Difference between revisions of "cpp/utility/program"
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{{title|Program support utilities}} | {{title|Program support utilities}} | ||
{{cpp/utility/program/navbar}} | {{cpp/utility/program/navbar}} | ||
| − | |||
| + | ===Program termination=== | ||
The following functions manage program termination and resource cleanup. | The following functions manage program termination and resource cleanup. | ||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc header | cstdlib}} | + | {{dsc header|cstdlib}} |
| − | {{dsc inc | cpp/utility/program/dsc abort}} | + | {{dsc inc|cpp/utility/program/dsc abort}} |
| − | {{dsc inc | cpp/utility/program/dsc exit}} | + | {{dsc inc|cpp/utility/program/dsc exit}} |
| − | {{dsc inc | cpp/utility/program/dsc quick_exit}} | + | {{dsc inc|cpp/utility/program/dsc quick_exit}} |
| − | {{dsc inc | cpp/utility/program/dsc _Exit}} | + | {{dsc inc|cpp/utility/program/dsc _Exit}} |
| − | {{dsc inc | cpp/utility/program/dsc atexit}} | + | {{dsc inc|cpp/utility/program/dsc atexit}} |
| − | {{dsc inc | cpp/utility/program/dsc at_quick_exit}} | + | {{dsc inc|cpp/utility/program/dsc at_quick_exit}} |
| − | {{dsc inc | cpp/utility/program/dsc EXIT_status}} | + | {{dsc inc|cpp/utility/program/dsc EXIT_status}} |
{{dsc end}} | {{dsc end}} | ||
| − | === | + | {{rrev|since=c++23| |
| + | ===Unreachable control flow=== | ||
| + | {{dsc begin}} | ||
| + | {{dsc header|utility}} | ||
| + | {{dsc inc|cpp/utility/dsc unreachable}} | ||
| + | {{dsc end}} | ||
| + | }} | ||
| + | ===Communicating with the environment=== | ||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc inc | cpp/utility/program/dsc system}} | + | {{dsc header|cstdlib}} |
| − | {{dsc inc | cpp/utility/program/dsc getenv}} | + | {{dsc inc|cpp/utility/program/dsc system}} |
| + | {{dsc inc|cpp/utility/program/dsc getenv}} | ||
{{dsc end}} | {{dsc end}} | ||
===Signals=== | ===Signals=== | ||
| − | |||
Several functions and macro constants for signal management are provided. | Several functions and macro constants for signal management are provided. | ||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc header | csignal}} | + | {{dsc header|csignal}} |
| − | {{dsc inc | cpp/utility/program/dsc signal}} | + | {{dsc inc|cpp/utility/program/dsc signal}} |
| − | {{dsc inc | cpp/utility/program/dsc raise}} | + | {{dsc inc|cpp/utility/program/dsc raise}} |
| − | {{dsc typedef | cpp/utility/program/sig_atomic_t | the integer type that can be accessed as an atomic entity from an asynchronous signal handler}} | + | {{dsc typedef|cpp/utility/program/sig_atomic_t|the integer type that can be accessed as an atomic entity from an asynchronous signal handler}} |
| − | {{dsc inc | cpp/utility/program/dsc SIG_strategies}} | + | {{dsc inc|cpp/utility/program/dsc SIG_strategies}} |
| − | {{dsc inc | cpp/utility/program/dsc SIG_ERR}} | + | {{dsc inc|cpp/utility/program/dsc SIG_ERR}} |
| − | {{dsc h2 | Signal types}} | + | {{dsc h2|Signal types}} |
| − | {{dsc inc | cpp/utility/program/dsc SIG_types}} | + | {{dsc inc|cpp/utility/program/dsc SIG_types}} |
{{dsc end}} | {{dsc end}} | ||
===Non-local jumps=== | ===Non-local jumps=== | ||
| − | |||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc header | csetjmp}} | + | {{dsc header|csetjmp}} |
| − | {{dsc inc | cpp/utility/program/dsc setjmp}} | + | {{dsc inc|cpp/utility/program/dsc setjmp}} |
| − | {{dsc inc | cpp/utility/program/dsc longjmp}} | + | {{dsc inc|cpp/utility/program/dsc longjmp}} |
| − | {{dsc h2 | Types}} | + | {{dsc h2|Types}} |
| − | {{dsc inc | cpp/utility/program/dsc jmp_buf}} | + | {{dsc inc|cpp/utility/program/dsc jmp_buf}} |
| + | {{dsc end}} | ||
| + | |||
| + | ===See also=== | ||
| + | {{dsc begin}} | ||
| + | {{dsc see c|c/program|Program support utilities|nomono=true}} | ||
{{dsc end}} | {{dsc end}} | ||
| − | + | {{langlinks|de|es|fr|it|ja|pt|ru|zh}} | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
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Latest revision as of 06:12, 16 December 2023
Contents |
[edit] Program termination
The following functions manage program termination and resource cleanup.
| Defined in header
<cstdlib> | |
| causes abnormal program termination (without cleaning up) (function) | |
| causes normal program termination with cleaning up (function) | |
| (C++11) |
causes quick program termination without completely cleaning up (function) |
| (C++11) |
causes normal program termination without cleaning up (function) |
| registers a function to be called on std::exit() invocation (function) | |
| (C++11) |
registers a function to be called on std::quick_exit invocation (function) |
| indicates program execution status (macro constant) | |
Unreachable control flow
|
(since C++23) | ||||
[edit] Communicating with the environment
| Defined in header
<cstdlib> | |
| calls the host environment's command processor (function) | |
| access to the list of environment variables (function) | |
[edit] Signals
Several functions and macro constants for signal management are provided.
| Defined in header
<csignal> | |
| sets a signal handler for particular signal (function) | |
| runs the signal handler for particular signal (function) | |
| the integer type that can be accessed as an atomic entity from an asynchronous signal handler (typedef) | |
| defines signal handling strategies (macro constant) | |
| return value of signal specifying that an error was encountered (macro constant) | |
Signal types | |
| defines signal types (macro constant) | |
[edit] Non-local jumps
| Defined in header
<csetjmp> | |
| saves the context (function macro) | |
| jumps to specified location (function) | |
Types | |
| execution context type (typedef) | |
[edit] See also
| C documentation for Program support utilities
|
