本文整理汇总了C++中Arg::dimension方法的典型用法代码示例。如果您正苦于以下问题：C++ Arg::dimension方法的具体用法？C++ Arg::dimension怎么用？C++ Arg::dimension使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Arg的用法示例。
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示例1: solver
/** Solving nonlinear system of the function "GenFunc"
* @see IEqSolver.h
* @return StatusCode
*/
StatusCode EqSolver::solver (const Equations& funcs ,
Arg& arg ) const
//=============================================================================
{
using namespace Genfun;
gsl_vector_view vect = gsl_vector_view_array ( &arg[0] ,
arg.dimension() );
MsgStream log( msgSvc(), name() );
EqSolverMisc local (funcs, arg);
const gsl_multiroot_fdfsolver_type *T = m_type;
gsl_multiroot_fdfsolver *s;
int status = 0 ;
size_t iter = 0 ;
gsl_multiroot_function_fdf function;
function.f = &fun_gsl;
function.df = &dfun_gsl;
function.fdf = &fdfun_gsl;
function.n = vect.vector.size;
function.params = (void*) &local;
s = gsl_multiroot_fdfsolver_alloc(T, vect.vector.size);
gsl_multiroot_fdfsolver_set (s, &function, &vect.vector);
for (iter = 0; iter < m_max_iter; ++iter)
{
status = gsl_multiroot_fdfsolver_iterate (s);
if (status)
{
return Error
("Error from gsl_gsl_multiroot_fdfsolver_iterate '"
+ std::string(gsl_strerror(status)) + "'") ;
}
status = gsl_multiroot_test_residual (s->f,
m_norm_residual);
if ( status != GSL_CONTINUE ) { break; }
}
for (unsigned int i = 0; i < vect.vector.size; ++i)
{
gsl_vector_set (&vect.vector, i, gsl_vector_get (s->x, i));
}
if (status == GSL_SUCCESS)
{
log << MSG::DEBUG
<< "We stopped in the method on the " << iter
<< " iteration (we have maximum " << m_max_iter
<< " iterations)" << endmsg;
}
else if (status == GSL_CONTINUE && iter <= m_max_iter )
{
return Error ( "Method finished with '"
+ std::string(gsl_strerror(status))
+ "' error" );
}
else
{
return Error ( "Method finished with '" +
std::string(gsl_strerror(status))
+ "' error" );
}
gsl_multiroot_fdfsolver_free (s);
if (status)
{
return Error ( "Method finished with '"
+ std::string(gsl_strerror(status))
+ "' error" );
}
return GSL_SUCCESS;
}