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Linux Programmer's Manual (3)
assert_perror - test errnum and abort
#define _GNU_SOURCE /* See feature_test_macros(7) */
void assert_perror(int errnum);
If the macro
was defined at the moment
was last included, the macro
generates no code, and hence does nothing at all.
Otherwise, the macro
prints an error message to standard error and terminates the program
The message contains the filename, function name and
line number of the macro call, and the output of
No value is returned.
This is a GNU extension.
The purpose of the assert macros is to help programmers find bugs in
their programs, things that cannot happen unless there was a coding mistake.
However, with system or library calls the situation is rather different,
and error returns can happen, and will happen, and should be tested for.
Not by an assert, where the test goes away when
but by proper error handling code.
Never use this macro.
This page is part of release 3.66 of the Linux
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and the latest version of this page,
can be found at
- RETURN VALUE
- CONFORMING TO
- SEE ALSO
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using the manual pages.
Time: 21:42:59 GMT, July 12, 2014