ASSERT_PERROR(3) Linux Programmer's Manual ASSERT_PERROR(3)
NAME
assert_perror - test errnum and abort
SYNOPSIS
#include <assert.h>
void assert_perror(int errnum);
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 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 str-
error(errnum).
RETURN VALUE
No value is returned.
CONFORMING TO
This is a GNU extension.
BUGS
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.
SEE ALSO
exit(3), abort(3), assert(3), strerror(3)
GNU
2002-08-25 ASSERT_PERROR(3)
