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What is the correct answer for cout
Recently in an interview there was a following objective type question.
4 Answers
4
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Is there a reason for C#'s reuse of the variable in a foreach?
...oop body, as it made no observable difference. When closure semantics were introduced in C# 2.0, the choice was made to put the loop variable outside the loop, consistent with the "for" loop.
I think it is fair to say that all regret that decision. This is one of the worst "gotchas" in C#, and we a...
Interface defining a constructor signature?
It's weird that this is the first time I've bumped into this problem, but:
18 Answers
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BestPractice - Transform first character of a string into lower case
...ng without first letter. Then i will add this string to first char that is converted to lower case
– fedotoves
Aug 25 '10 at 11:34
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Pretty Printing a pandas dataframe
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You can use prettytable to render the table as text. The trick is to convert the data_frame to an in-memory csv file and have prettytable read it. Here's the code:
from StringIO import StringIO
import prettytable
output = StringIO()
data_frame.to_csv(output)
output.seek(0)
pt = prettytab...
Different ways of adding to Dictionary
...is the This indexer:
public TValue this[TKey key]
{
get
{
int index = this.FindEntry(key);
if (index >= 0)
{
return this.entries[index].value;
}
ThrowHelper.ThrowKeyNotFoundException();
return default(TValue);
}
set
...
Scala: Abstract types vs generics
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You have a good point of view on this issue here:
The Purpose of Scala's Type System
A Conversation with Martin Odersky, Part III
by Bill Venners and Frank Sommers (May 18, 2009)
Update (October2009): what follows below has actually been ...
How much is too much with C++11 auto keyword?
... composite key type in boost::multi_index, even though you know that it is int. You can't just write int because it could be changed in the future. I would write auto in this case.
So if the auto keyword improves readability in a particular case then use it. You can write auto when it is obvious to...
C++0x has no semaphores? How to synchronize threads?
...es with. Condition variables supposedly are more manageable. I see their point but feel a bit patronized. I assume that the same logic applies to C++11 -- programmers are expected to write their programs in a way that "naturally" uses condvars or other approved synchronization techniques. Supply a s...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...cells-in-static-table-view/
Design your static table view as normal in interface builder –
complete with all potentially hidden cells. But there is one thing you
must do for every potential cell that you want to hide – check the
“Clip subviews” property of the cell, otherwise the c...