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std::stof, std::stod, std::stold cppreference.com
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std::stof, std::stod, std::stold

cppreference.com
 
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float stof( const std::string& str, size_t *pos = 0 );
 (1) ( C++11)
double stod( const std::string& str, size_t *pos = 0 );
 (2) ( C++11)
long double stold( const std::string& str, size_t *pos = 0 );
 (3) ( C++11)

str.

( std::isspace), . , . :

  • . :
  • ()
  • , ( C) ( )
  • () e E, ( 10)
  • . :
  • ()
  • 0x 0X
  • , ( C) ( )
  • () p P, ( 2)
  • . :
  • ()
  • INF INFINITY
  • . :
  • ()
  • NAN NAN( ) NAN. , . NaN .
  • , C

pos. pos NULL, .

str
pos

, .

std::invalid_argument,

std::out_of_range,

.

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