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Why do we need argc while there is always a null at the end of argv?
...nonnegative.
argv[argc] shall be a null
pointer.
Providing argc therefore isn't vital but is still useful. Amongst other things, it allows for quick checking that the correct number of arguments has been passed.
Edit: The question has been amended to include C++. n3337 draft 3.6.1 Main func...
String output: format or concat in C#?
...de slower than what I'm trying to measure.
2. I'm starting the Stopwatch before the loop and stopping it right after, this way I'm not losing precision if the function takes for example 26.4 ticks to execute.
3. The way you divided the result by some iterations was wrong. See what happens if you ha...
Troubleshooting “The use statement with non-compound name … has no effect”
...t allows you to define an alias, not to "import" a namespace and thus henceforth omit the namespace qualifier altogether.
So, you could do:
use Blog\Article as BA;
... to shorten it, but you cannot get rid of it entirely.
Consequently, use Blog is useless, but I believe you could write:
use ...
Available text color classes in Bootstrap
... title at the navigation bar. I want to give those texts different colors. For this purpose I'm using a separate CSS file, but I want to do this using bootstrap's CSS file.
...
How to add extra namespaces to Razor pages instead of @using declaration?
...that applies to MVC 3 RC: Razor HtmlHelper Extensions (or other namespaces for views) Not Found
This has changed between MVC 3 Preview 1 and MVC 3 Beta (released just today). In Preview 1 Razor used the WebForms namespaces config section. However in the Beta there is a new config section that is se...
'const string' vs. 'static readonly string' in C#
...const string, the compiler embeds the string's value at compile-time.
Therefore, if you use a const value in a different assembly, then update the original assembly and change the value, the other assembly won't see the change until you re-compile it.
A static readonly string is a normal field that...
How to calculate time in hours between two dates in iOS
...meinterval-seconds-into-minutes
--edit: See ÐąrέÐέvil's answer below for correctly handling daylight savings/leap seconds
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Difference between “change” and “input” event for an `input` element
...ment loses focus. It's basically an aggregate of changes. It will not fire for every single change as in the case input event.
The input event fires synchronously on change of the content for the element. As such, the event listener tends to fire more frequently.
Different browsers do not always agr...
How do I calculate the normal vector of a line segment?
... why would one use dx and dy here. Moreover, based on slopes, m1 * m2 = -1 for right angle lines, hence dy' = dx' * (-dx/dy) and dx' = dy' * (-dy/dx), how come in your equation normal.x = x' = -dy?
– legends2k
Jan 25 '13 at 8:53
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Selecting pandas column by location
...
Note that for the upcoming version 0.11.0, these methods are deprecated and may be removed in future versions. See pandas.pydata.org/pandas-docs/dev/… on how to select by position using iloc/iat.
– Wouter Overme...