fork download
copy 
  1. #include <locale>
  2. #include <iostream>
  3. #include <sstream>
  4. #include <iomanip>
  5.  
  6. struct skip_extra : std::ctype<char> {
  7.     skip_extra()
  8.         : std::ctype<char>( get_table() )
  9.     {}
  10.     static const mask* get_table() {
  11.         static const std::array<mask, table_size> table = [&]() {
  12.             std::array<mask, table_size> table;
  13.             std::copy( classic_table(), classic_table() + table_size, table.begin() );
  14.             table['"'] |= space;
  15.             table['\''] |= space;
  16.             table['['] |= space;
  17.             table[']'] |= space;
  18.             table[','] |= space;
  19.             return table;
  20.         }();
  21.         return table.begin();
  22.     }
  23. };
  24.  
  25. int main() {
  26.     std::istringstream s( "\"[['1.81592098644987','52.5487429714954'],['-1.81592290792183','52.5487234624632']]\"" );
  27.     s.imbue( std::locale( s.getloc(), new skip_extra ) );
  28.     double x;
  29.     while ( s >> x ) {
  30.         std::cout << std::setprecision( 15 ) << x << "\n";
  31.     }
  32. }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1.81592098644987
52.5487429714954
-1.81592290792183
52.5487234624632
https://ideone.com/zWsxfj
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!