Difference between revisions of "cpp/error"
From cppreference.com
< cpp
m (get_terminate only in c++11, and so is get_unexpected) |
(undo: the link as heading implies that the page contains entire category, i.e. should contain errno as cpp/error/errno_macros/errno. I'm not sure if we want one more level of indirection) |
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| − | === | + | ===Error numbers=== |
{{dcl list begin}} | {{dcl list begin}} | ||
{{dcl list header | cerrno}} | {{dcl list header | cerrno}} | ||
{{dcl list macro const | cpp/error/errno | macro which expands to POSIX-compatible thread-local error number variable}} | {{dcl list macro const | cpp/error/errno | macro which expands to POSIX-compatible thread-local error number variable}} | ||
| + | {{dcl list macro const | cpp/error/errno_macros | title=E2BIG, EACCES, ..., EXDEV | macros for standard POSIX-compatible error conditions}} <!-- 78 in C++11, only 3 in C++03 --> | ||
{{dcl list end}} | {{dcl list end}} | ||
Revision as of 10:11, 4 November 2011
Contents |
Exception handling
The header <exception> provide several classes and functions related to exception handling in C++ programs.
| Defined in header
<exception> | |
| base class for exceptions thrown by the standard library components (class) | |
Capture and storage of exception objects | |
| (C++11) |
checks if exception handling is currently in progress (function) |
| (C++11) |
shared pointer type for handling exception objects (typedef) |
| (C++11) |
creates an Template:cpp from an exception object (function template) |
| (C++11) |
captures the current exception in a Template:cpp (function) |
| (C++11) |
throws the exception from an Template:cpp (function) |
| (C++11) |
a mixin type to capture and store current exceptions (class) |
| (C++11) |
throws its argument with Template:cpp mixed in (function template) |
| (C++11) |
throws the exception from a Template:cpp (function template) |
Handling of failures in exception handling | |
| function called when exception handling fails (function) | |
| the type of the function called by Template:cpp (typedef) | |
| (C++11) |
obtains the current terminate_handler (function) |
| changes the function to be called by Template:cpp (function) | |
Handling of exception specification violations | |
| (deprecated) |
function called when dynamic exception specification is violated (function) |
| (deprecated) |
exception thrown when dynamic exception specification is violated, if possible (class) |
| (deprecated) |
the type of the function called by Template:cpp (typedef) |
| (C++11)(deprecated) |
obtains the current unexpected_handler (function) |
| (deprecated) |
changes the function to be called by Template:cpp (function) |
Exception categories
Several convenience classes are predefined in the header <stdexcept> to report particular error conditions. These classes can be divided into two categories: logic errors and runtime errors. Logic errors are a consequence of faulty logic within the program and may be preventable. Runtime errors are due to events beyond the scope of the program and can not be easily predicted.
| Defined in header
<stdexcept> | |
| exception class to indicate violations of logical preconditions or class invariants (class) | |
| exception class to report invalid arguments (class) | |
| exception class to report domain errors (class) | |
| exception class to report attempts to exceed maximum allowed size (class) | |
| exception class to report arguments outside of expected range (class) | |
| exception class to indicate conditions only detectable at run time (class) | |
| exception class to report range errors in internal computations (class) | |
| exception class to report arithmetic overflows (class) | |
| exception class to report arithmetic underflows (class) | |
Error numbers
| Defined in header
<cerrno> | |
| macro which expands to POSIX-compatible thread-local error number variable (macro constant) | |
| macros for standard POSIX-compatible error conditions (macro constant) | |
Assertions
Assertions help to implement checking of preconditions in programs.
| Defined in header
<cassert> | |
| aborts the program if the user-specified condition is not Template:cpp. May be disabled for release builds (function macro) | |
System error
The header <system_error> defines types and functions used to report error conditions originating from the operating system, streams I/O, Template:cpp, or other low-level APIs.
| Defined in header
<system_error> | |
| (C++11) |
base class for error categories (class) |
| (C++11) |
error category indicating generic error (class) |
| (C++11) |
error category indicating the operating system as the source of error (class) |
| (C++11) |
identifies an error condition (class) |
| (C++11) |
creates an error condition object of specified error_category (function) |
| (C++11) |
identifies an enumeration as an Template:cpp (class template) |
| (C++11) |
the Template:cpp enumeration listing all standard <cerrno> macro constants (class) |
| (C++11) |
holds error code values (class) |
| (C++11) |
creates an error code from an error_category (function) |
| (C++11) |
identifies a class as an error_code enumeration (class template) |
| (C++11) |
exception class used to report conditions that have an error_code (class) |
