Program support utilities

< c


[edit] Program termination

The following functions manage program termination and resources cleanup.

Defined in header <stdlib.h>
causes abnormal program termination (without cleaning up)
(function) [edit]
causes normal program termination with cleaning up
(function) [edit]
causes normal program termination without completely cleaning up
(function) [edit]
causes normal program termination without cleaning up
(function) [edit]
registers a function to be called on exit() invocation
(function) [edit]
registers a function to be called on quick_exit invocation
(function) [edit]
indicates program execution execution status
(macro constant) [edit]

[edit] Unreachable control flow

Defined in header <stddef.h>
marks unreachable point of execution
(function macro) [edit]

[edit] Communicating with the environment

Defined in header <stdlib.h>
calls the host environment's command processor
(function) [edit]
access to the list of environment variables
(function) [edit]

[edit] Signals

Several functions and macro constants for signal management are provided.

Defined in header <signal.h>
sets a signal handler for particular signal
(function) [edit]
runs the signal handler for particular signal
(function) [edit]
the integer type that can be accessed as an atomic entity from an asynchronous signal handler
defines signal handling strategies
(macro constant) [edit]
error was encountered
(macro constant) [edit]
Signal types
defines signal types
(macro constant) [edit]

[edit] Non-local jumps

Defined in header <setjmp.h>
saves the context
(function macro) [edit]
jumps to specified location
(function) [edit]
execution context type
(typedef) [edit]

[edit] References

  • C17 standard (ISO/IEC 9899:2018):
  • 7.13 Nonlocal jumps <setjmp.h> (p: 191-192)
  • 7.14 Signal handling <signal.h> (p: 193-195)
  • 7.22 General utilities <stdlib.h> (p: 248-262)
  • 7.31.7 Signal handling <signal.h> (p: 332)
  • 7.31.12 General utilities <stdlib.h> (p: 333)
  • C11 standard (ISO/IEC 9899:2011):
  • 7.13 Nonlocal jumps <setjmp.h> (p: 262-264)
  • 7.14 Signal handling <signal.h> (p: 265-267)
  • 7.22 General utilities <stdlib.h> (p: 340-360)
  • 7.31.7 Signal handling <signal.h> (p: 455)
  • 7.31.12 General utilities <stdlib.h> (p: 456)
  • C99 standard (ISO/IEC 9899:1999):
  • 7.13 Nonlocal jumps <setjmp.h> (p: 243-245)
  • 7.14 Signal handling <signal.h> (p: 246-248)
  • 7.20 General utilities <stdlib.h> (p: 306-324)
  • 7.26.6 Signal handling <signal.h> (p: 401)
  • 7.26.10 General utilities <stdlib.h> (p: 402)
  • C89/C90 standard (ISO/IEC 9899:1990):
  • 4.6 NON-LOCAL JUMPS <setjmp.h>
  • 4.7 SIGNAL HANDLING <signal.h>
  • 4.10 GENERAL UTILITIES <stdlib.h>
  • 4.13.5 Signal handling <signal.h>
  • 7.13.7 General utilities <stdlib.h>

[edit] See also

C++ documentation for Program support utilities