проверить ошибку и отменить (test errnum and abort)
Имя (Name)
assert_perror - test errnum and abort
Синопсис (Synopsis)
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <assert.h>
void assert_perror(int errnum);
Описание (Description)
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 error and terminates the program by
calling abort(3) if errnum is nonzero. The message contains the
filename, function name and line number of the macro call, and
the output of strerror(errnum).
Возвращаемое значение (Return value)
No value is returned.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│assert_perror() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
This is a GNU extension.
Ошибки (баги) (Bugs)
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 NDEBUG is defined, but by proper error
handling code. Never use this macro.
Смотри также (See also)
abort(3), assert(3), exit(3), strerror(3)
