string_contains.h

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#pragma once
 
#include "di/container/algorithm/contains.h"
#include "di/container/algorithm/contains_subrange.h"
#include "di/container/string/constant_string.h"
#include "di/container/string/string_begin.h"
#include "di/container/string/string_end.h"
#include "di/container/view/single.h"
 
namespace di::container::string {
template<concepts::detail::ConstantString Str, typename Enc = meta::Encoding<Str>>
constexpr auto contains(Str const& string, meta::EncodingCodePoint<Str> code_point) -> bool {
    return container::contains(View(string::begin(string), string::end(string)), code_point);
}
 
template<concepts::detail::ConstantString Str, typename Enc = meta::Encoding<Str>,
         concepts::ContainerCompatible<meta::EncodingCodePoint<Enc>> Con>
requires(concepts::SameAs<Enc, meta::Encoding<Con>>)
constexpr auto contains(Str const& string, Con&& container) -> bool {
    return container::contains_subrange(View(string::begin(string), string::end(string)),
                                        util::forward<Con>(container));
}
}