types-length.c

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

#define STRFY(A) #A
#define SIZEOFI(T,MIN,MAX)  printf("%-20s\t%5zu\t%20lld\t%20llu\n", STRFY(T), sizeof(T), (long long)MIN, (unsigned long long)MAX);
#define SIZEOFFP(T,MIN,MAX,RES)  printf("%-20s\t%5zu\t%20Lg\t%20Lg\t%20Lg\n", STRFY(T), sizeof(T), (long double)MIN, (long double)MAX, (long double)RES);

void main() {
  enum enu {a};

  printf("%-20s\t%5s\t%20s\t%20s\t%20s\n", "GCC "__VERSION__, "Size", "Min", "Max", "Res");
  SIZEOFI(enum enu, 0, pow(2, 8*sizeof(enum enu))-1)
  SIZEOFI(char, CHAR_MIN, CHAR_MAX)
  SIZEOFI(signed char, SCHAR_MIN, SCHAR_MAX)
  SIZEOFI(unsigned char, 0, UCHAR_MAX)
  SIZEOFI(short int, SHRT_MIN, SHRT_MAX)
  SIZEOFI(unsigned short int, 0, USHRT_MAX)
  SIZEOFI(int, INT_MIN, INT_MAX)
  SIZEOFI(unsigned int, 0, UINT_MAX)
  SIZEOFI(long int, LONG_MIN, LONG_MAX)
  SIZEOFI(unsigned long int, 0, ULONG_MAX)
  SIZEOFI(long long int, LLONG_MIN, LLONG_MAX)
  SIZEOFI(unsigned long long int, 0, ULLONG_MAX)
  SIZEOFFP(float, FLT_MIN, FLT_MAX, FLT_EPSILON)
  SIZEOFFP(double, DBL_MIN, DBL_MAX, DBL_EPSILON)
  SIZEOFFP(long double, LDBL_MIN, LDBL_MAX, LDBL_EPSILON)
  return;
}