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C++ Dev Null Os

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Unix Dev Null
< cpp‎ | filesystem
 C++ Language
 Standard Library Headers
 Freestanding and hosted implementations
 Named requirements 
 Language support library
 Concepts library(C++20)
 Diagnostics library
 Utilities library
 Strings library
 Containers library
 Iterators library
 Ranges library(C++20)
 Algorithms library
 Numerics library
 Input/output library
 Localizations library
 Regular expressions library(C++11)
 Atomic operations library(C++11)
 Thread support library(C++11)
 Filesystem library(C++17)
 Technical Specifications
 Filesystem library Classes
 Functions
File types
Defined in header 
bool is_regular_file(std::filesystem::file_status s )noexcept;
 (1) (since C++17)
bool is_regular_file(conststd::filesystem::path& p );
bool is_regular_file(conststd::filesystem::path& p, std::error_code& ec )noexcept;
 (2) (since C++17)
Checks if the given file status or path corresponds to a regular file.
2) Equivalent to is_regular_file(status(p)) or is_regular_file(status(p, ec)) respectively.
[edit]Parameters s - file status to check
 p - path to examine
 ec - error code to store the error status to
[edit]Return valuetrue if the file indicated by p or if the type indicated by s refers to a regular file, false otherwise. The non-throwing overload returns false if an error occurs.
[edit]Exceptions

2) The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed with p as the first path argument and the OS error code as the error code argument. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.
C Dev Null Os X[edit]NotesThe throwing overload is additionally specified to throw std::filesystem::filesystem_error if status(p) would throw.
[edit]ExamplePossible output:
[edit]See also(C++17)(C++17)
 determines file attributes
determines file attributes, checking the symlink target 
(function)[edit]
(C++17)
 represents file type and permissions 
(class)[edit]
(C++17)
 checks whether file status is known 
(function)[edit]
(C++17)
 checks whether the given path refers to block device 
(function)[edit]
(C++17)
 checks whether the given path refers to a character device 
(function)[edit]
(C++17)
 checks whether the given path refers to a directory 
(function)[edit]
(C++17)
 checks whether the given path refers to a named pipe 
(function)[edit]
(C++17)
 checks whether the argument refers to an other file 
(function)[edit]
(C++17)
 checks whether the argument refers to a named IPC socket 
(function)[edit]
(C++17)
 checks whether the argument refers to a symbolic link 
(function)[edit]
(C++17)
 checks whether path refers to existing file system object 
(function)[edit]
 checks whether the directory entry refers to a regular file 
(public member function of std::filesystem::directory_entry)[edit]
 Retrieved from 'https://en.cppreference.com/mwiki/index.php?title=cpp/filesystem/is_regular_file&oldid=105045' 
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2) The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed with p as the first path argument and the OS error code as the error code argument. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. Any overload not marked noexcept may throw std::bad_alloc if memory allocation fails.
C Dev Null Os X[edit]NotesThe throwing overload is additionally specified to throw std::filesystem::filesystem_error if status(p) would throw.
[edit]ExamplePossible output:
[edit]See also(C++17)(C++17)
 determines file attributes
determines file attributes, checking the symlink target 
(function)[edit]
(C++17)
 represents file type and permissions 
(class)[edit]
(C++17)
 checks whether file status is known 
(function)[edit]
(C++17)
 checks whether the given path refers to block device 
(function)[edit]
(C++17)
 checks whether the given path refers to a character device 
(function)[edit]
(C++17)
 checks whether the given path refers to a directory 
(function)[edit]
(C++17)
 checks whether the given path refers to a named pipe 
(function)[edit]
(C++17)
 checks whether the argument refers to an other file 
(function)[edit]
(C++17)
 checks whether the argument refers to a named IPC socket 
(function)[edit]
(C++17)
 checks whether the argument refers to a symbolic link 
(function)[edit]
(C++17)
 checks whether path refers to existing file system object 
(function)[edit]
 checks whether the directory entry refers to a regular file 
(public member function of std::filesystem::directory_entry)[edit]
 Retrieved from 'https://en.cppreference.com/mwiki/index.php?title=cpp/filesystem/is_regular_file&oldid=105045' 
C++ Dev Null Oscar C++C Dev Null Os Free Language
 Standard Library Headers
 Freestanding and hosted implementations
 Named requirements 
 Language support library
 Concepts library(C++20)
 Diagnostics library
 Utilities library
 Strings library
 Containers library
 Iterators library
 Ranges library(C++20)
 Algorithms library
 Numerics library
 Input/output library
 Localizations library
 Regular expressions library(C++11)
 Atomic operations library(C++11)
 Thread support library(C++11)
 Filesystem library(C++17)
 Technical Specifications
C++98, C++03, C++11, C++14, C++17, C++20
 Basic concepts
 C++ keywords
 Preprocessor
 Expressions
 Declaration
 Initialization
 Functions
 Statements
 Classes
 Templates
 Exceptions
Feature test macros(C++20)
 Type support − traits(C++11)
 Program utilities
 Relational comparators(C++20)
numeric_limits − type_info
initializer_list(C++11)
 Concepts library(C++20)
 Smart pointers and allocators
 Date and time
 Function objects − hash(C++11)
 String conversions(C++17)
 Utility functions
pair − tuple(C++11)
optional(C++17) − any(C++17)
variant(C++17) − format(C++20)
basic_string
basic_string_view(C++17)
Null-terminated strings:
byte − multibyte − wide
array(C++11) − vector
map − unordered_map(C++11)
priority_queue − span(C++20)
Other containers:
sequence − associative
unordered associative − adaptors
 Ranges library(C++20)
 Common math functions
 Mathematical special functions(C++17)
 Numeric algorithms
 Pseudo-random number generation
 Floating-point environment(C++11)
complex − valarray
 Stream-based I/O
 Synchronized output(C++20)
 I/O manipulators
 Regular expressions library(C++11)
 Atomic operations library(C++11)
atomic − atomic_flag
atomic_ref(C++20)
 Thread support library(C++11)
 Filesystem library(C++17)
 Technical specifications
Standard library extensions(library fundamentals TS)
Standard library extensions v2(library fundamentals TS v2)
propagate_const —ostream_joiner —randint
observer_ptr —detection idiom
Standard library extensions v3(library fundamentals TS v3)
scope_exit —scope_fail —scope_success —unique_resource
Concurrency library extensions(concurrency TS)
Concepts(concepts TS)
Ranges(ranges TS)
Transactional Memory(TM TS)
External Links − Non-ANSI/ISO Libraries − Index − std Symbol Index
Unix Dev Null Retrieved from 'https://en.cppreference.com/mwiki/index.php?title=cpp&oldid=97601' 

