大约有 16,000 项符合查询结果（耗时：0.0330秒） [XML]
What is the meaning of “__attribute__((packed, aligned(4))) ”
... Consider the following structure:
typedef struct
{
char Data1;
int Data2;
unsigned short Data3;
char Data4;
}sSampleStruct;
sizeof(sSampleStruct) will be 12 rather than 8. Because of structure padding. By default, In X86, structures will be padded to 4-byte alignment:
type...
Read binary file as string in Ruby
I need an easy way to take a tar file and convert it into a string (and vice versa). Is there a way to do this in Ruby? My best attempt was this:
...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
I am fairly new to MySQL and I am getting a pretty interesting error on which I cannot find any help via google and the stackoverflow search.
...
Get the client's IP address in socket.io
...ket.handshake.headers["x-real-port"];
Note that the header is internally converted to lower case.
If you are connecting the node server directly to the client,
var ip = socket.conn.remoteAddress;
works with socket.io version 1.4.6 for me.
...
Union Vs Concat in Linq
...tems), then items will not be compared by reference:
class X
{
public int ID { get; set; }
public override bool Equals(object obj)
{
X x = obj as X;
if (x == null)
return false;
return x.ID == ID;
}
public override int GetHashCode()
{
...
Should I use px or rem value units in my CSS? [closed]
...e of rem is 10px which means any value you might have written in px can be converted directly to rem by bumping a decimal place.
padding: 20px;
turns into
padding: 2rem;
The apparent font-size you choose is up to you, so if you want there's no reason you can't use:
:root {
font-size: 6.25%;...
How to forward declare a C++ template class?
...ce the class you must include all of its arguments until the definition is introduced.
eg. Let's use std::vector without including it (the second argument of std::vector is defined with a default):
namespace std
{
template<typename, typename>
class vector;
}
#include <iostream>
...
Change app language programmatically in Android
...
Oh, looks like API level 17 introduced Context.createConfigurationContext(), which can be used to wrap the default context with locale-specific configuration and then call getResources on that without having to update the configuration on the resources ...
How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...
You should probably promote that comment into your actual answer. Also, from Python 2.7 and Python 3 you can do {el:0 for el in a}. (Feel free to add that into your answer as well.)
– Zooba
Oct 6 '10 at 4:37
...
Creating C formatted strings (not printing them)
...
Use sprintf.
int sprintf ( char * str, const char * format, ... );
Write formatted data to string Composes a string with the same text
that would be printed if format was used on printf, but instead of
being printed, the content i...