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Move capture in lambda
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Note that in Visual Studio 2013, converting a std::bind to a std::function still results in it copying all the bound variables (myPointer in this case). Therefore the above code does not compile in VS2013. It woks fine in GCC 4.8 though.
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Windows service on Local Computer started and then stopped error
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I have found it very handy to convert your existing windows service to a console by simply changing your program with the following. With this change you can run the program by debugging in visual studio or running the executable normally. But it will als...
Convert RGBA PNG to RGB with PIL
I'm using PIL to convert a transparent PNG image uploaded with Django to a JPG file. The output looks broken.
7 Answers
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Converting an integer to a string in PHP
Is there a way to convert an integer to a string in PHP?
14 Answers
14
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How can I convert an image to grayscale via the command line? [closed]
How can I use sips , imagemagic , or another tool to convert an image to black and white (grayscale) via the command line?
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Convert xlsx to csv in Linux with command line
I'm looking for a way to convert xlsx files to csv files on Linux.
10 Answers
10
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How do I encode and decode a base64 string?
...TextBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
return System.Convert.ToBase64String(plainTextBytes);
}
Decode
public static string Base64Decode(string base64EncodedData) {
var base64EncodedBytes = System.Convert.FromBase64String(base64EncodedData);
return System.Text.Encoding.UT...
Return type of '?:' (ternary conditional operator)
...riate whether or not the condition is true. If one of the operands must be converted to a different type to match the other then the conditional expression cannot be an lvalue as the result of this conversion would not be an lvalue.
ISO/IEC 14882:2011 references:
3.10 [basic.lval] Lvalues and rvalu...
MySQL, update multiple tables with one query
...= t2.c
WHERE t1.a = 'blah';
To see what this is going to update, you can convert this into a select statement, e.g.:
SELECT t2.t1_id, t2.t3_id, t1.a, t2.b, t2.c AS t2_c, t3.c AS t3_c
FROM t1
INNER JOIN t2 ON t2.t1_id = t1.id
INNER JOIN t3 ON t2.t3_id = t3.id
WHERE t1.a = 'blah';
An example usin...
Converting Integer to Long
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No, you can't cast Integer to Long, even though you can convert from int to long. For an individual value which is known to be a number and you want to get the long value, you could use:
Number tmp = getValueByReflection(inv.var1(), classUnderTest, runtimeInstance);
Long value1 =...