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Passing a 2D array to a C++ function
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edited Feb 25 '15 at 18:38
Peter Mortensen
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Why do we need virtual functions in C++?
...t."
So far so good, right? Animals eat generic food, cats eat rats, all without virtual.
Let's change it a little now so that eat() is called via an intermediate function (a trivial function just for this example):
// This can go at the top of the main.cpp file
void func(Animal *xyz) { xyz->e...
How to Calculate Execution Time of a Code Snippet in C++
I have to compute execution time of a C++ code snippet in seconds. It must be working either on Windows or Unix machines.
1...
What is the difference between a static and a non-static initialization code block
My question is about one particular usage of static keyword. It is possible to use static keyword to cover a code block within a class which does not belong to any function. For example following code compiles:
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Best practice for Python assert
...hanZeroException(Exception):
pass
class variable(object):
def __init__(self, value=0):
self.__x = value
def __set__(self, obj, value):
if value < 0:
raise LessThanZeroException('x is less than zero')
self.__x = value
def __get__(self, obj, ...
How do I pass a method as a parameter in Python
Is it possible to pass a method as a parameter to a method?
8 Answers
8
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Placeholder in UITextView
My application uses an UITextView . Now I want the UITextView to have a placeholder similar to the one you can set for an UITextField .
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Is there an online name demangler for C++? [closed]
I'm getting a fairly long and confusing link error, and would love it if I could just paste it into some textbox on some website and have the names un-mangled for me.
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xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...
...e\xtree(1775): 参见对正在编译的函数 模板 实例化“std::pair<_Ty1,_Ty2> std::_Tree<_Traits>::_Insert_nohint<std::pair<const _Kty,_Ty>&,_Nodety>(bool,_Valty,_Nodety)”的引用
1> with
1> [
1> _Ty1=std::_Tree_iterator<std::_Tree_val<std::_Tree_simple_t...
Capturing Groups From a Grep RegEx
I've got this little script in sh (Mac OSX 10.6) to look through an array of files. Google has stopped being helpful at this point:
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