// sample-prog.c
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>

extern void __gcov_reset(void);
extern void __gcov_flush(void);
extern void __gcov_dump( void);

int main()
{
    unsigned char c;
    int result;
    unsigned char data[]={127,49,255,255};
	c = '5';

	do {
   
		c = getchar();
		result = isalnum(c);
		printf("When %c is passed, return value is %d\n", c, result);

		if(c == 'g')
			__gcov_dump();
		else if(c == 'r')
			__gcov_reset();
		
	}while(c != 'c');
    
	return 0;
}