std::filesystem::path::assign
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< cpp | filesystem | path
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Filesystem library
std::filesystem::path
Path decomposition Non-member functions
Helper classes
path::assign
(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
(C++26)
path& assign( string_type&& source );
(1)
(since C++17)
template< class Source >
path& assign( const Source& source );
(2)
(since C++17)
path& assign( const Source& source );
template< class InputIt >
path& assign( InputIt first, InputIt last );
(3)
(since C++17)
path& assign( InputIt first, InputIt last );
Replaces the contents to the path object by a new pathname constructed from the given character sequence.
1) Assigns the pathname identified by the detected-format string
source, which is left in valid, but unspecified state.2) Assigns the pathname identified by the detected-format character range
source.3) Assigns the pathname identified by detected-format character range
[first, last).(2) participates in overload resolution only if Source and path are not the same type, and either:
-
Sourceis a specialization of std::basic_string or std::basic_string_view , or - std::iterator_traits <std::decay_t <Source>>::value_type is valid and denotes a possibly const-qualified encoding character type (char, char8_t, (since C++20)char16_t, char32_t, or wchar_t).
[edit] Parameters
source
-
a character range to use, represented as std::string , std::string_view , pointer to a null-terminated multibyte string, or as an input iterator with char value type that points to a null-terminated multibyte string
first, last
-
a character range to use
Type requirements
-
InputIt must meet the requirements of LegacyInputIterator.
-The value type of
InputIt must be one of the encoded character types (char, wchar_t, char16_t and char32_t)
[edit] Return value
*this
[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 3244 | C++17 | constraint that Source cannot be path was missing
|
added |