This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
Some of the functionality described on this reference page extends the ISO C standard. Applications shall define the appropriate feature test macro (see the System Interfaces volume of POSIX.1-2017, Section 2.2, The Compilation Environment) to enable the visibility of these symbols in this header.
The <setjmp.h> header shall define the array types jmp_buf and sigjmp_buf.
The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.
void _longjmp(jmp_buf, int); void longjmp(jmp_buf, int); void siglongjmp(sigjmp_buf, int);
The following may be declared as functions, or defined as macros, or both. If functions are declared, function prototypes shall be provided.
int _setjmp(jmp_buf); int setjmp(jmp_buf); int sigsetjmp(sigjmp_buf, int);
The following sections are informative.
The System Interfaces volume of POSIX.1-2017, Section 2.2, The Compilation Environment, _longjmp(), longjmp(), setjmp(), siglongjmp(), sigsetjmp()
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
_longjmp(3p), longjmp(3p), setjmp(3p), siglongjmp(3p), sigsetjmp(3p).