bit_mask | simple class that allows you to store data | Runtime Evironment library

by ryanong Ruby Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | bit_mask Summary

bit_mask is a Ruby library typically used in Retail, Server, Runtime Evironment applications. bit_mask has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

A simple class that allows you to store data in a bit mask. It automagically manages bit sizes and base conversion of binary bitmask.

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Quality

Security

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Support

bit_mask has a low active ecosystem.

It has 4 star(s) with 0 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

bit_mask has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of bit_mask is current.

Quality

bit_mask has no bugs reported.

Security

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

License

bit_mask is licensed under the MIT License. This license is Permissive.

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

Reuse

bit_mask releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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bit_mask Key Features

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bit_mask Examples and Code Snippets

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Community Discussions

Trending Discussions on bit_mask

Codechef December lunchtime 2019 stupid machine

C++ bit manipulation compiles with no errors on my system but godbolt compilers give warning/errors

Masking specific pattern from bitset

Using Inline Assembly in C for Xilinx Microblaze

Need help regarding lzss compression in C

QUESTION

Codechef December lunchtime 2019 stupid machine

Asked 2020-Jan-01 at 06:51

What is wrong with my code so that it got wrong for second test case. question link https://www.codechef.com/LTIME79B/problems/STUPMACH/

some part of question is as follows:

There are N boxes in a line (numbered 1 through N). Initially, the boxes are empty, and I need to use the machine to put tokens in them. For each valid i, the i-th box has a maximum capacity Si tokens. I can perform the following operation any number of times: choose an integer L (1≤L≤N) and put one token in each of the boxes 1,2,…,L.

find maximum number of token.

Logic is to add number which is minimum uptill index;

2 5 4 1 3

then 2+2+2+1+1=8 will be the answer.

...

ANSWER

Answered 2020-Jan-01 at 06:51

The issue is in the line ans=(ans+mn)%1000000007;. It should be ans=ans+mn; because it's not asked in the question to MOD the final answer by 10^9+7. The sum ans can exceed 10^9+7 because it's given in question constraints that 1≤Si≤10^9 for each valid i.

Source https://stackoverflow.com/questions/59550181

QUESTION

C++ bit manipulation compiles with no errors on my system but godbolt compilers give warning/errors

Asked 2019-Jun-23 at 09:58

Edit: Godbolt link for example here!

So I've got this example to show the macros I've made and their use case:

...

ANSWER

Answered 2019-Jun-23 at 09:58

So since #define bit_mask(size, offset) (~((unsigned long long)~0 << size) << offset) seems like it fixed the problem, I'll mark this as answered. If anyone posts that this wasn't the proper solution, and they provide something different, I'll accept their answer instead, provided it works.

Source https://stackoverflow.com/questions/56722099

QUESTION

Masking specific pattern from bitset

Asked 2018-Oct-26 at 02:58

Let there be a bitset represented by an int. Encoded into the bitset are values ranging from 0-15 in the following pattern 0x0f0f0f0f. How can I "push these individual values together" after I mask the bitset with the aforementioned pattern as a bitmask. e.g.

...

ANSWER

Answered 2018-Oct-26 at 02:58

You need to extract the bits you're interested in and shift them right. You can mask the bits you need at the same time, so there is no need to apply your bitmask first. Something like...

Source https://stackoverflow.com/questions/50808099

QUESTION

Using Inline Assembly in C for Xilinx Microblaze

Asked 2017-Sep-04 at 17:09

I have an application written in C with inline assembly for a Xilinx Microblaze core. My inline assembly has a delay task. Function "_delay_loop_X_x" delays exactly 4 cycles per loop of processor. The input signal determines the number of loop to be made. Function "_NOPx" is to achieve more precision. The function works fine, but at the end of the signal it gives twice extra delay. I'm afraid I use registers incorrectly. Can someone please check my assembly code?

For Microblaze I use this documentation: https://www.xilinx.com/support/documentation/sw_manuals/mb_ref_guide.pdf

Assembler code:

...

ANSWER

Answered 2017-Sep-04 at 17:09

Thinking about it more I don't really see how those loops should be Nx4 cycles.

Source https://stackoverflow.com/questions/46035496

QUESTION

Need help regarding lzss compression in C

Asked 2017-Apr-18 at 14:19

I had used this code from https://oku.edu.mie-u.ac.jp/~okumura/compression/lzss.c

This code was for file compression. I had modified it for a given string. For example :

d(2306):AuthorisationScheme:RADIUSserveratfd04:bd3:80e8:1::1usingPAPD/6LoWPANd(2306):WritingModule:SecurityConfigD/6LoWPANd(2306):WritingModule:RunCoordinatorD/6LoWPANd(2306):RequestingmoduleaddressD/6LoWPANd(2306):WritingModule:GetAddressD/smartcard-jni(2781):SmartCard_state_update_callback:status=6D/SmartCardNative(2781):status=6D/smartcard(2781):PN532Smartcard_loop_threadexitD/smartcard-jni(2781):SmartCard_loop_thread:SMARTCARD_STATUS_ABORTD/smartcard(2781):Smartcard_loop_uninitD/smartcard(2781):2D/serialcomm_pn532(2781):PN532:Readingfrom/dev/ttyUSB0-->D/smartcard(2781):Received(0x3)fromPN532:(dataBuf[0]:0x1)(0x1f5988)D/smartcard(2781):ReceivedStatusfromPN532:OK(cmd:0x2)D/smartcard-jni(2781):SmartCard_listener_update_callbackD/smartcard(2781):Received(0x1c2)fromPN532:(dataBuf[0]:0x32)(0x1f5988)D/smartcard(2781):vd(2306):AuthorisationScheme:RADIUSserveratfd04:bd3:80e8:1::1usingPAPD/6LoWPANd(2306):

The problem I am facing is, if I want to compress a file containing this , the code is able to do that. But the modified code that I had done having little bit of problem. The last 2 bits of compressed files are different. Though the content of file and the buffer both are exactly same.

The original code was reading from file. Here, I provided the string of same content.

The code goes here :

...

ANSWER

Answered 2017-Apr-18 at 14:19

void flush_bit_buffer(void)
{
    outfile2  = fopen("file2.lzss", "a");
    if (bit_mask != 128) {
        flush_bit[payload_i] = bit_buffer; /*This last bit should be put which I missed. It solved my issue*/
        if (fputc(buf_load[payload_i], outfile3) == EOF) error();
        if (fputc(bit_buffer, outfile2) == EOF) error();
        if (fputc(bit_buffer, outfile) == EOF) error();
        codecount++;
    }
    fclose(outfile2);
}

Source https://stackoverflow.com/questions/43438442

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Vulnerabilities

No vulnerabilities reported

Install bit_mask

You can download it from GitHub.
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