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Merging dictionaries in C#
...K,V> src in
(new List<IDictionary<K,V>> { me }).Concat(others)) {
// ^-- echk. Not quite there type-system.
foreach (KeyValuePair<K,V> p in src) {
newMap[p.Key] = p.Value;
}
}
return newMap;
}
}...
Generate fixed length Strings filled with whitespaces
I need to produce fixed length string to generate a character position based file. The missing characters must be filled with space character.
...
Is It Possible to Sandbox JavaScript Running In the Browser?
...; // object: object q=1 w=2
}
}).eval({
code : "[1, 2, 3].concat(input)",
input : [4, 5, 6],
callback: function(arr) {
console.log("array: ", arr); // array: [1, 2, 3, 4, 5, 6]
}
}).eval({
code : "function x(z){this.y=z;};new x(input)",
...
What column type/length should I use for storing a Bcrypt hashed password in a Database?
...d format
a two digit value denoting the cost parameter, followed by $
a 53 characters long base-64-encoded value (they use the alphabet ., /, 0–9, A–Z, a–z that is different to the standard Base 64 Encoding alphabet) consisting of:
22 characters of salt (effectively only 128 bits of the 132 d...
How do I group Windows Form radio buttons?
...Many(ctrl => GetAll(ctrl, type))
.Concat(controls)
.Where(c => c.GetType() == type);
}
}
}
share
|
impr...
C++ static virtual members?
...he interface for all the object types:
class Object
{
public:
virtual char* GetClassName() = 0;
};
Now we need an actual implementation. But to avoid having to write both the static and the virtual methods, we will have our actual object classes inherit the virtual methods. This does obviousl...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
...含指针成员，没有复制构造函数出错
struct Node
{
Node(char *n="",int a = 0)
{
name = strdup(n);
strcpy(name,n);
age = a ;
}
~Node()
{
delete[] name;
}
char *name;
int age;
};
int main()
{
Node node1("Roger",20),node2(node1);
//pri...
How to convert an enum type variable to a string?
...nversion to string:
enum OS_type { Linux, Apple, Windows };
inline const char* ToString(OS_type v)
{
switch (v)
{
case Linux: return "Linux";
case Apple: return "Apple";
case Windows: return "Windows";
default: return "[Unknown OS_type]";
}
}
...
Validating IPv4 addresses with regexp
...
@PriteshAcharya Works fine over here.
– Kid Diamond
Mar 15 '18 at 13:27
|
...
Practical usage of setjmp and longjmp in C
...(bufferB);
if (r == 0) longjmp(bufferA, 10003);
}
int main(int argc, char **argv)
{
routineA();
return 0;
}
Following figure shows the flow of execution:
Warning note
When using setjmp/longjmp be aware that they have an effect on the validity of local variables often not consider...