| Program termination | |||||||||||||||||||||
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| Unreachable control flow | |||||||||||||||||||||
(C23) | |||||||||||||||||||||
| Communicating with the environment | |||||||||||||||||||||
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| Memory alignment query | |||||||||||||||||||||
(C23) | |||||||||||||||||||||
| Signals | |||||||||||||||||||||
| Signal types | |||||||||||||||||||||
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| Non-local jumps | |||||||||||||||||||||
| Types | |||||||||||||||||||||
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 byabort() |
SIGFPE | erroneous arithmetic operation such as divide by zero |
| sets a signal handler for particular signal (function)[edit] | |
| runs the signal handler for particular signal (function)[edit] | |
C++ documentation forsignal types | |
