GTools.hpp
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/***************************************************************************
* GTools.hpp - GammaLib tools *
* ----------------------------------------------------------------------- *
* copyright (C) 2008-2012 by Juergen Knoedlseder *
* ----------------------------------------------------------------------- *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
***************************************************************************/
/**
* @file GTools.hpp
* @brief Gammalib tools definition
* @author Juergen Knoedlseder
*/
#ifndef GTOOLS_HPP
#define GTOOLS_HPP
/* __ Includes ___________________________________________________________ */
#include <vector>
#include <string>
#include <cmath>
/* __ Namespaces _________________________________________________________ */
/* __ Constants __________________________________________________________ */
const double pi = 3.141592653589793238462643383279502884197;
const double twopi = 6.283185307179586476925286766559005768394;
const double fourpi = 12.56637061435917295385057353311801153679;
const double pihalf = 1.570796326794896619231321691639751442099;
const double inv_pihalf = 0.6366197723675813430755350534900574;
const double inv_sqrt4pi = 0.2820947917738781434740397257803862929220;
const double pi2 = pi*pi;
const double deg2rad = 0.0174532925199432954743717;
const double rad2deg = 57.295779513082322864647722;
const double ln2 = 0.6931471805599453094172321214581766;
const double ln10 = 2.3025850929940456840179914546843642;
const double inv_ln2 = 1.4426950408889634073599246810018921;
const double onethird = 1.0/3.0;
const double twothird = 2.0/3.0;
const double fourthird = 4.0/3.0;
const double sqrt_onehalf = sqrt(1.0/2.0);
const double sqrt_pihalf = sqrt(pihalf);
const double sqrt_two = sqrt(2.0);
const double MeV2erg = 1.6021765e-6;
const double erg2MeV = 624150.96;
const double pc2cm = 3.08568025e18;
const double sec_in_day = 86400.0;
/* __ Prototypes ________________________________________________________ */
std::string strip_whitespace(const std::string& arg);
std::string strip_chars(const std::string& arg,
const std::string& chars);
std::string expand_env(const std::string& arg);
std::string str(const unsigned short int& value);
std::string str(const unsigned int& value);
std::string str(const unsigned long int& value);
std::string str(const unsigned long long int& value);
std::string str(const short int& value);
std::string str(const int& value);
std::string str(const long int& value);
std::string str(const long long int& value);
std::string str(const float& value);
std::string str(const double& value);
char* tochar(const std::string& arg);
short toshort(const std::string& arg);
unsigned short toushort(const std::string& arg);
int toint(const std::string& arg);
unsigned int touint(const std::string& arg);
long tolong(const std::string& arg);
unsigned long toulong(const std::string& arg);
long long tolonglong(const std::string& arg);
unsigned long long toulonglong(const std::string& arg);
float tofloat(const std::string& arg);
double todouble(const std::string& arg);
std::string toupper(const std::string& s);
std::string tolower(const std::string& s);
std::vector<std::string> split(const std::string& s, const std::string& sep);
std::string fill(const std::string& s, int n);
std::string left(const std::string& s, int n, char c = ' ');
std::string right(const std::string& s, int n, char c = ' ');
std::string center(const std::string& s, int n, char c = ' ');
std::string parformat(const std::string& s, const int& indent = 0);
double modulo(double v1, double v2);
double arccos(const double& arg);
double plaw_photon_flux(const double& emin,
const double& emax,
const double& epivot,
const double& gamma);
double plaw_energy_flux(const double& emin,
const double& emax,
const double& epivot,
const double& gamma);
bool file_exists(const std::string& filename);
bool isinfinite(double x);
bool isnotanumber(double x);
#endif /* GTOOLS_HPP */