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Why does sizeof(x++) not increment x?
...at is initialized as a quoted string, instead of using strlen(), where the character array comprising the string has to be scanned for the null-terminator at run time, sizeof(quoted_string) is known at compile time, and therefore at run-time. It's a small thing, but if you use the quoted string in a...
Why is “while ( !feof (file) )” always wrong?
...e is again std::cin, just as before.
POSIX, write(2) to flush a buffer:
char const * p = buf;
ssize_t n = bufsize;
for (ssize_t k = bufsize; (k = write(fd, p, n)) > 0; p += k, n -= k) {}
if (n != 0) { /* error, failed to write complete buffer */ }
The result we use here is k, the numb...
Why does Path.Combine not properly concatenate filenames that start with Path.DirectorySeparatorChar
...? "path1" : "path2");
Contract.EndContractBlock();
CheckInvalidPathChars(path1);
CheckInvalidPathChars(path2);
return CombineNoChecks(path1, path2);
}
internal static string CombineNoChecks(string path1, string path2)
{
if (path2.Length == 0)
return path1;
if (path...
Why historically do people use 255 not 256 for database field magnitudes?
You often see database fields set to have a magnitude of 255 characters, what is the traditional / historic reason why? I assume it's something to do with paging / memory limits, and performance but the distinction between 255 and 256 has always confused me.
...
How to find the operating system version using JavaScript?
How can I find the OS name and OS version using JavaScript?
13 Answers
13
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Capitalize only first character of string and leave others alone? (Rails)
I'm trying to get Rails to capitalize the first character of a string, and leave all the others the way they are. I'm running into a problem where "i'm from New York" gets turned into "I'm from new york."
...
How many characters can a Java String have?
...ss uses for internal storage)
OR
Half your maximum heap size (since each character is two bytes) whichever is smaller.
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Is there a link to GitHub for downloading a file in the latest release of a repository?
...releases allows queries like jq '.[] | .assets[] | .browser_download_url | select(endswith(".deb"))'...
– Beni Cherniavsky-Paskin
Jun 7 '15 at 13:30
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How to remove the last character from a string?
I want to remove the last character from a string. I've tried doing this:
32 Answers
3...
How to get the input from the Tkinter Text Widget?
...u don't want the last newline character.
Demo
See below demonstration that selects the characters in between the given positions with sliders:
try:
import tkinter as tk
except:
import Tkinter as tk
class Demo(tk.LabelFrame):
"""
A LabeFrame that in order to demonstrate the string r...