Return bslmf::Tag<true>() if the first argument is an lvalue.
Declared in <bslmf_invokeresult.h>
static
bslmf::Tag<true>
checkLvalue(
/* implementation-defined */ arg,
int unused);
| Name | Description |
|---|---|
| arg | expression whose value category is being tested |
| unused | literal int used to prefer this overload |