| 1 | // -*- C++ -*-
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| 2 | //
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| 3 | // This file is part of HepMC
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| 4 | // Copyright (C) 2014-2019 The HepMC collaboration (see AUTHORS for details)
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| 5 | //
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| 6 | /**
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| 7 | * @file GenPdfInfo.cc
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| 8 | * @brief Implementation of \b class GenPdfInfo
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| 9 | *
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| 10 | */
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| 11 | #include "HepMC3/GenPdfInfo.h"
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| 12 | #include <cstring> // memcmp
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| 13 | #include <cstdlib> // atoi
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| 14 | #include <cstdio> // sprintf
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| 15 |
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| 16 | namespace HepMC3 {
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| 17 |
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| 18 | bool GenPdfInfo::from_string(const std::string &att) {
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| 19 | const char *cursor = att.data();
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| 20 |
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| 21 | parton_id[0] = atoi(cursor);
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| 22 |
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| 23 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 24 | parton_id[1] = atoi(cursor);
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| 25 |
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| 26 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 27 | x[0] = atof(cursor);
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| 28 |
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| 29 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 30 | x[1] = atof(cursor);
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| 31 |
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| 32 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 33 | scale = atof(cursor);
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| 34 |
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| 35 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 36 | xf[0] = atof(cursor);
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| 37 |
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| 38 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 39 | xf[1] = atof(cursor);
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| 40 |
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| 41 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 42 | pdf_id[0] = atoi(cursor);
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| 43 |
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| 44 | if( !(cursor = strchr(cursor+1,' ')) ) return false;
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| 45 | pdf_id[1] = atoi(cursor);
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| 46 |
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| 47 | return true;
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| 48 | }
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| 49 |
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| 50 | bool GenPdfInfo::to_string(std::string &att) const {
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| 51 | char buf[255];//Note: the format is fixed, so no reason for complicatied tratment
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| 52 |
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| 53 | snprintf(buf,255,"%i %i %.8e %.8e %.8e %.8e %.8e %i %i",
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| 54 | parton_id[0],
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| 55 | parton_id[1],
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| 56 | x[0],
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| 57 | x[1],
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| 58 | scale,
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| 59 | xf[0],
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| 60 | xf[1],
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| 61 | pdf_id[0],
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| 62 | pdf_id[1]);
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| 63 |
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| 64 | att = buf;
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| 65 |
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| 66 | return true;
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| 67 | }
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| 68 |
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| 69 | void GenPdfInfo::set(const int& parton_id1, const int& parton_id2, const double& x1, const double& x2,
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| 70 | const double& scale_in, const double& xf1,const double& xf2,
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| 71 | const int& pdf_id1, const int& pdf_id2) {
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| 72 | parton_id[0] = parton_id1;
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| 73 | parton_id[1] = parton_id2;
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| 74 | x[0] = x1;
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| 75 | x[1] = x2;
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| 76 | scale = scale_in;
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| 77 | xf[0] = xf1;
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| 78 | xf[1] = xf2;
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| 79 | pdf_id[0] = pdf_id1;
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| 80 | pdf_id[1] = pdf_id2;
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| 81 | }
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| 82 |
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| 83 | bool GenPdfInfo::operator==( const GenPdfInfo& a ) const {
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| 84 | return ( memcmp( (void*)this, (void*)&a, sizeof(class GenPdfInfo) ) == 0 );
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| 85 | }
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| 86 |
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| 87 | bool GenPdfInfo::operator!=( const GenPdfInfo& a ) const {
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| 88 | return !( a == *this );
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| 89 | }
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| 90 |
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| 91 | bool GenPdfInfo::is_valid() const
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| 92 | {
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| 93 | if( parton_id[0] != 0 ) return true;
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| 94 | if( parton_id[1] != 0 ) return true;
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| 95 | if( x[0] != 0 ) return true;
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| 96 | if( x[1] != 0 ) return true;
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| 97 | if( scale != 0 ) return true;
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| 98 | if( xf[0] != 0 ) return true;
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| 99 | if( xf[1] != 0 ) return true;
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| 100 | if( pdf_id[0] != 0 ) return true;
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| 101 | if( pdf_id[1] != 0 ) return true;
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| 102 |
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| 103 | return false;
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| 104 | }
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| 105 |
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| 106 | } // namespace HepMC3
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