Return the formatting argument at zero-based index id.
Declared in <bslfmt_format_context.h>
basic_format_context<t_OUT, t_CHAR>::Arg
arg(size_t id) const noexcept;If id is not less than the number of contained arguments, a default-constructed basic_format_arg object is returned.
the argument at position id
| Name | Description |
|---|---|
| id | zero-based argument index |