C++98, C++03, C++11, C++14, C++17, C++20
Basic concepts C++ keywords Preprocessor Expressions Declaration Initialization Functions Statements Classes Templates Exceptions Feature test macros(C++20) Type support − traits(C++11) Program utilities Relational comparators(C++20) numeric_limits − type_info initializer_list(C++11)	Concepts library(C++20) Smart pointers and allocators Date and time Function objects − hash(C++11) String conversions(C++17) Utility functions pair − tuple(C++11) optional(C++17) − any(C++17) variant(C++17) − format(C++20) basic_string basic_string_view(C++17) Null-terminated strings: byte − multibyte − wide array(C++11) − vector map − unordered_map(C++11) priority_queue − span(C++20) Other containers: sequence − associative unordered associative − adaptors	Ranges library(C++20) Common math functions Mathematical special functions(C++17) Numeric algorithms Pseudo-random number generation Floating-point environment(C++11) complex − valarray Stream-based I/O Synchronized output(C++20) I/O manipulators Regular expressions library(C++11) Atomic operations library(C++11) atomic − atomic_flag atomic_ref(C++20) Thread support library(C++11) Filesystem library(C++17)
Technical specifications Standard library extensions(library fundamentals TS) Standard library extensions v2(library fundamentals TS v2) propagate_const —ostream_joiner —randint observer_ptr —detection idiom Standard library extensions v3(library fundamentals TS v3) scope_exit —scope_fail —scope_success —unique_resource Concurrency library extensions(concurrency TS) Concepts(concepts TS) Ranges(ranges TS) Transactional Memory(TM TS)
External Links − Non-ANSI/ISO Libraries − Index − std Symbol Index

Defined in header
bool is_regular_file(std::filesystem::file_status s )noexcept;	(1)	(since C++17)
bool is_regular_file(conststd::filesystem::path& p ); bool is_regular_file(conststd::filesystem::path& p, std::error_code& ec )noexcept;	(2)	(since C++17)

s	-	file status to check
p	-	path to examine
ec	-	error code to store the error status to

(C++17)(C++17)	determines file attributes determines file attributes, checking the symlink target (function)[edit]
(C++17)	represents file type and permissions (class)[edit]
(C++17)	checks whether file status is known (function)[edit]
(C++17)	checks whether the given path refers to block device (function)[edit]
(C++17)	checks whether the given path refers to a character device (function)[edit]
(C++17)	checks whether the given path refers to a directory (function)[edit]
(C++17)	checks whether the given path refers to a named pipe (function)[edit]
(C++17)	checks whether the argument refers to an other file (function)[edit]
(C++17)	checks whether the argument refers to a named IPC socket (function)[edit]
(C++17)	checks whether the argument refers to a symbolic link (function)[edit]
(C++17)	checks whether path refers to existing file system object (function)[edit]
checks whether the directory entry refers to a regular file (public member function of `std::filesystem::directory_entry`)[edit]