deduction guides for std::basic_regex
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< cpp | regex | basic regex
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Deduction guides(C++17)
Defined in header
<regex>
template< class ForwardIt >
(since C++17)
basic_regex( ForwardIt, ForwardIt,
std::regex_constants::syntax_option_type = std::regex_constants::ECMAScript )
This deduction guide is provided for std::basic_regex to allow deduction from an iterator range.
[edit] Example
Run this code
#include <regex> #include <vector> int main() { std::vector <char> v = {'a', 'b', 'c'}; std::basic_regex re(v.begin(), v.end()); // uses explicit deduction guide }