SvdMethod.hh

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#ifndef NPSTAT_SVDMETHOD_HH_
#define NPSTAT_SVDMETHOD_HH_
 
/*!
// \file SvdMethod.hh
//
// \brief Enumeration of LAPACK methods used to calculate
//        singular value decompositions
//
// Author: I. Volobouev
//
// March 2014
*/
 
#include <string>
 
namespace npstat {
    /**
    // SVD_SIMPLE: use simple LAPACK driver for calculating SVD (such as DGESVD)
    //
    // SVD_D_AND_C: use divide and conquer LAPACK driver (such as DGESDD)
    */
    enum SvdMethod
    {
        SVD_SIMPLE = 0,
        SVD_D_AND_C
    };
 
    /** Enums corresponding to method names */
    SvdMethod parseSvdMethod(const char* methodName);
 
    /** Method names corresponding to enums */
    const char* svdMethodName(SvdMethod m);
 
    /** Valid method names for use in error messages, etc */
    std::string validSvdMethodNames();
}
 
#endif // NPSTAT_SVDMETHOD_HH_