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std::basic_string<CharT,Traits,Allocator>::starts_with

bool starts_with(std::basic_string_view<CharT, Traits> x) const noexcept;
 (1) (since C++20) 
bool starts_with(CharT x) const noexcept;
 (2) (since C++20) 
bool starts_with(const CharT* x) const;
 (3) (since C++20)

Checks if the string begins with the given prefix, where.

1) the prefix is a string view (which may be a result of implicit conversion from another std::basic_string)
2) the prefix is a single character
3) the prefix is a C-style string

All three overloads effectively return std::basic_string_view<CharT, Traits>(data(), size()).starts_with(x);

Parameters

x - a character sequence or a single character to compare to the start of the string

Return value

true if the string begins with the provided prefix, false otherwise.

Example

See also

(C++20)
 checks if the string ends with the given suffix
(public member function)
(C++20)
 checks if the string view starts with the given prefix
(public member function of std::basic_string_view<CharT,Traits>)
(C++20)
 checks if the string view ends with the given suffix
(public member function of std::basic_string_view<CharT,Traits>)
compares two strings
(public member function)
returns a substring
(public member function)

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