BDE 4.14.0 Production release
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#include <bslmf_selecttrait.h>
Evaluates t_TRAIT
for the specified (template parameter) T
type. The resulting Eval<T>
instantiation is derived from true_type
if t_TRAIT<T>
is derived from true_type
and false_type
if t_TRAIT<T>
is derived from false_type
. (More generally, Eval<T>
is derived from t_TRAIT<T>::type
.)