| Defined in header <signal.h> | ||
|---|---|---|
#define SIGTERM /*implementation defined*/ | ||
#define SIGSEGV /*implementation defined*/ | ||
#define SIGINT /*implementation defined*/ | ||
#define SIGILL /*implementation defined*/ | ||
#define SIGABRT /*implementation defined*/ | ||
#define SIGFPE /*implementation defined*/ |
Each of the above macro constants expands to an integer constant expression with distinct values, which represent different signals sent to the program.
| Constant | Explanation |
|---|---|
SIGTERM | termination request, sent to the program |
SIGSEGV | invalid memory access (segmentation fault) |
SIGINT | external interrupt, usually initiated by the user |
SIGILL | invalid program image, such as invalid instruction |
SIGABRT | abnormal termination condition, as is e.g. initiated by abort() |
SIGFPE | erroneous arithmetic operation such as divide by zero |
References
- C11 standard (ISO/IEC 9899:2011):
- 7.14/3 Signal handling <signal.h> (p: 265)
- C99 standard (ISO/IEC 9899:1999):
- 7.14/3 Signal handling <signal.h> (p: 246)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.7 SIGNAL HANDLING <signal.h>
See also
| sets a signal handler for particular signal (function) | |
| runs the signal handler for particular signal (function) | |
| C++ documentation for signal types | |
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