Causes abnormal program termination unlessSIGABRT is being caught by a signal handler passed to signal and the handler does not return.

Functions passed toatexit() are not called. Whether open resources such as files are closed is implementation defined. An implementation defined status is returned to the host environment that indicates unsuccessful execution.

[edit]Parameters

(none)

[edit]Return value

(none)

[edit]Notes

POSIXspecifies that theabort() function overrides blocking or ignoring theSIGABRT signal.

Some compiler intrinsics, e.g.__builtin_trap (gcc, clang, and icc) or__fastfail/__debugbreak (msvc), can be used to terminate the program as fast as possible.

[edit]Example

#include <stdio.h>#include <stdlib.h> int main(void){FILE*fp=fopen("data.txt","r");if(fp==NULL){fprintf(stderr,"error opening file data.txt in function main()\n");        abort();} /* Normal processing continues here. */fclose(fp);printf("Normal Return\n");return0;}

error opening file data.txt in function main()

[edit]References

[edit]See also

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