Man page - zt_not_null(3)
Packages contas this manual
- zt_pack_boolean(3)
- zt_main(3)
- zt_location_at(3)
- zt_pack_unsigned(3)
- zt_test_case_func(3)
- zt_pack_nothing(3)
- zt_test_suite_func(3)
- zt_check(3)
- zt_pack_rune(3)
- zt_visit_test_case(3)
- zt_value(3)
- zt_pack_string(3)
- zt_pack_pointer(3)
- zt_claim(3)
- libzt(3)
- zt_visitor(3)
- zt_test(3)
- zt_location(3)
- zt_pack_integer(3)
apt-get install libzt-doc
Manual
| ZT_NOT_NULL(3) | Library Functions Manual (prm) | ZT_NOT_NULL(3) |
NAME
ZT_NOT_NULL,
zt_not_null — construct a
claim that a pointer is not NULL
SYNOPSIS
#include
<zt.h>
#define ZT_NOT_NULL(value) \
zt_not_null( \
ZT_CURRENT_LOCATION(), \
zt_pack_pointer((value), #value))
zt_claim
zt_not_null(zt_location location,
zt_value value);
DESCRIPTION
zt_not_null()
constructs a claim that a given pointer is not NULL. It should be used
through the macro ZT_NOT_NULL(), which passes source
code location and packs argument.
ZT_NOT_NULL()
can be useful, when coupled with
zt_assert(),
to ensure that an object was correctly produced, allocated or returned and
that the reminder of the test can inspect its properties using
zt_check().
IMPLEMENTATION NOTES
ZT_NOT_NULL() evaluates
value
only once.
RETURN VALUES
Both the macro and the function return a
zt_claim structure with the appropriate attributes
set. The returned claim is usually passed to
zt_check() or to
zt_assert().
SEE ALSO
zt_assert(3), zt_check(3), zt_claim(3), ZT_CMP_BOOL(3), ZT_CMP_RUNE(3), ZT_CMP_CSTR(3), ZT_CMP_INT(3), ZT_CMP_PTR(3), ZT_CMP_UINT(3), ZT_FALSE(3), ZT_NOT_NULL(3), ZT_NOT_NULL(3) zt_value(3),
HISTORY
The ZT_NOT_NULL() macro and the
zt_not_null() function first appeared in libzt
0.1
AUTHORS
Zygmunt Krynicki <me@zygoon.pl>
| January 12, 2020 | libzt 0.3.1 |