Input/Output Functions

std::string as_string() const; 
bool from_string(const std::string& str);

These functions handle conversion between strings, see 4.2 for string representations.

as_string(): Returns the interval object as a string.
from_string(const std::string& str): Attempts to parse the given string and set the infinimum and supremum of the current object. Returns whether the parsing was successful.