Originální popis anglicky:
assert - abort the program if assertion is false
Návod, kniha: Linux Programmer's Manual
#include <assert.h>
void assert(scalar expression);
If the macro
NDEBUG was defined at the moment
<assert.h> was
last included, the macro
assert() generates no code, and hence does
nothing at all. Otherwise, the macro
assert() prints an error message
to standard output and terminates the program by calling
abort() if
expression is false (i.e., compares equal to zero).
The purpose of this macro is to help the programmer find bugs in his program.
The message "assertion failed in file foo.c, function do_bar(), line
1287" is of no help at all to a user.
No value is returned.
ISO9899 (ANSI C). In the 1990 standard,
expression is required to be of
type
int and undefined behavior results if it is not, but in the 1999
standard it may have any scalar type.
assert() is implemented as a macro; if the expression tested has
side-effects, program behaviour will be different depending on whether
NDEBUG is defined. This may create Heisenbugs which go away when
debugging is turned on.
abort(3),
assert_perror(3),
exit(3)
