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numstr.h
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numstr.h
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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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/>.
*
*/
/*
* This code is based on the CRAB engine
*
* Copyright (c) Arvind Raja Yadav
*
* Licensed under MIT
*
*/
#ifndef CRAB_NUMSTR_H
#define CRAB_NUMSTR_H
#include "crab/common_header.h"
namespace Crab {
template<typename T>
Common::String NumberToString(T Number) {
Common::String res;
const T Num = Number;
if (Number == 0) {
return "0";
}
if (Number < 0)
Number = -Number;
while (Number > 0) {
T d = Number % 10;
res += ('0' + d);
Number /= 10;
}
if (Num < 0)
res += "-";
// reverse string
Common::String revStr;
for (int i = res.size() - 1; i >= 0; i--)
revStr += res[i];
return revStr;
}
template<typename T>
inline T StringToNumber(char *Text) {
int res = 0;
if (sscanf(Text, "%d", &res) > 0)
return static_cast<T>(res); // static cast to deal with signed to unsigned conversions
return 0;
}
template<>
inline float StringToNumber<float>(char *Text) {
float res = 0.0f;
if (sscanf(Text, "%f", &res) > 0)
return res;
return 0.0f;
}
template<>
inline double StringToNumber<double>(char *Text) {
double res = 0.0;
if (sscanf(Text, "%lf", &res) > 0)
return res;
return 0.0;
}
template<typename T>
T StringToNumber(const Common::String &Text) {
return StringToNumber<T>(const_cast<char *>(Text.c_str()));
}
template<typename T>
void GetPoint(T &v, Common::String &coords) {
int comma = coords.findFirstOf(',');
v.x = StringToNumber<int>(coords.substr(0, comma));
v.y = StringToNumber<int>(coords.substr(comma + 1));
}
} // End of namespace Crab
#endif // CRAB_NUMSTR_H