Our software outputs a directory to an Apache server that replaces an underscore with a %5F in the name of the directory. For instance if the name of the directory was listed as a string in our software it would be: "andy_test", but then when the software outputs the directory to the Apache server, it would become "andy%5Ftest".

2013年4月29日 · I am trying to use the HttpUtility.HtmlEncode to encode an underscore to %5f, but the encoded value does not give me the hex representation. How will I accomplish this? string encodedValue = HttpUtility.HtmlEncode("First_Name"); The value I want in the encodedValue string is "First%5FName". Is there something I am missing?

2012年5月7日 · If you write “foo(.5)“ and foo has a double parameter, the compiler may store .5f in the program’s constants and generate code that, at run-time, loads the .5f into a double register and passes it to foo. I would expect a good compiler to store constants in the smallest form that can be loaded with no extra execution cost.

2012年11月28日 · This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet.

2014年5月11日 · float x = 1.5f; So in this context, it doesn't matter. When does it matter? When you use the constant in a calculation: float y = x * 2.3; The multiplication is done using double and then the result converted to float, compared with: float z …

2010年8月13日 · Purely as additional information (not really a direct answer to the question) I'd note that to specify the type of a character or string literal, you use a prefix (e.g., L"wide string"), whereas with a numeric literal you use a suffix (e.g., 2L or 3.5f).

Historically, the first extensions used for C++ were .c and .h, exactly like for C.This caused practical problems, especially the .c which didn't allow build systems to easily differentiate C++ and C files.

2018年2月17日 · the compiler might be stumped. That's why you can say 5, 5f, or 5.0 to specify the type. Share.

In your example: double f = 1.55568; printf("%10.12f",f); You say to print at maximum 12 digits after the period.

// Convert a positive float value and round to the nearest integer int RoundedIntValue = (int) (FloatValue + 0.5f); The C/C++ language defines the (int) cast as truncating, so the 0.5f must be added to ensure rounding up to the nearest positive integer (when the input is positive). For the above, VS2015's compiler generates the following code: