Gabriele Cosmo
99 lines
2.3 KiB
Plaintext
99 lines
2.3 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_vpair
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#define tools_vpair
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#include <vector>
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namespace tools {
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template <class K,class V>
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inline void add(std::vector< std::pair<K,V> >& a_vec,const K& a_key,const V& a_value) {
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typedef typename std::vector< std::pair<K,V> >::iterator it_t;
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it_t it;
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for(it=a_vec.begin();it!=a_vec.end();++it) {
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if((*it).first==a_key) {
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(*it).second = a_value; //override.
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return;
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}
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}
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//not found, add a new pair :
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a_vec.push_back(std::pair<K,V>(a_key,a_value));
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}
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template <class K,class V>
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inline bool find(const std::vector< std::pair<K,V> >& a_vec,const K& a_key,V& a_value) {
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typedef typename std::vector< std::pair<K,V> >::const_iterator it_t;
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it_t it;
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for(it=a_vec.begin();it!=a_vec.end();++it) {
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if((*it).first==a_key) {
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a_value = (*it).second;
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return true;
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}
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}
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a_value = V();
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return false;
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}
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template <class K,class V>
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inline bool rfind(const std::vector< std::pair<K,V> >& a_vec,const K& a_key,V& a_value) {
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typedef typename std::vector< std::pair<K,V> >::const_reverse_iterator it_t;
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it_t it;
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for(it=a_vec.rbegin();it!=a_vec.rend();++it) {
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if((*it).first==a_key) {
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a_value = (*it).second;
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return true;
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}
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}
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a_value = V();
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return false;
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}
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template <class K,class V>
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inline bool find_key(const std::vector< std::pair<K,V> >& a_vec,const V& a_value,K& a_key) {
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typedef typename std::vector< std::pair<K,V> >::const_iterator it_t;
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it_t it;
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for(it=a_vec.begin();it!=a_vec.end();++it) {
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if((*it).second==a_value) {
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a_key = (*it).first;
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return true;
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}
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}
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a_key = K();
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return false;
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}
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template <class K,class V>
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inline void sort_by_second(std::vector< std::pair<K,V> >& a_vec){
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//sort according V
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//brute force.
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std::vector< std::pair<K,V> > v;
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typedef typename std::vector< std::pair<K,V> >::iterator it_t;
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it_t it;
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for(it=a_vec.begin();it!=a_vec.end();++it) {
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const V& val = (*it).second;
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bool done = false;
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it_t it2;
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for(it2=v.begin();it2!=v.end();++it2) {
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if(val<(*it2).second) {
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v.insert(it2,*it);
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done = true;
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break;
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}
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}
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if(!done) {
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v.push_back(*it);
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}
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}
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a_vec = v;
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}
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}
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#endif
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