unicons::validate#include <unicode_traits.hpp>template <class InputIt>
convert_result<InputIt> validate(InputIt first, InputIt last) noexcept
template <class Iterator>
struct convert_result
{
Iterator pos;
conv_errc ec;
};Validates the characters in the range, defined by [first, last).
| Parameter | Description |
|---|---|
| first, last | Input iterators that demarcate the range of characters to validate. The character type may be any integral type, signed or unsigned, with size in bits of 8, 16 or 32. |
The user's intention for source encoding scheme is deduced from the character width, UTF-8 from 8 bit characters, UTF-16 from 16 bit characters, and UTF-32 from 32 bit characters. The character type may be any integral type, signed or unsigned, with size in bits of 8, 16 or 32.
On success, returns a value of type convert_result with pos pointing to last in the range [first,last] where validation stopped, and a value initialized conv_errc.
On error, returns a value of type convert_result with pos pointing to the location in the range [first,last] where validation stopped. If the error code is not conv_errc(), the iterator points to the first character of the sequence that is illegal.