Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Return a new character set by subtracting.
Defined in header <boost/url/grammar/lut_chars.hpp>
friend constexpr lut_chars operator-( lut_chars const& cs0, lut_chars const& cs1);
This function returns a new character set which is formed from all of the
characters in cs0 which
are not in cs.
This statement declares a character set containing all the lowercase letters which are not vowels:
constexpr lut_chars consonants = lut_chars("abcdefghijklmnopqrstuvwxyz") - "aeiou";
Constant.
The new character set.
|
Name |
Description |
|---|---|
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A character set to join. |
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A character set to join. |
Convenience header <boost/url/grammar.hpp>