Update contrib/restricted/boost/locale to 1.88.0

commit_hash:87b595328ea79c6ba38cb973580804486ca4a3ff

1 files changed, 37 insertions, 0 deletions

diff --git a/contrib/restricted/boost/locale/src/shared/mo_lambda.hpp b/contrib/restricted/boost/locale/src/shared/mo_lambda.hpp
new file mode 100644
index 00000000000..ff415175def
--- /dev/null
+++ b/contrib/restricted/boost/locale/src/shared/mo_lambda.hpp
@@ -0,0 +1,37 @@
+//
+// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
+// Copyright (c) 2021-2023 Alexander Grund
+//
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#ifndef BOOST_SRC_LOCALE_MO_LAMBDA_HPP_INCLUDED
+#define BOOST_SRC_LOCALE_MO_LAMBDA_HPP_INCLUDED
+
+#include <boost/locale/config.hpp>
+#include <memory>
+
+namespace boost { namespace locale { namespace gnu_gettext { namespace lambda {
+
+    struct BOOST_SYMBOL_VISIBLE expr {
+        using value_type = long long;
+        virtual value_type operator()(value_type n) const = 0;
+        virtual ~expr() = default;
+    };
+    using expr_ptr = std::unique_ptr<expr>;
+
+    class plural_expr {
+        expr_ptr p_;
+
+    public:
+        plural_expr() = default;
+        explicit plural_expr(expr_ptr p) : p_(std::move(p)) {}
+        expr::value_type operator()(expr::value_type n) const { return (*p_)(n); }
+        explicit operator bool() const { return static_cast<bool>(p_); }
+    };
+
+    BOOST_LOCALE_DECL plural_expr compile(const char* c_expression);
+
+}}}} // namespace boost::locale::gnu_gettext::lambda
+
+#endif