clac | Command-line , stack-based calculator with postfix notation

by soveran C Version: 0.3.3 License: BSD-2-Clause

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | clac Summary

clac is a C library. clac has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A command line, stack-based calculator with postfix notation that displays the stack contents at all times. As you type, the stack changes are reflected immediately. In a stack-based postfix calculator, entering a number pushes it on a stack, and arithmetic operations pop their arguments from the stack and push the result. As all the operations take a fix number of arguments, there's no room for ambiguity: parenthesis and operator precedence are not needed. Postfix notation is also known as reverse Polish notation, or RPN.

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Support

clac has a low active ecosystem.

It has 337 star(s) with 30 fork(s). There are 10 watchers for this library.

It had no major release in the last 12 months.

There are 5 open issues and 11 have been closed. On average issues are closed in 80 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of clac is 0.3.3

Quality

clac has 0 bugs and 0 code smells.

Security

clac has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

clac code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

clac is licensed under the BSD-2-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

clac releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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clac Key Features

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clac Examples and Code Snippets

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Community Discussions

Trending Discussions on clac

Calling up a def: function in an IF statement

TypeError: 'str' object is not callable

Why does the Linux Kernel copy implementation use the AC flag?

QUESTION

Calling up a def: function in an IF statement

Asked 2021-Jan-29 at 05:16

It's been a while since I used python (been studying CISCO IOS) so I'm bit rusty. I have forgotten how to assign a function to an IF statement.

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ANSWER

Answered 2021-Jan-29 at 04:38

Replacing str(network) with "network" and str(port) with "port" should work.

Source https://stackoverflow.com/questions/65948790

QUESTION

TypeError: 'str' object is not callable

Asked 2020-Nov-29 at 13:09

I need to make hash in GUI and I am a beginner So please help the problem is: Exception in Tkinter callback Traceback (most recent call last): File tkinter_init_.py, line 1883, in call return self.func(*args) ,\ line 21, in md5 ,\answermd5 = md55(md55).encode().hexdigest() TypeError: 'str' object is not callable

the code is:

...

ANSWER

Answered 2020-Nov-29 at 13:09

First, md55is the text,not function.

Second,encode should be called by md55 but not result of md5.

Last,you shouldn't name your function as md5 because you need another md5.

Change To

Source https://stackoverflow.com/questions/65060254

QUESTION

Why does the Linux Kernel copy implementation use the AC flag?

Asked 2020-Mar-08 at 17:39

The implementation of copy_user_enhanced_fast_string in the Linux Kernel copy routine uses stac/clac in the epilog and prolog. perf annotate shows the following code:

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ANSWER

Answered 2020-Mar-07 at 15:52

Normally all page access checks are disabled in supervisor-mode and the kernel can read or write to any page regardless of whether its read-only or marked as a supervisor or user page. However if Supervisor-Mode Access Protection is enabled (CR4.SMAP = 1), then the AC flag controls whether the kernel can read or write user-mode pages. If EFLAGS.AC is 0 then reading or writing to user-mode pages will cause a page-fault exception. If EFLAGS.AC is 1 then kernel is permitted to read and write user mode pages.

The STAC and CLAC instructions were invented to allow quick and easy changing of the AC flag in code like in your example. By setting EFLAGS.AC the REP MOVSB instruction is allowed to access user-mode pages. By clearing EFLAGS.AC at the end, the kernel is once again protected against accidental user-mode accesses that could be exploited by malicious code.

Source https://stackoverflow.com/questions/60578975

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