NAME

       ZT_TRUE, zt_true — construct a claim that a value is true

SYNOPSIS

       #include <zt.h>

       #define ZT_TRUE(value) \
         zt_true( \
           ZT_CURRENT_LOCATION(), \
           zt_pack_boolean((value), #value)) \

       zt_claim
       zt_true(zt_location location, zt_value value);

DESCRIPTION

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

       zt_true() 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.

IMPLEMENTATION NOTES

       ZT_TRUE() 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_NULL(3) zt_value(3),

HISTORY

       The ZT_TRUE() macro and the zt_true() function first appeared in libzt 0.1

AUTHORS

       Zygmunt Krynicki <me@zygoon.pl>

libzt 0.3.1                                     January 12, 2020                                      ZT_TRUE(3)