Chengyu Han

中文的简介：[极简的 PNG 编码函数 svpng() - 知乎](https://zhuanlan.zhihu.com/p/26525083) 你声明了一张 `w=2560, h=1280, alpha=false` 实际呢？ 输入的 img rgb 也就 `128*256*4`，长宽不对，而且多了 alpha 通道。 仔细看看 [usage](https://github.com/miloyip/svpng#usage)

先大概看看，知道 PNG 的文件格式。 极简的 PNG 大概分为： - 签名 x1 `b"\x89PNG\r\n\32\n"` - 数据块 1. IHDR(header chunk) x1 2. IDAT(image data chunk) xN 3. IEND(image trailer chunk) x1: `b"IEND"` + crc 基本数据块部分结尾都是...

Why do you remove this method? > `bind(c::Channel, task::Task)` ```jl julia> VERSION v"1.8.0-rc3" julia> methods(bind) # 4 methods for generic function "bind": [1] bind(c::Channel, task::Task) in Base at channels.jl:253 [2]...

An interesting finding is that the x86 version (70min) takes twice as long to test as the x64 version (32min). Maybe it's just some coincidence, but I'll run the x86...

Closed by #46249

> Apple clang version 11.0.3 (clang-1103.0.32.62) > Target: x86_64-apple-darwin21.4.0 > > https://buildkite.com/julialang/julia-master/builds/14479#01825f64-7e12-49b9-922d-584a2b10d7e0/321-324

Any more comments?

  missing `_ZSt14__once_functor` in `libstdc++-6.dll` ---- Update: What is the full version number of our gcc12? Maybe we need this patch? > libstdc++: Check for TLS support on mingw...

Workaround: `\N{U+XXXX}` > The escape sequence \N{U+} is recognized as another way of specifying a Unicode character by code point in a UTF mode. > https://www.pcre.org/current/doc/html/pcre2unicode.html ```jl julia> '和' '和':...

Why does your `BigFloat` print so few significant digits? What is the output of `precision(BigFloat)` in julia. ```jl julia> precision(BigFloat) 256 julia> BigFloat(2.1)-BigFloat(2.0) 0.100000000000000088817841970012523233890533447265625 julia> BigFloat(2.1) 2.100000000000000088817841970012523233890533447265625 julia> BigFloat(2.0) 2.0...