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Types in MySQL: BigInt(20) vs Int(20)
... in their respective number of bytes. That means 232 values in an INT and 264 values in a BIGINT.
The 20 in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Practically, it affects onl...
Objective-C : BOOL vs bool
...
From the definition in objc.h:
#if (TARGET_OS_IPHONE && __LP64__) || TARGET_OS_WATCH
typedef bool BOOL;
#else
typedef signed char BOOL;
// BOOL is explicitly signed so @encode(BOOL) == "c" rather than "C"
// even if -funsigned-char is used.
#endif
#define YES ((BOOL)1)
#define NO...
How to compare times in Python?
....replace(hour=hr, minute=min, second=sec, microsecond=micros)
# Usage demo1:
print todayAt (17), todayAt (17, 15)
# Usage demo2:
timeNow = datetime.datetime.now()
if timeNow < todayAt (13):
print "Too Early"
...
Why do people say there is modulo bias when using a random number generator?
... klutt
19.6k1414 gold badges3737 silver badges6464 bronze badges
answered Jun 12 '12 at 0:10
Nick DandoulakisNick Dandoulakis
...
How to encode URL parameters?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Fastest sort of fixed length 6 int array
...and insertion sort. If I were betting, I'd put my money on insertion sort based on past experience.
Do you know anything about the input data? Some algorithms will perform better with certain kinds of data. For example, insertion sort performs better on sorted or almost-sorted dat, so it will be...
static linking only some libraries
...x00007f9a5ad99000)
libc.so.6 => /lib/libc.so.6 (0x00007f9a5aa46000)
/lib64/ld-linux-x86-64.so.2 (0x00007f9a5b53f000)
As you can see in the example, libX11 is not in the list of dynamically-linked libraries, as it was linked statically.
Beware: An .so file is always linked dynamically, even whe...
What is the argument for printf that formats a long?
...
647
Put an l (lowercased letter L) directly before the specifier.
unsigned long n;
long m;
pri...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
...t, created on the client's browser, along with the form. The screenshot is based on the DOM and as such may not be 100% accurate to the real representation as it does not make an actual screenshot, but builds the screenshot based on the information available on the page.
It does not require any ren...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...
Maybe an example demonstrating how both methods are used will help you to understand things better. So, consider the following class:
package test;
public class Demo {
public Demo() {
System.out.println("Hi!");
}
publi...