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How does deriving work in Haskell?
...> "parm"
where toL (x:y) = (toLower x):y
unCapalize :: [Char] -> [Char]
unCapalize (x:y) = (toLower x):y
And some borrowed helper code taken from Syb III / replib 0.2.
typeInfo :: DecQ -> Q (Name, [Name], [(Name, Int)], [(Name, [(Maybe Name, Type)])])
typeInfo m =
...
How to throw a C++ exception
...<< "MyException::~MyException" << endl;
}
virtual const char* what() const throw ()
{
cout << "MyException - what" << endl;
return m_msg.c_str();
}
const string m_msg;
};
void throwDerivedException()
{
cout << "throwDerivedExceptio...
Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...数：
#include <sys/types.h>
#include <sys/stat.h>
int mkfifo(const char * pathname, mode_t mode)
第一个参数即为路径名，第二个参数为文件属性，包括打开方式、访问权限等，Linux下有很多函数使用该类型的参数，如参数值“O_CREAT | O_EXCL | 0666...
How does the Java 'for each' loop work?
...on.
While programming we often write code that looks like the following:
char[] grades = ....
for(int i = 0; i < grades.length; i++) { // for i goes from 0 to grades.length
System.out.print(grades[i]); // Print grades[i]
}
The foreach syntax allows this common pattern to be wr...
What is in your .vimrc? [closed]
...
is there any way to select from more colors?
– Fzs2
Aug 13 '10 at 10:13
...
Are the days of passing const std::string & as a parameter over?
...ring has various components including a pointer into the heap and a member char[] for short string optimization. So it seems to me that passing by reference is still a good idea. Can anyone explain why Herb might have said this?
If stack size is a concern (and assuming this is not inlined/optimize...
Declaring variables inside loops, good practice or bad practice?
...; counter <= 10; counter++) {
// compiler can pull this out
const char testing[] = "testing";
cout << testing;
}
or you can pull the constant out:
const std::string testing = "testing";
for (int counter = 0; counter <= 10; counter++) {
cout << testing;
}
Do most...
What is the logic behind the “using” keyword in C++?
...::f; // lift Base's f into Derived's scope -- works in C++98
void f(char); // provide a new f
void f(int); // prefer this f to Base::f(int)
using Base::Base; // lift Base constructors Derived's scope -- C++11 only
Derived(char); // provide a new constructor
Der...
Determine a string's encoding in C#
...igh probability) unicode files with the BOM/signature missing
Searches for charset=xyz and encoding=xyz inside file to help determine encoding.
To save processing, you can 'taste' the file (definable number of bytes).
The encoding and decoded text file is returned.
Purely byte-based solution for eff...
What is dynamic programming? [closed]
...er the three natural types of changes:
Substitution - change a single character from pattern "s" to a different character in text "t", such as changing "shot" to "spot".
Insertion - insert a single character into pattern "s" to help it match text "t", such as changing "ago" to "agog".
...