大约有 39,600 项符合查询结果（耗时：0.0309秒） [XML]
What's the difference between ASCII and Unicode?
...ust codepoints.
– Kerrek SB
Feb 22 '16 at 22:14
...
How to allocate aligned memory only using the standard library?
...
Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0F;
mems...
How to filter a dictionary according to an arbitrary condition function?
...
|
edited Apr 27 '16 at 12:13
answered May 16 '13 at 13:57
...
max value of integer
...s. It can vary from machine to machine, on embedded systems the int can be 16 bit wide, though usually it is 32 bit.
The only requirement is that short int <= int <= long int by size. Also, there is a recommendation that int should represent the native capacity of the processor.
All types a...
Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
...em what to do :)
– Chris McCall
Mar 16 '10 at 19:00
5
Sounds like a great idea for promoting fun ...
How do I write a short literal in C++?
...
answered Oct 16 '08 at 13:01
Mike FMike F
...
Accessing JPEG EXIF rotation data in JavaScript on the client side
... var view = new DataView(e.target.result);
if (view.getUint16(0, false) != 0xFFD8)
{
return callback(-2);
}
var length = view.byteLength, offset = 2;
while (offset < length)
{
if (view.getUint16(offset+2, fals...
Hexadecimal To Decimal in Shell Script
... to do it in the shell or with an external program:
With bash:
$ echo $((16#FF))
255
with bc:
$ echo "ibase=16; FF" | bc
255
with perl:
$ perl -le 'print hex("FF");'
255
with printf :
$ printf "%d\n" 0xFF
255
with python:
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e '...
Favicon dimensions? [duplicate]
...
Short answer
The favicon is supposed to be a set of 16x16, 32x32 and 48x48 pictures in ICO format. ICO format is different than PNG. Non-square pictures are not supported.
To generate the favicon, for many reasons explained below, I advise you to use this favicon generator. Fu...
What is the difference between int, Int16, Int32 and Int64?
What is the difference between int , System.Int16 , System.Int32 and System.Int64 other than their sizes?
10 Answers
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