Finding the limits : Variable Size and Limitation « Language « C Tutorial

Home
C Tutorial
1.Language
2.Data Type
3.String
4.printf scanf
5.Operator
6.Statement
7.Array
8.Function
9.Structure
10.Pointer
11.Memory
12.Preprocessor
13.File
14.Data Structure
15.Search Sort
16.Wide Character String
17.assert.h
18.ctype.h
19.math.h
20.setjmp.h
21.signal.h
22.stdio.h
23.stdlib.h
24.string.h
25.time.h
26.wctype.h
C / ANSI-C
C++
C++ Tutorial
Visual C++ .NET
C Tutorial » Language » Variable Size and Limitation 
1.7.1.Finding the limits
#include <stdio.h>      
#include <limits.h>   
#include <float.h>    

int main(void)
{
  printf("Variables of type char store values from %d to %d", CHAR_MIN, CHAR_MAX);
  printf("\nVariables of type unsigned char store values from 0 to %u", UCHAR_MAX);
  printf("\nVariables of type short store values from %d to %d", SHRT_MIN, SHRT_MAX);
  printf("\nVariables of type unsigned short store values from 0 to %u",USHRT_MAX);
  printf("\nVariables of type int store values from %d to %d", INT_MIN, INT_MAX);
  printf("\nVariables of type unsigned int store values from 0 to %u", UINT_MAX);
  printf("\nVariables of type long store values from %ld to %ld", LONG_MIN, LONG_MAX);
  printf("\nVariables of type unsigned long store values from 0 to %lu", ULONG_MAX);
  printf("\nVariables of type long long store values from %lld to %lld", LLONG_MIN, LLONG_MAX);
  printf("\nVariables of type unsigned long long store values from 0 to %llu", ULLONG_MAX);
  printf("\n\nThe size of the smallest non-zero value of type float is %.3e", FLT_MIN);
  printf("\nThe size of the largest value of type float is %.3e", FLT_MAX);
  printf("\nThe size of the smallest non-zero value of type double is %.3e", DBL_MIN);
  printf("\nThe size of the largest value of type double is %.3e", DBL_MAX);
  printf("\nThe size of the smallest non-zero value of type long double is %.3Le", LDBL_MIN);
  printf("\nThe size of the largest value of type long double is %.3Le\n", LDBL_MAX);
  printf("\nVariables of type float provide %u decimal digits precision.",  FLT_DIG);
  printf("\nVariables of type double provide %u decimal digits precision.",  DBL_DIG);
  printf("\nVariables of type long double provide %u decimal digits precision.", LDBL_DIG);
  return 0;
}
Variables of type char store values from -128 to 127
     Variables of type unsigned char store values from 0 to 255
     Variables of type short store values from -32768 to 32767
     Variables of type unsigned short store values from 0 to 65535
     Variables of type int store values from -2147483648 to 2147483647
     Variables of type unsigned int store values from 0 to 4294967295
     Variables of type long store values from -2147483648 to 2147483647
     Variables of type unsigned long store values from 0 to 4294967295
     Variables of type long long store values from -9223372036854775808 to 9223372036854775807
     Variables of type unsigned long long store values from 0 to 18446744073709551615
     
     The size of the smallest non-zero value of type float is 1.175e-38
     The size of the largest value of type float is 3.403e+38
     The size of the smallest non-zero value of type double is 2.225e-308
     The size of the largest value of type double is 1.798e+308
     The size of the smallest non-zero value of type long double is 3.362e-4932
     The size of the largest value of type long double is 1.190e+4932
     
     Variables of type float provide 6 decimal digits precision.
     Variables of type double provide 15 decimal digits precision.
     Variables of type long double provide 18 decimal digits precision.
1.7.Variable Size and Limitation
1.7.1.Finding the limits
1.7.2.Finding the size of a type
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.