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Add seed to command line options (warning, zero cannot be used as seed with this implementation)

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Håvard Berland
2010-10-29 14:49:13 +02:00
parent 5fe8c02605
commit ed95818089
1 changed files with 10 additions and 2 deletions
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12
dune/upscaling/test/cpchop.cpp
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@@ -57,6 +57,7 @@ int main(int argc, char** argv)
int jlen = param.getDefault("jlen", jmax - jmin);
double zlen = param.getDefault("zlen", zmax - zmin);
bool upscale = param.getDefault("upscale", true);
boost::mt19937::result_type userseed = param.getDefault("seed", 0);
int outputprecision = param.getDefault("outputprecision", 8);
std::string filebase = param.getDefault<std::string>("filebase", "");
@@ -70,8 +71,15 @@ int main(int argc, char** argv)
// Random number generator from boost.
boost::mt19937 gen;
// Seed the random number generators with the current time
gen.seed(time(NULL));
// Seed the random number generators with the current time, unless specified on command line
// Warning: Current code does not allow 0 for the seed!!
if (userseed == 0) {
gen.seed(time(NULL));
}
else {
gen.seed(userseed);
}
// Note that end is included in interval for uniform_int.
boost::uniform_int<> disti(imin, imax - ilen);