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A base class for all exceptions that are thrown to report a low-level system overflow.
Syntax
class filesystem_error : public system_error;
Remarks
The class serves as the base class for all exceptions thrown to report an error in <filesystem> functions. It stores an object of type string, called mymesg here for the purposes of exposition. It also stores two objects of type path, called mypval1 and mypval2.
Members
Constructors
| Name | Description |
|---|---|
| filesystem_error | Constructs a filesystem_error message. |
Functions
| Name | Description |
|---|---|
| path1 | Returns mypval1 |
| path2 | Returns mypval2 |
| what | Returns a pointer to an NTBS. |
Requirements
Header: <filesystem>
Namespace: std::experimental::filesystem
filesystem_error
The first constructor constructs its message from what_arg and ec. The second constructor also constructs its message from pval1, which it stores in mypval1. The third constructor also constructs its message from pval1, which it stores in mypval1, and from pval2, which it stores in mypval2.
filesystem_error(const string& what_arg,
error_code ec);
filesystem_error(const string& what_arg,
const path& pval1,
error_code ec);
filesystem_error(const string& what_arg,
const path& pval1,
const path& pval2,
error_code ec);
Parameters
what_arg
Specified message.
ec
Specified error code.
mypval1
Further specified message parameter.
mypval2
Further specified message parameter.
path1
The member function returns mypval1
const path& path1() const noexcept;
path2
The member function returns mypval2
const path& path2() const noexcept;
what
The member function returns a pointer to an NTBS, preferably composed from runtime_error::what(), system_error::what(), mymesg, mypval1.native_string(), and mypval2.native_string().
const char *what() const noexcept;