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What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
...
Directly from the Windows.h header file:
#ifndef WIN32_LEAN_AND_MEAN
#include <cderr.h>
#include <dde.h>
#include <ddeml.h>
#include <dlgs.h>
#ifndef _MAC
#include <lzexpand.h>
#include <mmsystem.h&...
Repeat string to certain length
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Pillmod's / Pillmuncher's code is more beautiful, but unfortunately slower than Scheirer's code, because adding to an already long string is an expensive operation (the Python runtime will have to copy the string to a new memory location), while truncating a temporary ...
What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
... correct:
[self.subview1 setNeedsLayout];
// but I don't claim to know definitively.
}
AFAIK layoutIfNeeded isn't generally meant to be overridden in your subclass. It's a method that you're meant to call when you want a view to be laid out right now. Apple's implementation might look so...
BSS段、数据段、代码段、堆与栈 剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...汇编代码(test.asm)：
TITLE test.cpp
.386P
include listing.inc
if @Version gt 510
.model FLAT
else
_TEXT SEGMENT PARA USE32 PUBLIC 'CODE'
_TEXT ENDS
_DATA SEGMENT DWORD USE32 PUBLIC 'DATA'
_DATA ENDS
CONST SEGMENT DWORD USE32 PUBLIC 'CONST'
CONST ENDS
_BSS SEGMENT DWORD USE32 PU...
Creating an empty Pandas DataFrame, then filling it?
...me
import pandas as pd
import numpy as np
todays_date = datetime.datetime.now().date()
index = pd.date_range(todays_date-datetime.timedelta(10), periods=10, freq='D')
columns = ['A','B', 'C']
Note: we could create an empty DataFrame (with NaNs) simply by writing:
df_ = pd.DataFrame(index=index,...
LINQ Select Distinct with Anonymous Types
...es on the type to compute an
object's hash code and test for
equality. If two objects of the same
anonymous type have all the same
values for their properties – the
objects are equal.
So it's totally safe to use the Distinct() method on a query that returns anonymous types.
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
I'm trying to get a cross-plattform build system working using CMake. Now the software has a few dependencies. I compiled them myself and installed them on my system.
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Control cannot fall through from one case label
...heck were the C# devs thinking?! It works in every programming language I know, but not in C#.
– Black
Oct 27 '17 at 7:05
8
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Where do “pure virtual function call” crashes come from?
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They can result if you try to make a virtual function call from a constructor or destructor. Since you can't make a virtual function call from a constructor or destructor (the derived class object hasn't been constructed or has already been...
How to check iOS version?
I want to check if the iOS version of the device is greater than 3.1.3
I tried things like:
37 Answers
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