stepan
/
dynare
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

v4 parser NumericalConstants.{cc,hh}: optimization to avoid multiple IDs for the same constant 

git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1094 ac1d8469-bf42-47a9-8791-bf33cf982152
time-shift
sebastien 2006-11-23 19:10:41 +00:00
parent 56f54de49a
commit 9ff865e84b
2 changed files with 15 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
parser.src/NumericalConstants.cc
View File

@ -10,12 +10,13 @@ using namespace std;
#include "NumericalConstants.hh"
//------------------------------------------------------------------------------
vector<string> NumericalConstants::mNumericalConstants;
map<string, int, less<string> > NumericalConstants::numConstantsIndex;
//------------------------------------------------------------------------------
NumericalConstants::NumericalConstants()
{
mNumericalConstants.push_back("0.0");
mNumericalConstants.push_back("1.0");
AddConstant("0.0");
AddConstant("1.0");
}
//------------------------------------------------------------------------------
@ -27,12 +28,15 @@ NumericalConstants::~NumericalConstants()
//------------------------------------------------------------------------------
int NumericalConstants::AddConstant(string iConst)
{
if (iConst == "0.0")
return 0;
else if (iConst == "1.0")
return 1;
map<string, int, less<string> >::iterator iter = numConstantsIndex.find(iConst);
if (iter != numConstantsIndex.end())
return iter->second;
int id = (int) mNumericalConstants.size();
mNumericalConstants.push_back(iConst);
return (int) mNumericalConstants.size()-1;
numConstantsIndex[iConst] = id;
return id;
}
//------------------------------------------------------------------------------

3
parser.src/include/NumericalConstants.hh
View File

@ -9,6 +9,7 @@
//------------------------------------------------------------------------------
#include <string>
#include <vector>
#include <map>
//------------------------------------------------------------------------------
/*!
\class NumericalConstants
@ -19,6 +20,8 @@ class NumericalConstants
private :
/*! Vector of numerical constants */
static std::vector<std::string> mNumericalConstants;
//! Map matching constants to their id
static std::map<std::string, int, std::less<std::string> > numConstantsIndex;
public :
/*! Construcor */
NumericalConstants();