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  1. #include <iostream>
  2. #include <string>
  3. #include <vector>
  4. #include <sstream>
  5.  
  6. struct csv_whitespace : std::ctype<char> {
  7.     static const mask* make_table() {
  8.         static std::vector<mask> v(classic_table(), classic_table() + table_size);
  9.         v[','] |= space;
  10.         v[' '] &= ~space;
  11.         return &v[0];
  12.     }
  13.  
  14.     csv_whitespace(std::size_t refs = 0) : std::ctype<char>{ make_table(), false, refs } { }
  15. };
  16.  
  17. int main() {
  18.     std::string str("1,2,3,4,5,6,7,8,9,10");
  19.     std::stringstream ss(str);
  20.     auto loc = ss.getloc();
  21.     ss.imbue(std::locale(loc, new csv_whitespace));
  22.     std::size_t N = 3;
  23.     while(N--) {
  24.     	std::string a;
  25.     	ss >> a;
  26.     	std::cout << a << '\n';
  27.     }
  28.     ss.ignore();
  29.     ss.imbue(loc);
  30.     std::string rest;
  31.     ss >> rest;
  32.     std::cout << "Rest: " << rest << "\n";
  33. }
Success #stdin #stdout 0s 4188KB
comments (?)
stdin
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Standard input is empty
stdout
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1
2
3
Rest: 4,5,6,7,8,9,10
https://ideone.com/2yJ1MI
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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