1.ranges-of-variables.c

#include <stdio.h>
#include <limits.h>

main()
{
	printf("From limits.h:\n");	
	printf("CHAR_BIT: %d\n", CHAR_BIT);
	printf("CHAR_MAX: %d\n", CHAR_MAX);
	printf("CHAR_MIN: %d\n", CHAR_MIN);
	printf("INT_MAX: %d\n", INT_MAX);
	printf("INT_MIN: %d\n", INT_MIN);
	printf("LONG_MAX: %d\n", LONG_MAX);
	printf("LONG_MIN: %d\n", LONG_MIN);
	printf("SCHAR_MAX: %d\n", SCHAR_MAX);
	printf("SCHAR_MIN: %d\n", SCHAR_MIN);
	printf("SHRT_MAX: %d\n", SHRT_MAX);
	printf("SHRT_MIN: %d\n", SHRT_MIN);
	printf("UCHAR_MAX: %d\n", UCHAR_MAX);
	printf("UINT_MAX: %u\n", UINT_MAX);
	printf("ULONG_MAX: %u\n", ULONG_MAX);
	printf("USHRT_MAX: %u\n", USHRT_MAX);

	printf("\nFrom calc:\n");

	/*signed types*/
	printf("signed char min=%d\n",-(char)((unsigned char) ~0 >> 1));
	printf("signed char max=%d\n",(char)((unsigned char) ~0 >> 1));
	printf("signed int min=%d\n",-(int)((unsigned int) ~0 >> 1));
	printf("signed int max=%d\n",(int)((unsigned int) ~0 >> 1));
	printf("signed short min=%d\n",-(short)((unsigned short) ~0 >> 1));
	printf("signed short max=%d\n",(short)((unsigned short) ~0 >> 1));
	printf("signed long min=%d\n",-(long)((unsigned long) ~0 >> 1));
	printf("signed long max=%d\n",(long)((unsigned long) ~0 >> 1));

	/*unsigned types*/
	printf("unsigned char max=%u\n",((unsigned char) ~0 >> 1));
	printf("unsigned int max=%u\n",((unsigned int) ~0 >> 1));
	printf("unsigned long max=%lu\n",((unsigned int) ~0 >> 1));
	printf("unsigned short max=%u\n",((unsigned int) ~0 >> 1));

}