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use eo::log ; warning when returns 0

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This commit is contained in:
Johann Dreo 2010-08-17 14:56:33 +02:00
commit ce99bb02f1
1 changed files with 31 additions and 21 deletions
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52
eo/src/utils/eoHowMany.h
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@ -4,6 +4,8 @@
// eoHowMany_h.h
// Base class for choosing a number of guys to apply something from a popsize
// (c) Marc Schoenauer, 2000
// (c) Thales group, 2010 (Johann Dréo <johann.dreo@thalesgroup.com>)
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@ -66,6 +68,8 @@
#include <sstream>
#include <utils/eoLogger.h>
class eoHowMany : public eoPersistent
{
public:
@ -78,19 +82,19 @@ public:
{
if (_interpret_as_rate)
{
if (_rate<0)
{
rate = 1.0+_rate;
if (rate < 0) // was < -1
throw std::logic_error("rate<-1 in eoHowMany!");
}
if (_rate<0)
{
rate = 1.0+_rate;
if (rate < 0) // was < -1
throw std::logic_error("rate<-1 in eoHowMany!");
}
}
else
{
rate = 0.0; // just in case, but shoud be unused
combien = int(_rate); // negative values are allowed here
if (combien != _rate)
std::cerr << "Warning: Number was rounded in eoHowMany";
rate = 0.0; // just in case, but shoud be unused
combien = int(_rate); // negative values are allowed here
if (combien != _rate)
eo::log << eo::warnings << "Number was rounded in eoHowMany";
}
}
@ -115,14 +119,20 @@ public:
{
if (combien == 0)
{
return (unsigned int) (rate * _size);
unsigned int res = static_cast<unsigned int>( std::ceil( rate * _size ) );
if( res == 0 ) {
eo::log << eo::warnings << "Call to a eoHowMany instance returns 0 (rate=" << rate << ", size=" << _size << ")" << std::endl;
}
return res;
}
if (combien < 0)
{
unsigned int combloc = -combien;
if (_size<combloc)
throw std::runtime_error("Negative result in eoHowMany");
return _size-combloc;
unsigned int combloc = -combien;
if (_size<combloc)
throw std::runtime_error("Negative result in eoHowMany");
return _size-combloc;
}
return unsigned(combien);
}
@ -152,8 +162,8 @@ public:
size_t pos = _value.find('%');
if (pos < _value.size()) // found a %
{
interpret_as_rate = true;
_value.resize(pos); // get rid of %
interpret_as_rate = true;
_value.resize(pos); // get rid of %
}
std::istringstream is(_value);
@ -161,11 +171,11 @@ public:
// now store
if (interpret_as_rate)
{
combien = 0;
rate /= 100.0;
combien = 0;
rate /= 100.0;
}
else
combien = int(rate); // and rate will not be used
combien = int(rate); // and rate will not be used
// minimal check
if ( rate < 0.0 )
@ -175,7 +185,7 @@ public:
/** The unary - operator: reverses the computation */
eoHowMany operator-()
{
if (!combien) // only rate is used
if (!combien) // only rate is used
rate = 1.0-rate;
else
combien = -combien;