ZT_FALSE, zt_false

#include <zt.h>

#define ZT_FALSE(value) \
  zt_false( \
    ZT_CURRENT_LOCATION(), \
    zt_pack_boolean((value), #value)) \

zt_false() constructs a claim that a given value is false. It should be used through the macro ZT_FALSE(), which passes source code location and packs argument.

zt_false() can be used to check custom properties by calling arbitrary verification logic. The disadvantage of this approach is that on failure, the error message cannot precisely explain the problem.

ZT_FALSE() evaluates value only once.

Both the macro and the function return a claim structure with the right attributes set. The returned claim is usually passed to zt_check() or to zt_assert().

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_NULL(3), zt_check(3),

The ZT_FALSE() macro and the zt_false() function first appeared in libzt 0.1

Zygmunt Krynicki <me@zygoon.pl>