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Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and
...ource windows side-by-side or using a side-by-side diff viewer.
To improve readability. Narrow code can be read quickly without having to scan your eyes from side to side.
I think the last point is the most important. Though displays have grown in size and resolution in the last few years, eyes ha...
multiprocessing: sharing a large read-only object between processes?
...cture with lots of workers, do this.
Write each worker as a "filter" – reads intermediate results from stdin, does work, writes intermediate results on stdout.
Connect all the workers as a pipeline:
process1 <source | process2 | process3 | ... | processn >result
Each process reads, doe...
How to read from standard input in the console?
I would like to read standard input from the command line, but my attempts have ended with the program exiting before I'm prompted for input. I'm looking for the equivalent of Console.ReadLine() in C#.
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Purpose of memory alignment
...s of cache memory that data must be pulled through; supporting single-byte reads would make the memory subsystem throughput tightly bound to the execution unit throughput (aka cpu-bound); this is all reminiscent of how PIO mode was surpassed by DMA for many of the same reasons in hard drives.
The C...
Load RSA public key from file
...rivate_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform PEM -outform DER -in private_key.pem -out private_key.der -nocrypt
Output public key portion in DER format (so Java can read it)
$ openssl rsa -in private_key.pem -pubo...
Difference between Role and GrantedAuthority in Spring Security
...The admin role with id ROLE_ADMIN has the operations OP_DELETE_ACCOUNT, OP_READ_ACCOUNT, OP_RUN_BATCH_JOB assigned to it.
The user role with id ROLE_USER has the operation OP_READ_ACCOUNT.
If an admin logs in the resulting security context will have the GrantedAuthorities:
ROLE_ADMIN, OP_DELETE_AC...
What's the most concise way to read query parameters in AngularJS?
I'd like to read the values of URL query parameters using AngularJS. I'm accessing the HTML with the following URL:
10 Ans...
Can you explain the concept of streams?
...s a representation of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with?
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How to read/write a boolean when implementing the Parcelable interface?
...eByte((byte) (myBoolean ? 1 : 0)); //if myBoolean == true, byte == 1
readFromParcel:
myBoolean = in.readByte() != 0; //myBoolean == true if byte != 0
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How to search and replace text in a file?
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fileinput already supports inplace editing. It redirects stdout to the file in this case:
#!/usr/bin/env python3
import fileinput
with fileinput.FileInput(filename, inplace=True, backup='.bak') as file:
for line in file:
pr...