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https://github.com/jart/cosmopolitan.git
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9a5a13854d
* Add ctl utility.h Implements forward, move, swap, and declval. This commit also adds a def for nullptr_t to cxx.inc. We need it now because the CTL headers stopped including anything from libc++, so we no longer get their basic types. * Use ctl::swap in string The STL spec says that swap is located in the string_view header anyawy. Performance-wise this is a noop, but it’s slightly cleaner.
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
#define COSMOPOLITAN_CXX_START_ namespace cosmo {
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#define COSMOPOLITAN_CXX_END_ }
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#define COSMOPOLITAN_CXX_USING_ using namespace cosmo;
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#define COSMOPOLITAN_C_START_ extern "C" {
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#define COSMOPOLITAN_C_END_ }
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#if !defined(__builtin_types_compatible_p) && !__has_builtin(types_compatible_p)
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#if 0 /* todo jart whyyyy */
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#include "libc/integral/cxxtypescompat.inc"
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#define __builtin_types_compatible_p(A, B) \
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(__cxx_types_compatible<A, B>::_value)
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#else
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#define __builtin_types_compatible_p(A, B) 0
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#endif
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#endif
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#if !defined(__builtin_choose_expr) && !__has_builtin(choose_expr)
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#if 1
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template <bool _P, typename _T, typename _U>
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struct __cxx_choose_expr {
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__cxx_choose_expr(_T _a, _U _b) : _value(_a) {
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}
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const _T _value;
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};
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template <typename _T, typename _U>
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struct __cxx_choose_expr<false, _T, _U> {
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__cxx_choose_expr(_T _a, _U _b) : _value(_b) {
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}
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const _U _value;
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};
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#define __builtin_choose_expr(X, A, B) \
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(__cxx_choose_expr<X, typeof(A), typeof(B)>(A, B)._value)
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#else
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#define __builtin_choose_expr(X, A, B) ((X) ? (A) : (B))
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#endif
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#endif
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#ifdef __aarch64__
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/* todo jart whyyyy */
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#define _Float16 __fp16
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#endif
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using nullptr_t = decltype(nullptr);
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