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c688b401d3
Provide a standardized way to handle the C++ "standard" headers
customized to be used with current CMake C++ standard constraints.
Offer under directory `cm` headers which can be used as direct
replacements of the standard ones. For example:
#include <cm/string_view>
can be used safely for CMake development in place of the `<string_view>`
standard header.
Fixes: #19491
42 lines
1.0 KiB
C++
42 lines
1.0 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#ifndef cm_static_string_view_hxx
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#define cm_static_string_view_hxx
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <cm/string_view>
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#include <cstddef>
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namespace cm {
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/** A string_view that only binds to static storage.
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*
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* This is used together with the `""_s` user-defined literal operator
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* to construct a type-safe abstraction of a string_view that only views
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* statically allocated strings. These strings are const and available
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* for the entire lifetime of the program.
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*/
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class static_string_view : public string_view
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{
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static_string_view(string_view v)
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: string_view(v)
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{
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}
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friend static_string_view operator"" _s(const char* data, size_t size);
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};
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/** Create a static_string_view using `""_s` literal syntax. */
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inline static_string_view operator"" _s(const char* data, size_t size)
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{
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return string_view(data, size);
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}
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} // namespace cm
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using cm::operator"" _s;
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#endif
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