std::char_traits::find
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                    < cpp | string | char traits
                    
                                                            
                    | static const char_type* find( const char_type* p, std::size_t count, const char_type& ch ); | (until C++17) | |
| static constexpr const char_type* find( const char_type* p, std::size_t count, const char_type& ch ); | (since C++17) | |
Searches for character ch within the first count characters of the sequence pointed to by p.
Parameters
| p | - | pointer to a character string to search | 
| count | - | the number of characters to analyze | 
| ch | - | the character to search for | 
Return value
A pointer to the first character in the range specified by [p, p + count) that compares equal to ch, or NULL if not found.
Exceptions
(none)
Complexity
Linear in count.