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Is it better to use std::memcpy() or std::copy() in terms to performance?
...in as large of chunks as possible (many other implementations operate with char / char *, whereas I operate with T / T * (where T is the largest type in the user's implementation that has correct overflow behavior), so fast memory access on the largest types I can is central to the performance of my...
What is the difference between Ruby 1.8 and Ruby 1.9
...ow
if statements do not introduce scope in Ruby.
What's changed?
Single character strings.
Ruby 1.9
irb(main):001:0> ?c
=> "c"
Ruby 1.8.6
irb(main):001:0> ?c
=> 99
String index.
Ruby 1.9
irb(main):001:0> "cat"[1]
=> "a"
Ruby 1.8.6
irb(main):001:0> "cat"[1]
=>...
Best way to alphanumeric check in JavaScript
... ñ does not fall into the pattern however fully valid UTF-8 char.
– Oybek
Apr 4 '13 at 16:35
8
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Check if a string contains a number
...n, like this
>>> def hasNumbers(inputString):
... return any(char.isdigit() for char in inputString)
...
>>> hasNumbers("I own 1 dog")
True
>>> hasNumbers("I own no dog")
False
Alternatively you can use a Regular Expression, like this
>>> import re
>&g...
How to resolve symbolic links in a shell script
...andards, pwd -P should return the path with symlinks resolved.
C function char *getcwd(char *buf, size_t size) from unistd.h should have the same behaviour.
getcwd
pwd
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Can I mask an input text in a bat file?
...d. Do I have any way to mask the input text? I don't need to print ******* characters instead of input characters. Linux's Password prompt behavior (Print nothing while typing) is enough.
...
How to insert a character in a string at a certain position?
...
This solution works for any string >= 4 characters: the string "111" gave me ".111", and anything less than that results in a java.lang.StringIndexOutOfBoundsException (attempting to access a reference that doesn't exist).
– sotrh
...
How do you write multiline strings in Go?
...
@KyleHeuton: Presumably Daniele D is using the backtick character in his/her SQL queries (as MySQL users often do), and finds it painful to have to represent it as ` + "`" + ` and break copy-and-pastability.
– ruakh
Nov 29 '18 at 21:55
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How to search a Git repository by commit message?
...Cgreen%H %Cblue%s\n%b%Creset\" --name-status --grep. Note the --all and %b chars. Thx @AshleyCoolman for the reset tip.
– arcol
Feb 22 '16 at 14:27
1
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Iterating each character in a string using Python
...of which start with 0. So I need to find a "0" and grab it and the next 3 characters, and move on without duplicating the number if there's another 0 following it. None of the "for c in str" or "for i,c in enumerate(str)" methods work because I need control of the index. I'm sure a regular express...