smesh/src/DriverUNV/UNV_Utilities.hxx
2005-06-14 12:36:44 +00:00

105 lines
2.1 KiB
C++

// Copyright (C) 2003 CEA/DEN, EDF R&D
//
//
//
// File : VISU_DatConvertor.hxx
// Author : Alexey PETROV
// Module : VISU
#ifndef MED_Utilities_HeaderFile
#define MED_Utilities_HeaderFile
#include <iostream>
#include <sstream>
#include <string>
#include <stdexcept>
#include <cassert>
namespace UNV{
using namespace std;
class PrefixPrinter{
static int myCounter;
public:
PrefixPrinter();
~PrefixPrinter();
static string GetPrefix();
};
/**
* @returns \p false when error occured, \p true otherwise.
* Adjusts the \p in_stream to the beginning of the
* dataset \p ds_name.
*/
inline bool beginning_of_dataset(std::istream& in_file, const std::string& ds_name)
{
assert (in_file.good());
assert (!ds_name.empty());
std::string olds, news;
while(true){
in_file >> olds >> news;
/*
* a "-1" followed by a number means the beginning of a dataset
* stop combing at the end of the file
*/
while( ((olds != "-1") || (news == "-1") ) && !in_file.eof() ){
olds = news;
in_file >> news;
}
if(in_file.eof())
return false;
if (news == ds_name)
return true;
}
// should never end up here
return false;
}
/**
* Method for converting exponential notation
* from "D" to "e", for example
* \p 3.141592654D+00 \p --> \p 3.141592654e+00
* in order to make it readable for C++.
*/
inline double D_to_e(std::string& number)
{
/* find "D" in string, start looking at
* 6th element, to improve speed.
* We dont expect a "D" earlier
*/
const int position = number.find("D",6);
if(position != std::string::npos){
number.replace(position, 1, "e");
}
return atof (number.c_str());
}
};
#ifndef MESSAGE
#define MESSAGE(msg) std::cout<<__FILE__<<"["<<__LINE__<<"]::"<<msg<<endl;
#define BEGMSG(msg) std::cout<<UNV::PrefixPrinter::GetPrefix()<<msg
#define ADDMSG(msg) std::cout<<msg
#endif
#ifndef EXCEPTION
#define EXCEPTION(TYPE, MSG) {\
std::ostringstream aStream;\
aStream<<__FILE__<<"["<<__LINE__<<"]::"<<MSG;\
throw TYPE(aStream.str());\
}
#endif
#endif