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port over std_vector and std-allocator functionality from monomial propagation branch

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-09-26 21:15:07 -07:00
parent aaa587398e
commit 6559e5fb32
2 changed files with 26 additions and 0 deletions
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23
src/util/memory_manager.h
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@ -128,6 +128,29 @@ void dealloc_svect(T * ptr) {
memory::deallocate(ptr);
}
template <typename T>
struct std_allocator {
using value_type = T;
// the constructors must be provided according to cpp docs
std_allocator() = default;
template <class U> constexpr std_allocator(const std_allocator<U>&) noexcept {}
T* allocate(std::size_t n) {
return static_cast<T*>(memory::allocate(n * sizeof(T)));
}
void deallocate(T* p, std::size_t n) {
memory::deallocate(p);
}
};
// the comparison operators must be provided according to cpp docs
template <class T, class U>
bool operator==(const std_allocator<T>&, const std_allocator<U>&) { return true; }
template <class T, class U>
bool operator!=(const std_allocator<T>&, const std_allocator<U>&) { return false; }
struct mem_stat {
};

3
src/util/vector.h
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@ -33,6 +33,7 @@ Revision History:
#include "util/memory_manager.h"
#include "util/hash.h"
#include "util/z3_exception.h"
#include <vector>
// disable warning for constant 'if' expressions.
// these are used heavily in templates.
@ -40,6 +41,8 @@ Revision History:
#pragma warning(disable:4127)
#endif
template <typename T>
using std_vector = std::vector<T, std_allocator<T>>;
#if 0