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add mi_new_realloc(n) to support C++ style reallocation that raises std::bad_alloc on out-of-memory

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daan 2020-01-20 15:41:56 -08:00
parent 146899af8a
commit 3957b2fd28
2 changed files with 24 additions and 1 deletions
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6
include/mimalloc.h
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@ -341,11 +341,15 @@ mi_decl_export void mi_free_size(void* p, size_t size) mi_attr_noexcept;
mi_decl_export void mi_free_size_aligned(void* p, size_t size, size_t alignment) mi_attr_noexcept;
mi_decl_export void mi_free_aligned(void* p, size_t alignment) mi_attr_noexcept;
// The `mi_new` wrappers implement C++ semantics on out-of-memory instead of directly returning `NULL`.
// (and call `std::get_new_handler` and potentially raise a `std::bad_alloc` exception).
mi_decl_export void* mi_new(size_t size) mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_export void* mi_new_n(size_t count, size_t size) mi_attr_malloc mi_attr_alloc_size2(1,2);
mi_decl_export void* mi_new_aligned(size_t size, size_t alignment) mi_attr_malloc mi_attr_alloc_size(1) mi_attr_alloc_align(2);
mi_decl_export void* mi_new_nothrow(size_t size) mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_export void* mi_new_aligned_nothrow(size_t size, size_t alignment) mi_attr_malloc mi_attr_alloc_size(1) mi_attr_alloc_align(2);
mi_decl_export void* mi_new_n(size_t count, size_t size) mi_attr_malloc mi_attr_alloc_size2(1, 2);
mi_decl_export void* mi_new_realloc(void* p, size_t newsize) mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_export void* mi_new_reallocn(void* p, size_t newcount, size_t size) mi_attr_malloc mi_attr_alloc_size2(2, 3);
#ifdef __cplusplus
}