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assignment to true and false should throw const error #226

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StefanKarpinski opened this issue Oct 17, 2011 · 4 comments
Closed

assignment to true and false should throw const error #226

StefanKarpinski opened this issue Oct 17, 2011 · 4 comments
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@JeffBezanson
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bug Indicates an unexpected problem or unintended behavior

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@StefanKarpinski
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julia> true = 12
true

julia> false = "hello"
false
@ghost ghost assigned JeffBezanson Oct 17, 2011
JeffBezanson added a commit that referenced this issue Oct 17, 2011
@JeffBezanson
fixing issue #226, error on assigning to true or false
70c872e
@GeorgeXing
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This reminds me of fun things you can do in python!
In my python 2.6.6:

>>> True = not True
>>> False = not False
>>> (True, False)
(False, True)

@StefanKarpinski
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Ugh. That's horrible. And it actually switches the values. After doing that, True behaves like False and vice versa. All this implies that Python can't actually optimize this into non-branch code:

if True:
  # do something

@JeffBezanson
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But it's dynamic! It's so convenient!

@StefanKarpinski
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It is handy for opposite day.

StefanKarpinski pushed a commit that referenced this issue Feb 8, 2018
@timholy
Merge pull request #226 from JuliaLang/timholy-patch-1
9a72d8b 
Reword description of writemime changes
cmcaine added a commit to cmcaine/julia that referenced this issue Sep 24, 2020
@cmcaine
Use docstrings instead of type annotations (JuliaLang#226)
ffd20fe 
* Use docstrings instead of type annotations

Users often overdo it on the type annotations in a way that is
unidiomatic for Julia and contrary to the recommendations of experienced
Julia programmers like Lyndon White and the Julia core team.

To provide some guidance to users, I've added docstrings to all of the
exercise skeletons that I've removed annotations from (the first three
in the track).

* Be explicit about return type in leap.jl

* Quote a type in docstring
ViralBShah pushed a commit that referenced this issue Sep 9, 2023
@DilumAluthgeBot @DilumAluthge
🤖 [master] Bump the Downloads stdlib from f97c72f to 8a614d5 (#51246)
3fc4f6b 
Stdlib: Downloads
URL: https://github.com/JuliaLang/Downloads.jl.git
Stdlib branch: master
Julia branch: master
Old commit: f97c72f
New commit: 8a614d5
Julia version: 1.11.0-DEV
Downloads version: 1.6.0(It's okay that it doesn't match)
Bump invoked by: @DilumAluthge
Powered by:
[BumpStdlibs.jl](https://github.com/JuliaLang/BumpStdlibs.jl)

Diff:
JuliaLang/Downloads.jl@f97c72f...8a614d5

```
$ git log --oneline f97c72f..8a614d5
8a614d5 Skip flakey "concurrent requests" tests on windows (#228)
246504e add a small precompile workload (#226)
3ed0f08 Document how to bypass the 20-second timeout (#222)
```

Co-authored-by: Dilum Aluthge <dilum@aluthge.com>
Keno pushed a commit that referenced this issue Oct 9, 2023
@KristofferC
prevent expensive compilation of map (#226)
f649e4f
KristofferC pushed a commit that referenced this issue Jan 16, 2024
@DilumAluthgeBot @DilumAluthge
🤖 [backports-release-1.10] Bump the Downloads stdlib from f97c72f to …
aaaf5de 
…ead289a (#52886)

Stdlib: Downloads
URL: https://github.com/JuliaLang/Downloads.jl.git
Stdlib branch: release-1.10
Julia branch: backports-release-1.10
Old commit: f97c72f
New commit: ead289a
Julia version: 1.10.0
Downloads version: 1.6.0(It's okay that it doesn't match)
Bump invoked by: @IanButterworth
Powered by:
[BumpStdlibs.jl](https://github.com/JuliaLang/BumpStdlibs.jl)

Diff:
JuliaLang/Downloads.jl@f97c72f...ead289a

```
$ git log --oneline f97c72f..ead289a
ead289a Close Multi timers atexit. Add 1.6 CI (#234)
8a614d5 Skip flakey "concurrent requests" tests on windows (#228)
246504e add a small precompile workload (#226)
3ed0f08 Document how to bypass the 20-second timeout (#222)
```

Co-authored-by: Dilum Aluthge <dilum@aluthge.com>
Drvi pushed a commit to RelationalAI/julia that referenced this issue Jun 7, 2024
@DilumAluthgeBot @DilumAluthge @Drvi
🤖 [backports-release-1.10] Bump the Downloads stdlib from f97c72f to …
f64c6e2 
…ead289a (JuliaLang#52886)

Stdlib: Downloads
URL: https://github.com/JuliaLang/Downloads.jl.git
Stdlib branch: release-1.10
Julia branch: backports-release-1.10
Old commit: f97c72f
New commit: ead289a
Julia version: 1.10.0
Downloads version: 1.6.0(It's okay that it doesn't match)
Bump invoked by: @IanButterworth
Powered by:
[BumpStdlibs.jl](https://github.com/JuliaLang/BumpStdlibs.jl)

Diff:
JuliaLang/Downloads.jl@f97c72f...ead289a

```
$ git log --oneline f97c72f..ead289a
ead289a Close Multi timers atexit. Add 1.6 CI (JuliaLang#234)
8a614d5 Skip flakey "concurrent requests" tests on windows (JuliaLang#228)
246504e add a small precompile workload (JuliaLang#226)
3ed0f08 Document how to bypass the 20-second timeout (JuliaLang#222)
```

Co-authored-by: Dilum Aluthge <dilum@aluthge.com>
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@StefanKarpinski @JeffBezanson @GeorgeXing