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DenseLinAlgPack_random_vector.cpp
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00041 
00042 #include <stdlib.h>
00043 
00044 #include <stdexcept>
00045 
00046 #include "DenseLinAlgPack_random_vector.hpp"
00047 #include "DenseLinAlgPack_DVectorClass.hpp"
00048 
00049 void DenseLinAlgPack::seed_random_vector_generator( unsigned int s )
00050 {
00051   srand(s);
00052 }
00053 
00054 void DenseLinAlgPack::random_vector( value_type l, value_type u, DVectorSlice* v )
00055 {
00056   if(!v)
00057     throw std::invalid_argument( "random_vector(...) : Error, "
00058       "v can not be NULL" );
00059   if( l > u )
00060     throw std::invalid_argument( "random_vector(...) : Error, "
00061       "l can not be greater than u" );
00062   for( DVectorSlice::iterator itr = v->begin(); itr != v->end(); )
00063     *itr++ = l + (double(rand())/RAND_MAX) * (u -l);
00064 }
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