	
	if ( strcmp(s1, s2) == 0 ) {
	    printf("s1 = %s equals s2 = %s\n", s1, s2);
	} else {
	    printf("s1 = %s does not equal s2 = %s\n", s1, s2);
	} /* if */
	
    } /* block */
    free( s1 );
}