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Unmangling the result of std::type_info::name
...tr_base;
}
It prints:
Type of ptr_base: Base*
Type of pointee: Derived
Tested with g++ 4.7.2, g++ 4.9.0 20140302 (experimental), clang++ 3.4 (trunk 184647), clang 3.5 (trunk 202594) on Linux 64 bit and g++ 4.7.2 (Mingw32, Win32 XP SP2).
If you cannot use C++11 features, here is how it can be do...
Why don't they teach these things in school? [closed]
...ve to gather: how much does version control help? How does it help? Unit testing? We can reason about the effectiveness of various techniques, but actually proving that effectiveness conclusively would be very expensive. We'd need to run a complete, realistic software project from beginning to e...
What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?
...
This worked me as well. Looks like The /test/create satisfies this /test/:id with id=create. and string cannot be cast to_id.
– kaila88
Mar 30 at 22:02
...
Is there a way to check if a file is in use?
...
}
Try it out yourself:
byte[] output1 = Helper.ReadFileBytes(@"c:\temp\test.txt");
string output2 = Helper.ReadFileTextWithEncoding(@"c:\temp\test.txt");
string output3 = Helper.ReadFileTextNoEncoding(@"c:\temp\test.txt");
...
How do I check if an integer is even or odd? [closed]
...not believe this to be the case.
Out of curiosity, I created two trivial test case programs:
/* modulo.c */
#include <stdio.h>
int main(void)
{
int x;
for (x = 0; x < 10; x++)
if (x % 2)
printf("%d is odd\n", x);
return 0;
}
/* and.c */
#include <stdi...
Regex: matching up to the first occurrence of a character
...
sample text:
"this is a test sentence; to prove this regex; that is g;iven below"
If for example we have the sample text above, the regex /(.*?\;)/ will give you everything until the first occurence of semicolon (;), including the semicolon: "this...
Is JSON Hijacking still an issue in modern browsers?
... [] or {} constructors in Firefox 21, Chrome 27, or IE 10. Here's a little test page, based on the main attacks described in http://www.thespanner.co.uk/2011/05/30/json-hijacking/:
(http://jsfiddle.net/ph3Uv/2/)
var capture = function() {
var ta = document.querySelector('textarea')
ta.i...
Can I have multiple primary keys in a single table?
...y one auto column and it must be defined as a key".
DROP TABLE IF EXISTS `test`.`animals`;
CREATE TABLE `test`.`animals` (
`grp` char(30) NOT NULL,
`id` mediumint(9) NOT NULL AUTO_INCREMENT,
`name` char(30) NOT NULL,
PRIMARY KEY (`grp`,`id`)
) ENGINE=MyISAM;
INSERT INTO animals (grp,name)...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...e about custom lower bound arrays:
void foo<T>(T[] array) { }
void test() {
// This will throw InvalidCastException, cannot convert Int32[] to Int32[*]
foo((int)Array.CreateInstance(typeof(int), new int[] { 1 }, new int[] { 1 }));
}
Validate Parameters
If index comes from a paramet...
mysql check collation of a table
...saves the user from having to look up the syntax:
show table status like 'test';
Where test is the table name.
(Corrected as per comments below.)
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