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c++ boost库 序列化与反序列化 - c++1y / stl - 清泛IT社区，为创新赋能！
... ar & BOOST_SERIALIZATION_NVP(obj.Param)
& BOOST_SERIALIZATION_NVP(obj.OrderRef)
& BOOST_SERIALIZATION_NVP(obj.User...
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...tes the function has not modified the "outside" array that was passed as a parameter : it's passed as a copy, and not a reference.
If you want it passed by reference, you'll have to modify the function, this way :
function my_func(& $a) {
$a[] = 30;
}
And the output will become :
array
...
Is it considered bad practice to perform HTTP POST without entity body?
...it's OK to send a POST request without a body and instead use query string parameters. But be careful if your parameters contain characters that are not HTTP valid you will have to encode them.
For example if you need to POST 'hello world' to and end point you would have to make it look like this: ...
Is there a way to @Autowire a bean that requires constructor arguments?
...estion. As far as I know, one cannot do that when one wants to add dynamic parameters to the constructor. However, the factory pattern may help.
public interface MyBean {
// here be my fancy stuff
}
public interface MyBeanFactory {
public MyBean getMyBean(/* bean parameters */);
}
@Compon...
Aligning textviews on the left and right edges in Android layout
...
For dynamic tables, you can do : TableRow.LayoutParams col1Params = new TableRow.LayoutParams(); // Wrap-up the content of the row col1Params.height = LayoutParams.WRAP_CONTENT; col1Params.width = LayoutParams.WRAP_CONTENT; // Set the gravity to center the gravi...
C# Test if user has write access to a folder
...ry for create file access permissions
/// </summary>
/// <param name="DirectoryPath">Full path to directory </param>
/// <param name="AccessRight">File System right tested</param>
/// <returns>State [bool]</returns>
public static bool Dir...
How to pass a user defined argument in scrapy spider
... every time you want to code a scrapy's spider, you could just specify the parameters as before:
scrapy crawl myspider -a parameter1=value1 -a parameter2=value2
and in your spider code you can just use them as spider arguments:
class MySpider(Spider):
name = 'myspider'
...
def parse(...
How can I display an RTSP video stream in a web page?
...axvlc.cab"
width="640" height="480" id="vlc" events="True">
<param name="Src" value="rtsp://cameraipaddress" />
<param name="ShowDisplay" value="True" />
<param name="AutoLoop" value="False" />
<param name="AutoPlay" value="True" />
<embed id="vlcEmb...
Distinct by property of class with LINQ [duplicate]
...e distinct by the selected value.
/// </summary>
/// <typeparam name="TSource">The type of the source.</typeparam>
/// <typeparam name="TResult">The type of the result.</typeparam>
/// <param name="source">The source collection.</param>
/...
Android set height and width of Custom view programmatically
...asy way is to set the size programatically like that :
graphView.setLayoutParams(new LayoutParams(width, height));
This is fine if you know the exact size of the view. However, if you want a more flexible approach, you can override the onMeasure() method to measure the view more precisely dependi...