Originální popis anglicky:
assert_perror - test errnum and abort
Návod, kniha: Linux Programmer's Manual
#include <assert.h>
void assert_perror(int errnum);
If the macro
NDEBUG was defined at the moment
<assert.h> was
last included, the macro
assert_perror() generates no code, and hence
does nothing at all. Otherwise, the macro
assert_perror() prints an
error message to standard output and terminates the program by calling
abort() if
errnum is nonzero. The message contains the filename,
function name and line number of the macro call, and the output of
strerror(errnum).
No value is returned.
This is a GNU extension.
The purpose of the assert macros is to help the programmer find bugs in his
program, 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 NDEBUG is defined, but by proper error
handling code. Never use this macro.
abort(3),
assert(3),
exit(3),
strerror(3)
