Parses a spec value that may be a literal integer or a {}-style dynamic argument reference.
Declared in <mp-units/utility/format.h>
template<
std::forward_iterator It,
typename Char = std::iter_value_t<It>>
[[nodiscard]]
constexpr
It
parse_dynamic_spec(
It begin,
It end,
int& value,
fmt_arg_ref<Char>& ref,
std::basic_format_parse_context<Char>& ctx);an iterator past the parsed spec value, or begin when neither form is present
The return value should not be discarded.
| Name | Description |
|---|---|
| begin | the beginning of the range to parse; must be non-empty |
| end | the end of the range to parse |
| value | updated with the parsed value when it is a literal integer |
| ref | updated with the referenced argument when the value is {}-style dynamic |
| ctx | the format parse context, used to validate a dynamic argument reference |