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Remove characters from NSString?
...
if the string is mutable, then you can transform it in place using this form:
[string replaceOccurrencesOfString:@" "
withString:@""
options:0
range:NSMakeRange(0, string.length)];
...
Why does one often see “null != variable” instead of “variable != null” in C#?
...reading code written that way eventually - I just haven't experienced that transformation yet).
Here is an example:
public class myDuck
{
public int quacks;
static override bool operator ==(myDuck a, myDuck b)
{
// these will overflow the stack - because the a==null reenters th...
C++ sorting and keeping track of indexes
...omp(*a.second, *b.second) ; }) ;
indexes.resize(pv.size()) ;
std::transform(pv.begin(), pv.end(), indexes.begin(),
[](const std::pair<size_t,RAIter>& a) -> size_t { return a.first ; }) ;
}
Usage is the same as that of std::sort except for an index container to receiv...
How to use filter, map, and reduce in Python 3
... tricky is map() invoked for the side effects of the function; the correct transformation is to use a regular for loop (since creating a list would just be wasteful).
[...]
Builtins
[...]
Removed reduce(). Use functools.reduce() if you really need it; however, 99 percent of the time an explicit ...
How to dump a table to console?
... file that you can require from any other file. It returns a function that transforms any Lua value into a human-readable string:
local inspect = require('inspect')
print(inspect({1,2,3})) -- {1, 2, 3}
print(inspect({a=1,b=2})
-- {
-- a = 1
-- b = 2
-- }
It indents subtables properly, and ha...
Should methods that throw RuntimeException indicate it in method signature?
...there is no need to declare them in the method signature. In Java, you can transform them in runtime exceptions, as Spring is doing. I am also saying that runtime exceptions should be thrown only on non-recoverable situations.
– kgiannakakis
May 5 '09 at 13:23
...
6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
6个变态的C语言Hello World程序下面的六个程序片段主要完成这些事情：输出Hello, World混乱C语言的源代码下面的所有程序都可以在GCC下编译通过，只有最后一个需要动用C++...下面的六个程序片段主要完成这些事情：
1、输出Hello, W...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
...于逻辑表达式写法本文简要介绍Linux Shell if条件测试语句的写法，如比较字符串、判断文件是否存在及是否可读等，通常用 "[] "来表示条件测试。注意：if [ xxx ] 表达式前后都要有空格。这里的空格很重要，笔者就...
error C2143:语法错误 : 缺少“;”(在“*”的前面) error C4430:缺少类型说...
error C2143:语法错误 : 缺少“;”(在“*”的前面) error C4430:缺少类型说明符 - 假定为 int。注意: C++ 不支持默认 int1>d: xxx childfrm.h(73): error C2143: 语法错误 : 缺少;(在*的前面)1>d: xxx childfrm.h(73): error C4430: 缺少类型说明符 - ...1>d:\xxx\ch...
error: ISO C++ forbids declaration of \'XXXX\' with no type - C/C++ - 清泛网 - 专注C/C++及内核技术
...出现这个错误，一般是由于两个CPP相互都相互包含了对方的头文件造成的，比如：当mainwindow cpp、configdialog cpp两个文件，分别包含了对方的头文件，并且分别又在自己的类中声明 出现这个错误，一般是由于两个CPP相互都相互包...