This meta-function selects t_IF_TRUE_TYPE if t_CONDITION is non-zero. and t_IF_FALSE_TYPE otherwise.
t_IF_TRUE_TYPE
t_CONDITION
t_IF_FALSE_TYPE
Declared in <bslmf_if.h>
<bslmf_if.h>
template< int t_CONDITION, class t_IF_TRUE_TYPE = Nil, class t_IF_FALSE_TYPE = Nil> struct If;
Type