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Understanding typedefs for function pointers in C
...een a bit stumped when I read other peoples' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on ...
Difference between `constexpr` and `const`
... for example, template parameters and array-size specifiers:
template<int N>
class fixed_size_list
{ /*...*/ };
fixed_size_list<X> mylist; // X must be an integer constant expression
int numbers[X]; // X must be an integer constant expression
But note:
Declaring somethin...
what is the unsigned datatype?
...
unsigned really is a shorthand for unsigned int, and so defined in standard C.
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How to set a bitmap from resource
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I got the issue. I was trying to convert vector drawable into bitmap. So here is the cod to convert vector drawable into bitmap.
– Er.Rohit Sharma
Mar 20 '18 at 12:12
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Constant pointer vs Pointer to constant [duplicate]
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const int* ptr;
declares ptr a pointer to const int type. You can modify ptr itself but the object pointed to by ptr shall not be modified.
const int a = 10;
const int* ptr = &a;
*ptr = 5; // wrong
ptr++; // right
Whi...
How to calculate the SVG Path for an arc (of a circle)
...or the original question, since they have more mathematical pseudocode for converting between the two parameterizations (which I didn't realize when I first wrote this answer).
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Are typedef and #define the same in c?
...ect, but it's better to use the proper one for your needs
#define MY_TYPE int
typedef int My_Type;
When things get "hairy", using the proper tool makes it right
#define FX_TYPE void (*)(int)
typedef void (*stdfx)(int);
void fx_typ(stdfx fx); /* ok */
void fx_def(FX_TYPE fx); /* error */
...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
...would occur with DOM objects, for example. Stringify will throw an "Error: Converting circular structure to JSON".
– Ignacio Lago
Jan 17 '14 at 16:47
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What is the difference between “def” and “val” to define a function
...nd creates new function every time (new instance of Function1).
def even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = false
val even: Int => Boolean = _ % 2 == 0
even eq even
//Boolean = true
With def you can get new function on every call:
val test: () => Int = {
val r = ut...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...rim($decrypttext);
}
}
And to call it:
$str = "My secret String";
$converter = new Encryption;
$encoded = $converter->encode($str );
$decoded = $converter->decode($encoded);
echo "$encoded<p>$decoded";
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