Gabriele Cosmo
106 lines
2.6 KiB
Plaintext
106 lines
2.6 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_num2s
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#define tools_num2s
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// write numerics in a string as if done with a std::ostringstream::operator<<(<num>).
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#include "sprintf"
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#include "typedefs"
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#include <cstddef> //ptrdiff_t
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namespace tools {
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inline bool num2s(unsigned short a_value,std::string& a_s) { //used in value
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return print2s(a_s,32,"%u",a_value);
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}
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inline bool num2s(short a_value,std::string& a_s){ //used in value
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return print2s(a_s,32,"%d",a_value);
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}
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inline bool num2s(unsigned int a_value,std::string& a_s) {
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return print2s(a_s,32,"%u",a_value);
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}
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inline bool num2s(int a_value,std::string& a_s){
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return print2s(a_s,32,"%d",a_value);
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}
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inline bool num2s(uint64 a_value,std::string& a_s) {
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return print2s(a_s,32,uint64_format(),a_value);
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}
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inline bool num2s(int64 a_value,std::string& a_s){
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return print2s(a_s,32,int64_format(),a_value);
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}
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inline bool num2s(float a_value,std::string& a_s){
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return print2s(a_s,32,"%g",a_value);
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}
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inline bool num2s(double a_value,std::string& a_s){
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return print2s(a_s,32,"%g",a_value);
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}
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template <class T>
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inline bool numas(const T& a_value,std::string& a_s){
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std::string stmp;
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if(!num2s(a_value,stmp)) return false;
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a_s += stmp;
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return true;
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}
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// for the below std::vector num2s in case T=std::string :
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inline bool num2s(const std::string& a_value,std::string& a_s){a_s = a_value;return true;}
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template <class T>
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class num_out : public std::string {
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typedef std::string parent;
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public:
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num_out(const T& a_value) {
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parent::operator+=("\"");
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if(!numas(a_value,*this)) {} //throw
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parent::operator+=("\"");
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}
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public:
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num_out(const num_out& a_from):parent(a_from){}
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num_out& operator=(const num_out& a_from){parent::operator=(a_from);return *this;}
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};
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}
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#include <vector>
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namespace tools {
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template <class VEC>
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inline bool nums2s(const VEC& a_vals,std::string& a_s,const std::string& a_sep = "\n",bool a_sep_at_end = false) {
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a_s.clear();
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typename VEC::size_type number = a_vals.size();
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if(number<=0) return true; //it is ok.
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number--;
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std::string stmp;
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bool status = true;
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for(typename VEC::size_type index=0;index<number;index++) {
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if(!num2s(a_vals[index],stmp)) status = false; //continue.
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a_s += stmp;
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a_s += a_sep;
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}
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if(!num2s(a_vals[number],stmp)) status = false;
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a_s += stmp;
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if(a_sep_at_end) a_s += a_sep;
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return status;
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}
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template <class T>
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inline bool nums2s(const std::vector<T>& a_vals,std::string& a_s,const std::string& a_sep = "\n",bool a_sep_at_end = false) {
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return nums2s< std::vector<T> >(a_vals,a_s,a_sep,a_sep_at_end);
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}
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}
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#endif
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