6.13.3 SIGABRT Macro

Name for the abnormal termination signal.

Include

<signal.h>

Remarks

The SIGABRT macro expands to a positive integer constant expression with type int that represents an abnormal termination signal and is used in conjunction with the raise() or signal()functions. The default behavior of the raise() function (action identified by SIG_DFL) is to output to the standard error stream: abort - terminating.

See the example accompanying signal() to see general usage of signal names and signal handling.

Example

See the notes at the beginning of this chapter or section for information on using printf() or scanf() (and other functions reading and writing the stdin or stdout streams) in the example code.

#include <signal.h>
#include <stdio.h>
int main(void)
{
  raise(SIGABRT);
  printf("Program never reaches here.");
}

Example Output

ABRT

where ABRT stands for “abort.”