How to get the limit on it's range of the double type?

Discussion in 'C Programming' started by Viery, Mar 6, 2004.

  1. Viery

    Viery Guest

    I want to write some codes to get the limit of range in real
    Could you please give me some sample? Because I am not familiar
    with C language.

    Viery, Mar 6, 2004
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  2. The values are defined by macros belonging to <float.h>
    Emmanuel Delahaye, Mar 6, 2004
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  3. Viery

    Malcolm Guest

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

    int main(void)
    printf("Biggest double %g\n", DBL_MAX);
    printf("Smallest fraction %g\n", DBL_MIN);
    printf("Decimal precison %d digits\n", (int) DBL_DIG);
    return 0;
    Malcolm, Mar 6, 2004
  4. Viery

    Joe Wright Guest

    Why the cast? DBL_DIG is int.
    Joe Wright, Mar 6, 2004
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