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Can virtual functions have default parameters?
... B;
A* pa = pb;
pa->f(); //OK, calls pa->B::f(7)
pb->f(); //error: wrong number of arguments for B::f()
}
Here is a sample program to demonstrate what defaults are picked up. I'm using structs here rather than classes simply for brevity -- class and struct are exactly the same i...
“var” or no “var” in JavaScript's “for-in” loop?
...obal (if you are in a strict mode, using strict, global variables throw an error). This can lead to problems like the following.
function f (){
for (i=0; i<5; i++);
}
var i = 2;
f ();
alert (i); //i == 5. i should be 2
If you write var i in the for loop the alert shows 2.
JavaScript Scopi...
Objective-C declared @property attributes (nonatomic, copy, strong, weak)
... In addition to the comment of @JohnBushnell there are many other errors and inaccuracies in this answer. It has also not aged well, so is somwhat historical. Go look elsewhere if you seek an answer to this question.
– CRD
Mar 1 '18 at 5:22
...
jQuery Ajax File Upload
...ss: function (data) {
// your callback here
},
error: function (error) {
// handle error
},
async: true,
data: formData,
cache: false,
contentType: false,
processData: false,
timeout: 60000
});
};
Up...
How do I disable “missing docstring” warnings at a file-level in Pylint?
Pylint throws errors that some of files are missing docstrings. I try and add docstrings to each class, method and function but it seems that Pylint also checks that files should a docstring at the beginning of it. Can i disable this somehow? I would like to be notified of a docstring is missing ins...
Struct like objects in Java
...rning polar coordinates from an (x, y) object - consider ACCUMULATIVE math errors, as changes to individual components of polar coord are converted back to (x, y).
– ToolmakerSteve
Jun 17 '14 at 22:29
...
How do I prompt a user for confirmation in bash script? [duplicate]
...owever, as pointed out by Erich, under some circumstances such as a syntax error caused by the script being run in the wrong shell, the negated form could allow the script to continue to the "dangerous stuff". The failure mode should favor the safest outcome so only the first, non-negated if should ...
Is there a replacement for unistd.h for Windows (Visual C)?
...nsole program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'.
I know I can replace the random functions, and I'm pretty sure I ca...
What does the number in parentheses shown after Unix command names in manpages mean?
...he command is assigned to.
These are split as
General commands
System calls
C library functions
Special files (usually devices, those found in /dev) and drivers
File formats and conventions
Games and screensavers
Miscellanea
System administration commands and daemons
Original descriptions of e...
CSS hexadecimal RGBA?
...cited to see this, and then tried it in devtools on Chrome 55. No dice, it errors as an invalid property value... ¯\_(ツ)_/¯
– ericsoco
Jan 18 '17 at 21:04
...