fmtnum.h

来自「crack modeling with xfem」· C头文件 代码 · 共 45 行

/* 2008 (c) Dorival M. Pedroso */

#ifndef MPM_FMTNUM_H
#define MPM_FMTNUM_H

// STL
#include <iostream>
#include <iomanip>

/** Formatting Numbers via STL streams. */
struct FmtNum
{
	bool BoolAlpha;  ///< Format output as a boolean?
	bool Integer;    ///< Format output as an integer?
	bool Scientific; ///< Format output as a scientific number?
	int  Width;      ///< Width of the output
	int  Precision;  ///< Precision for floating point numbers
};

//                 bool  integ  scien   w   p
FmtNum _a     = {  true, false, false,  0,  0 }; ///< Boolean
FmtNum _3     = { false,  true, false,  3,  0 }; ///< Integer
FmtNum _4     = { false,  true, false,  4,  0 }; ///< Integer
FmtNum _6     = { false,  true, false,  6,  0 }; ///< Integer
FmtNum _8     = { false,  true, false,  8,  0 }; ///< Integer
FmtNum _3s    = { false, false,  true,  0,  3 }; ///< Scientific
FmtNum _8s    = { false, false,  true,  0,  8 }; ///< Scientific
FmtNum _4_2   = { false, false, false,  4,  2 }; ///< General
FmtNum _6_3   = { false, false, false,  6,  3 }; ///< General
FmtNum _12_6  = { false, false, false, 12,  6 }; ///< General
FmtNum _20_15 = { false, false, false, 20, 15 }; ///< General

/** Format the output. */
std::ostream & operator<< (std::ostream & os, FmtNum const & FN)
{
	     if (FN.BoolAlpha)  { os<<" "<<std::setw(6)<<std::boolalpha; return os; }
	else if (FN.Integer)    { os<<" "<<std::setw(FN.Width); return os; }
	else if (FN.Scientific) { os<<" "<<std::setw(FN.Precision+9)<<std::scientific<<std::setprecision(FN.Precision); return os; } // add 9
	else                    { os<<" "<<std::setw(FN.Width+1)<<std::fixed<<std::setprecision(FN.Precision); return os; } // add 1 (for sign)
}

#endif // MPM_FMTNUM_H

/* 2008 (c) Dorival M. Pedroso */