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PAL10173. Protect computeParamByFunc() against divisionby zero when f(0)=0 and against infinite loop

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eap 2005-11-15 08:53:15 +00:00
parent 773894ff04
commit 2df8c2d513
1 changed files with 8 additions and 1 deletions
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9
src/StdMeshers/StdMeshers_Regular_1D.cxx
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@ -426,6 +426,11 @@ static bool computeParamByFunc(Adaptor3d_Curve& C3d, double first, double last,
{
if (!func.IsReady())
return false;
// ########## TMP until pb division by zero when func(0.0)==0 is fixed #########
if (::Abs(func(0.0)) <= ::RealSmall() ) return false;
// ########## TMP until pb division by zero when func(0.0)==0 is fixed #########
vector<double> xxx[2];
int nbPnt = 1 + nbSeg;
int rev, i;
@ -465,6 +470,8 @@ static bool computeParamByFunc(Adaptor3d_Curve& C3d, double first, double last,
// Decrease x1 ...
x1_too_large = x1;
x1 = (x1_too_small+x1_too_large)/2;
if ( x1 <= ::RealSmall() )
return false; // break infinite loop
continue;
}
@ -516,7 +523,7 @@ static bool computeParamByFunc(Adaptor3d_Curve& C3d, double first, double last,
return false;
prevU = U;
}
return false;
return true;
}
//=============================================================================