#37605

Committed 30 Aug 2023 07:57AM UTC coverage: 86.2% (-0.3%) from 86.533%

Build # #37605

Build Type

push

local

Committed by

web-flow

Commit Message

Speed up `logdet` for diagonal and triangular matrices (#50950)

Run Details

4 of 4 new or added lines in 1 file covered. (100.0%)

73227 of 84950 relevant lines covered (86.2%)

12640960.64 hits per line

Source File
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82.61

/stdlib/Base64/src/buffer.jl

# This file is a part of Julia. License is MIT: https://julialang.org/license

# Data buffer for pipes.
mutable struct Buffer
    data::Vector{UInt8}
    ptr::Ptr{UInt8}
    size::Int

    function Buffer(bufsize)
        data = Vector{UInt8}(undef, bufsize)
        return new(data, pointer(data), 0)
    end
end

Base.empty!(buffer::Buffer) = buffer.size = 0
Base.getindex(buffer::Buffer, i::Integer) = unsafe_load(buffer.ptr, i)
Base.setindex!(buffer::Buffer, v::UInt8, i::Integer) = unsafe_store!(buffer.ptr, v, i)
Base.firstindex(buffer::Buffer) = 1
Base.lastindex(buffer::Buffer) = buffer.size
Base.pointer(buffer::Buffer) = buffer.ptr
capacity(buffer::Buffer) = Int(pointer(buffer.data, lastindex(buffer.data) + 1) - buffer.ptr)

function consumed!(buffer::Buffer, n::Integer)
    @assert n ≤ buffer.size
    buffer.ptr += n
    buffer.size -= n
end

function read_to_buffer(io::IO, buffer::Buffer)
    offset = buffer.ptr - pointer(buffer.data)
    copyto!(buffer.data, 1, buffer.data, offset + 1, buffer.size)
    buffer.ptr = pointer(buffer.data)
    if !eof(io)
        n = min(bytesavailable(io), capacity(buffer) - buffer.size)
        unsafe_read(io, buffer.ptr + buffer.size, n)
        buffer.size += n
    end
    return
end

1	# This file is a part of Julia. License is MIT: https://julialang.org/license
2
3	# Data buffer for pipes.
4	mutable struct Buffer
5	data::Vector{UInt8}
6	ptr::Ptr{UInt8}
7	size::Int
8
9	function Buffer(bufsize)	1✔
10	data = Vector{UInt8}(undef, bufsize)	1✔
11	return new(data, pointer(data), 0)	1✔
12	end
13	end
14
15	Base.empty!(buffer::Buffer) = buffer.size = 0	×
16	Base.getindex(buffer::Buffer, i::Integer) = unsafe_load(buffer.ptr, i)	348✔
17	Base.setindex!(buffer::Buffer, v::UInt8, i::Integer) = unsafe_store!(buffer.ptr, v, i)	×
18	Base.firstindex(buffer::Buffer) = 1	×
19	Base.lastindex(buffer::Buffer) = buffer.size	100✔
20	Base.pointer(buffer::Buffer) = buffer.ptr	×
21	capacity(buffer::Buffer) = Int(pointer(buffer.data, lastindex(buffer.data) + 1) - buffer.ptr)	1✔
22
23	function consumed!(buffer::Buffer, n::Integer)	3✔
24	@assert n ≤ buffer.size	3✔
25	buffer.ptr += n	3✔
26	buffer.size -= n	3✔
27	end
28
29	function read_to_buffer(io::IO, buffer::Buffer)	2✔
30	offset = buffer.ptr - pointer(buffer.data)	2✔
31	copyto!(buffer.data, 1, buffer.data, offset + 1, buffer.size)	2✔
32	buffer.ptr = pointer(buffer.data)	2✔
33	if !eof(io)	2✔
34	n = min(bytesavailable(io), capacity(buffer) - buffer.size)	1✔
35	unsafe_read(io, buffer.ptr + buffer.size, n)	1✔
36	buffer.size += n	1✔
37	end
38	return	2✔
39	end

JuliaLang / julia / #37605

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