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Defined in header
#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 SIGTERMtermination request, sent to the program SIGSEGVinvalid memory access (segmentation fault) SIGINTexternal interrupt, usually initiated by the user SIGILLinvalid program image, such as invalid instruction SIGABRTabnormal termination condition, as is e.g. initiated by
SIGFPEerroneous arithmetic operation such as divide by zero Notes
Additional signal names
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See also