mirror of
https://github.com/jart/cosmopolitan.git
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38921dc46b
This change introduces accumulate, addressof, advance, all_of, distance, array, enable_if, allocator_traits, back_inserter, bad_alloc, is_signed, any_of, copy, exception, fill, fill_n, is_same, is_same_v, out_of_range, lexicographical_compare, is_integral, uninitialized_fill_n, is_unsigned, numeric_limits, uninitialized_fill, iterator_traits, move_backward, min, max, iterator_tag, move_iterator, reverse_iterator, uninitialized_move_n This change experiments with rewriting the ctl::vector class to make the CTL design more similar to the STL. So far it has not slowed things down to have 42 #include lines rather than 2, since it's still almost nothing compared to LLVM's code. In fact the closer we can flirt with being just like libcxx, the better chance we might have of discovering exactly what makes it so slow to compile. It would be an enormous discovery if we can find one simple trick to solving the issue there instead. This also fixes a bug in `ctl::string(const string &s)` when `s` is big.
151 lines
4.7 KiB
C++
151 lines
4.7 KiB
C++
// -*- mode:c++; indent-tabs-mode:nil; c-basic-offset:4; coding:utf-8 -*-
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// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
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//
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// Copyright 2024 Justine Alexandra Roberts Tunney
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//
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// Permission to use, copy, modify, and/or distribute this software for
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// any purpose with or without fee is hereby granted, provided that the
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// above copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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#include "new.h"
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#include "libc/mem/mem.h"
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COSMOPOLITAN_C_START_
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static void*
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_ctl_alloc(size_t n, size_t a) noexcept
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{
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void* p;
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if (!(p = memalign(a, n)))
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__builtin_trap();
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return p;
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}
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static void*
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_ctl_alloc_nothrow(size_t n, size_t a, const ctl::nothrow_t&)
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{
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void* p;
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if (!(p = memalign(a, n)))
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__builtin_trap();
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return p;
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}
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static void*
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_ctl_alloc1(size_t n) noexcept
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{
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void* p;
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if (!(p = malloc(n)))
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__builtin_trap();
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return p;
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}
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static void*
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_ctl_alloc1_nothrow(size_t n, const ctl::nothrow_t&) noexcept
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{
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void* p;
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if (!(p = malloc(n)))
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__builtin_trap();
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return p;
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}
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static void*
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_ctl_ret(size_t, void* p) noexcept
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{
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return p;
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}
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static void
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_ctl_free(void* p) noexcept
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{
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free(p);
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}
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static void
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_ctl_nop(void*, void*) noexcept
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{
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}
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COSMOPOLITAN_C_END_
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#undef __weak_reference
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#define __weak_reference(P, A) P __attribute__((weak, alias(#A)))
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/* The ISO says that these should be replaceable by user code. It also says
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that the declarations for the first four (i.e. non placement-) operators
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new are implicitly available in each translation unit, including the std
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align_val_t parameter. (?) However, <new> also _defines_ the align_val_t
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type so you can’t just write your own. Our way through this morass is to
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supply ours as ctl::align_val_t and not implicitly declare anything, for
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now. If you have any brain cells left after reading this comment then go
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look at the eight operator delete weak references to free in the below. */
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__weak_reference(void*
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operator new(size_t, ctl::align_val_t),
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_ctl_alloc);
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__weak_reference(void*
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operator new(size_t,
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ctl::align_val_t,
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const ctl::nothrow_t&) noexcept,
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_ctl_alloc_nothrow);
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__weak_reference(void*
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operator new[](size_t, ctl::align_val_t),
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_ctl_alloc);
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__weak_reference(void*
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operator new[](size_t,
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ctl::align_val_t,
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const ctl::nothrow_t&) noexcept,
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_ctl_alloc_nothrow);
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__weak_reference(void*
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operator new(size_t),
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_ctl_alloc1);
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__weak_reference(void*
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operator new(size_t, const ctl::nothrow_t&) noexcept,
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_ctl_alloc1_nothrow);
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__weak_reference(void*
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operator new[](size_t),
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_ctl_alloc1);
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__weak_reference(void*
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operator new[](size_t, const ctl::nothrow_t&) noexcept,
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_ctl_alloc1_nothrow);
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// XXX clang-format currently mutilates these for some reason.
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// clang-format off
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__weak_reference(void* operator new(size_t, void*) noexcept, _ctl_ret);
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__weak_reference(void* operator new[](size_t, void*) noexcept, _ctl_ret);
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__weak_reference(void operator delete(void*) noexcept, _ctl_free);
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__weak_reference(void operator delete[](void*) noexcept, _ctl_free);
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wattribute-alias="
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__weak_reference(void operator delete(void*, ctl::align_val_t) noexcept,
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_ctl_free);
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__weak_reference(void operator delete[](void*, ctl::align_val_t) noexcept,
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_ctl_free);
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__weak_reference(void operator delete(void*, size_t) noexcept, _ctl_free);
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__weak_reference(void operator delete[](void*, size_t) noexcept, _ctl_free);
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__weak_reference(void operator delete(void*, size_t, ctl::align_val_t) noexcept,
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_ctl_free);
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__weak_reference(void operator delete[](void*, size_t, ctl::align_val_t)
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noexcept, _ctl_free);
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#pragma GCC diagnostic pop
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__weak_reference(void operator delete(void*, void*) noexcept, _ctl_nop);
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__weak_reference(void operator delete[](void*, void*) noexcept, _ctl_nop);
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