gcc
0.30000000000000004
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gcc | 0.30000000000000004 | |
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81 | 245 | |
8,704 | 1,394 | |
1.6% | - | |
9.9 | 2.0 | |
about 12 hours ago | 18 days ago | |
C | CSS | |
GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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gcc
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C++ Safety, in Context
> It's true, this was a CVE in Rust and not a CVE in C++, but only because C++ doesn't regard the issue as a problem at all. The problem definitely exists in C++, but it's not acknowledged as a problem, let alone fixed.
Can you find a link that substantiates your claim? You're throwing out some heavy accusations here that don't seem to match reality at all.
Case in point, this was fixed in both major C++ libraries:
https://github.com/gcc-mirror/gcc/commit/ebf6175464768983a2d...
https://github.com/llvm/llvm-project/commit/4f67a909902d8ab9...
So what C++ community refused to regard this as an issue and refused to fix it? Where is your supporting evidence for your claims?
- Std: Clamp generates less efficient assembly than std:min(max,std:max(min,v))
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Converting the Kernel to C++
Somewhat related: In 2020 gcc bumped the requirement for bootstrapping to be a C++11 compiler [0]. Would have been fun to see the kernel finally adopt C++14 as the author suggested.
I don't think that Linus will allow this since he just commented that he will allow rust in drivers and major subsystems [1].
I do found it pretty funny that even Linus is also not writing any rust code, but is reading rust code.
I would have hoped see more answers or see something in here from actual kernel developers.
0: https://github.com/gcc-mirror/gcc/commit/5329b59a2e13dabbe20...
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Understanding Objective-C by transpiling it to C++
> They’re saying that a lot of the restrictions makes things much harder than other languages. Hence the general problem rust has where a lot of trivial tasks in other languages are extremely challenging.
Like what? So far the discussion has revolved around rewriting a linked list, which people generally shouldn't ever need to do because it's included in the standard lib for most languages. And it's a decidedly nontrivial task to do as well as the standard lib when you don't sacrifice runtime overhead to be able to handwave object lifecycle management.
- C++: https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-...
- Rust: https://doc.rust-lang.org/beta/src/alloc/collections/linked_...
> No need to get defensive, no one is arguing that rust doesn’t do a lot of things well.
That's literally what bsaul is arguing in another comment. :)
> You’re talking up getting a safe implementation in C, but what matters is “can I get the same level of safety with less complexity in any language”, and the answer is yes: Java and c# implementations of a thread safe linked list are trivial.
Less perceived complexity. In Java and C# you're delegating the responsibility of lifecycle management to garbage collectors. For small to medium scale web apps, the added complexity will be under the hood and you won't have to worry about it. For extreme use cases, the behavior and overhead of the garbage collector does became relevant.
If you factor in the code for the garbage collector that Java and C# depend on, the code complexity will tilt dramatically in favor of C++ or Rust.
However, it's going to be non-idiomatic to rewrite a garbage collector in Java or C# like it is to rewrite a linked list in Rust. If we consider the languages as they're actually used, rather than an academic scenario which mostly crops up when people expect the language to behave like C or Java, the comparison is a lot more favorable than you're framing it as.
> If I wanted I could do it in c++ though the complexity would be more than c# and Java it would be easier than rust.
You can certainly write a thread-safe linked list in C++, but then the enforcement of any assumptions you made about using it will be a manual burden on the user. This isn't just a design problem you can solve with more code - C++ is incapable of expressing the same restrictions as Rust, because doing so would break compatibility with C++ code and the language constructs needed to do so don't exist.
So it's somewhat apples and oranges here. Yes, you may have provided your team with a linked list, but it will either
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Committing to Rust for Kernel Code
GCC is also written in C++, and has had C++ deps since 2013:
https://github.com/gcc-mirror/gcc/blob/master/gcc/c/c-parser...
- Spitbol 360: an implementation of SNOBOL4 for IBM 360 compatible computers
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are most computer programming languages public domain, or do their creators get a say in what you do with them?
Compliers/Interpreters are also very commonly open source (here is the source code for a popular C compiler). That means you can even modify the compiler's code and change its behavior if you wanted to.
- Learn to write production quality STL like classes
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Which compiler is conforming here?
according to this commit, the story here seems to be much more interessting than I initially anticipated.
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My favorite C compiler flags during development
For a more detailed explanation, see [2]. (Also the inspiration for the above example,)
[1] https://en.m.wikipedia.org/wiki/Transitive_relation
[2] https://github.com/gcc-mirror/gcc/commit/50ddbd0282e06614b29...
0.30000000000000004
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What even is a JSON number?
https://0.30000000000000004.com/
Although it would be good to move in the direction of using a BigDecimal equivalent by default when ingesting unknown data.
- Floating Point Math
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Working with Numpy floats and Forex financial instruments
There's no such thing as precision for floats. Floating-point calculations are always inaccurate: read this: https://0.30000000000000004.com/
- Just learned the difference between decimal and float
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how do i make the decimals not fucked up
Edit: This specific example even has its own website: https://0.30000000000000004.com/
- why doest this loop ever terminate?
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Decoding Why 0.6 + 0.3 = 0.8999999999999999 in JS and How to Solve?
In everyday math, we know adding 0.6 + 0.3 equals 0.9, right? But when we turn to computers it results in 0.8999999999999999. Surprisingly, this doesn’t just happen only in JavaScript; it’s the same in many programming languages like Python, Java, C too. Also, it’s not just about this specific calculation. There are many more decimal calculations showing similar not-quite-right answers.
- Lies My Calculator and Computer Told Me [pdf]
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64-Bit Bank Balances ‘Ought to Be Enough for Anybody’?
Surprisingly common values like 0.1 don't have a precise representation in binary for most formats, including standard floating point number formats. See https://0.30000000000000004.com/ for more detail than you can shake a stick at.
Also if the local tax code states using 5 decimal places for intermediate values when you will introduce “errors” using formats that give greater precision as well as those that give less precision. Having work on mortgage and pension calculations I can state that the (very) small errors seen at individual steps because of this can balloon significantly through repeated calculations.
Furthmore, the name floating point gives away the other issue. Floating point numbers are accurate to a given number of significant figures not decimal places. For large numbers any decimal places you have in the result are at best an estimate, and as above any rounding errors at each stage can compound into a much larger error by the end of a calculation.
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I don't get these people
You'll love this https://0.30000000000000004.com/
What are some alternatives?
CMake - Mirror of CMake upstream repository
glibc - Unofficial mirror of sourceware glibc repository. Updated daily.
rtl8192eu-linux-driver - Drivers for the rtl8192eu chipset for wireless adapters (D-Link DWA-131 rev E1 included!)
v8.dev - The source code of v8.dev, the official website of the V8 project.
llvm-project - The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
proposal-decimal - Built-in decimal datatype in JavaScript
STL - MSVC's implementation of the C++ Standard Library.
import-maps - How to control the behavior of JavaScript imports
cobol-on-wheelchair - Micro web-framework for COBOL
media
qemu
SoftFloat-3a - SoftFloat-3a for Hercules. This is a modification of Dr. John Hauser’s SoftFloat-3a package. File COPYING.txt contains copyright and license information. File BUILDING.txt contains instructions to build SoftFloat-3a For Hercules. For complete information about the changes made to SoftFloat-3a, visit the package Wiki: