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The C Programming Language, 2nd Edition, by Kernighan and Ritchie
Exercise 2.01 on page 36

Write a program to determine the ranges of char , short , int , and long variables, both signed and unsigned , by printing appropriate values from standard headers and by direct computation. Harder if you compute them: determine the ranges of the various floating-point types.

Category 0 Solution by Rick Dearman - with corrections by Russ Bobbitt marked /* RB */, by Stefan Farfeleder marked /* SF */, and by Ioannis A. Vranos - among the changes, radical changes on printf() messages were made, because Keith Thompson (kst-u@mib.org) realised that the messages were not much accurate - marked /* IV */

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


int main(void)
{
  printf("\nBits of type char: %d\n\n", CHAR_BIT);                     /* IV */

  printf("Maximum numeric value of type char: %d\n", CHAR_MAX);        /* IV */
  printf("Minimum numeric value of type char: %d\n\n", CHAR_MIN);      /* IV */

  printf("Maximum value of type signed char: %d\n", SCHAR_MAX);        /* IV */
  printf("Minimum value of type signed char: %d\n\n", SCHAR_MIN);      /* IV */

  printf("Maximum value of type unsigned char: %u\n\n", (unsigned) UCHAR_MAX);    /* SF */  /* IV */
  
  printf("Maximum value of type short: %d\n", SHRT_MAX);               /* IV */
  printf("Minimum value of type short: %d\n\n", SHRT_MIN);             /* IV */

  printf("Maximum value of type unsigned short: %u\n\n", (unsigned) USHRT_MAX);   /* SF */  /* IV */


  printf("Maximum value of type int: %d\n", INT_MAX);                  /* IV */
  printf("Minimum value of type int: %d\n\n", INT_MIN);                /* IV */

  printf("Maximum value of type unsigned int: %u\n\n", UINT_MAX);      /* RB */   /* IV */

  printf("Maximum value of type long: %ld\n", LONG_MAX);               /* RB */   /* IV */
  printf("Minimum value of type long: %ld\n\n", LONG_MIN);             /* RB */   /* IV */

  printf("Maximum value of type unsigned long: %lu\n\n", ULONG_MAX);   /* RB */   /* IV */


  return 0;
}