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uLib/src/ltk/test_comma.h
2018-04-17 15:39:10 +02:00

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/*//////////////////////////////////////////////////////////////////////////////
// CMT Cosmic Muon Tomography project //////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
Copyright (c) 2014, Universita' degli Studi di Padova, INFN sez. di Padova
All rights reserved
Authors: Andrea Rigoni Garola < andrea.rigoni@pd.infn.it >
------------------------------------------------------------------
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3.0 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library.
//////////////////////////////////////////////////////////////////////////////*/
/*
* File: test_comma.h
* Author: andrea
*
* Created on May 24, 2012, 4:47 PM
*/
#ifndef TEST_COMMA_H
#define TEST_COMMA_H
#include <assert.h>
struct Vector3
{
union
{
struct { float x, y, z; };
float data[3];
};
struct CommaAssign;
CommaAssign operator=(float _x)
{
x = _x;
return CommaAssign(this,1);
}
struct CommaAssign
{
Vector3 *vec3;
int index;
explicit CommaAssign(Vector3 *vec3, int index) : vec3(vec3) {
this->index = index;
}
CommaAssign operator, (float f) {
vec3->data[index] = f;
return CommaAssign(vec3, index + 1);
}
};
};
struct Container
{
union
{
struct { float x, y, z; };
float data[3];
};
inline float *getBuffer() {
return this->data;
}
template <typename T, unsigned int size> class CommaAssign
{
private:
T *container;
int index;
public:
inline explicit CommaAssign(T *container, float s) : container(container) {
this->index = 0;
this->container->getBuffer()[0] = s;
}
inline CommaAssign& operator, (float s) {
this->index++;
assert(index < size);
this->container->getBuffer()[this->index] = s;
return *this;
}
};
CommaAssign<Container, 3> operator=(float s) {
return CommaAssign<Container, 3 > (this, s);
}
};
#endif /* TEST_COMMA_H */