is_double_legal

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 header to Include
9 Reference

Description

Tests if a given double value is a legal double from the standpoint of processor.

Syntax

BOOL is_double_legal( double * pr )

Parameters

pr: [input] pointer to a double value whose legality should be tested.

Return

TRUE if legal, otherwise FALSE.

Examples

EX1

void is_double_legal_ex1()
{
        double * pr, dTest = (1.7e+307)*10000 ;

        pr = &dTest;
        bool bRet = is_double_legal(pr);
        if(true == bRet)
                out_str("The double is legal");
        else
                out_str("The double is illegal");
        
        dTest = 3.569;
        bRet = is_double_legal(pr);
        if(true == bRet)
                out_str("The double is legal");
        else
                out_str("The double is illegal");
}