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Showing content from https://timsong-cpp.github.io/cppwp/n4659/string.view.cons below:

24 Strings library [strings] 24.4 String view classes [string.view] 24.4.2 Class template basic_string_view [string.view.template] 24.4.2.1 Construction and assignment [string.view.cons]

constexpr basic_string_view() noexcept;

Effects: Constructs an empty basic_string_view.

Postconditions: size_ == 0 and data_ == nullptr.

constexpr basic_string_view(const charT* str);

Requires: [str, str + traits::length(str)) is a valid range.

Effects: Constructs a basic_string_view, with the postconditions in Table 64.

Table

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basic_string_view(const charT*)

effects

Element Value data_ str size_ traits::length(str)

Complexity: O(traits::length(str)).

constexpr basic_string_view(const charT* str, size_type len);

Requires: [str, str + len) is a valid range.

Effects: Constructs a basic_string_view, with the postconditions in Table 65.

Table

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basic_string_view(const charT*, size_type)

effects

Element Value data_ str size_ len

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