Struct std::heap::Heap
[−]
[src]
pub struct Heap;
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Trait Implementations
impl Default for Heap[src]
impl Debug for Heap[src]
fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>[src]
Formats the value using the given formatter. Read more
impl Alloc for Heap[src]
unsafe fn alloc(&mut self, layout: Layout) -> Result<*mut u8, AllocErr>[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Returns a pointer meeting the size and alignment guarantees of layout. Read more
fn oom(&mut self, err: AllocErr) -> ![src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Allocator-specific method for signaling an out-of-memory condition. Read more
unsafe fn dealloc(&mut self, ptr: *mut u8, layout: Layout)[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Deallocate the memory referenced by ptr. Read more
fn usable_size(&self, layout: &Layout) -> (usize, usize)[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Returns bounds on the guaranteed usable size of a successful allocation created with the specified layout. Read more
unsafe fn realloc(
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<*mut u8, AllocErr>[src]
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<*mut u8, AllocErr>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Returns a pointer suitable for holding data described by new_layout, meeting its size and alignment guarantees. To accomplish this, this may extend or shrink the allocation referenced by ptr to fit new_layout. Read more
unsafe fn alloc_zeroed(&mut self, layout: Layout) -> Result<*mut u8, AllocErr>[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Behaves like alloc, but also ensures that the contents are set to zero before being returned. Read more
unsafe fn alloc_excess(&mut self, layout: Layout) -> Result<Excess, AllocErr>[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Behaves like alloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data. Read more
unsafe fn realloc_excess(
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<Excess, AllocErr>[src]
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<Excess, AllocErr>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Behaves like realloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data. Read more
unsafe fn grow_in_place(
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<(), CannotReallocInPlace>[src]
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<(), CannotReallocInPlace>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Attempts to extend the allocation referenced by ptr to fit new_layout. Read more
unsafe fn shrink_in_place(
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<(), CannotReallocInPlace>[src]
&mut self,
ptr: *mut u8,
layout: Layout,
new_layout: Layout
) -> Result<(), CannotReallocInPlace>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Attempts to shrink the allocation referenced by ptr to fit new_layout. Read more
fn alloc_one<T>(&mut self) -> Result<Unique<T>, AllocErr>[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Allocates a block suitable for holding an instance of T. Read more
unsafe fn dealloc_one<T>(&mut self, ptr: Unique<T>)[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Deallocates a block suitable for holding an instance of T. Read more
fn alloc_array<T>(&mut self, n: usize) -> Result<Unique<T>, AllocErr>[src]
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Allocates a block suitable for holding n instances of T. Read more
unsafe fn realloc_array<T>(
&mut self,
ptr: Unique<T>,
n_old: usize,
n_new: usize
) -> Result<Unique<T>, AllocErr>[src]
&mut self,
ptr: Unique<T>,
n_old: usize,
n_new: usize
) -> Result<Unique<T>, AllocErr>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Reallocates a block previously suitable for holding n_old instances of T, returning a block suitable for holding n_new instances of T. Read more
unsafe fn dealloc_array<T>(
&mut self,
ptr: Unique<T>,
n: usize
) -> Result<(), AllocErr>[src]
&mut self,
ptr: Unique<T>,
n: usize
) -> Result<(), AllocErr>
🔬 This is a nightly-only experimental API. (allocator_api #32838)
the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector
Deallocates a block suitable for holding n instances of T. Read more
impl Clone for Heap[src]
fn clone(&self) -> Heap[src]
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src]
Performs copy-assignment from source. Read more