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How to redirect cin and cout to files?
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Here is an working example of what you want to do. Read the comments to know what each line in the code does. I've tested it on my pc with gcc 4.6.1; it works fine.
#include <iostream>
#include <fstream>
#include <string>
void f()
{
std::string line;
while(std::getline(...
Why is Lisp used for AI? [closed]
...for a very long time. Lisp is still great at tackling a problem you don't know how to solve yet. That description characterises AI perfectly.
Lisp supports symbolic programming well. Old AI was also symbolic. It was also unique in this regard for a long time.
Lisp is very powerful. The code/data dis...
INNER JOIN ON vs WHERE clause
...e keyword. Yes it's choice to be made but a lot of posts are done without knowing that fact. Hence my decision to make the changes are not intended to break anything but make it more readable. If you noticed any break after formating changes, sorry for that, and you obviously can revert such changes...
SQL query to find record with ID not in another table
... 20 datas, It works, but when i have 20000 datas, it not work, Iam confuse now.
– Frank
Nov 2 '16 at 3:25
1
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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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Best Practice for Exception Handling in a Windows Forms Application?
...ss of writing my first Windows Forms application. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translate the basic concepts into ...
Optimizing away a “while(1);” in C++0x
...theory is required to prove termination, in the latter case, we need
to know something about the possible values of j to do so. Wrap-around
for unsigned integers may complicate some of this reasoning further.)
This issue seems to apply to almost all loop restructuring
transformations, inc...
How do I scroll the UIScrollView when the keyboard appears?
... upon themselves to scroll the active text field above the keyboard for us now.
– paulvs
May 14 '17 at 15:29
2
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Cartesian product of multiple arrays in JavaScript
...b ? cartesian(f(a, b), ...c) : a);
Special thanks to ZuBB for letting me know about linter problems with the original code.
Update 2020:
Since I wrote this answer we got even better builtins, that can finally let us reduce (no pun intended) the code to just 1 line!
const cartesian =
(...a) => ...
How to return result of a SELECT inside a function in PostgreSQL?
I have this function in PostgreSQL, but I don't know how to return the result of the query:
2 Answers
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