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c++ function as pointer

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ocean answered on January 7, 2022 Popularity 10/10 Helpfulness 2/10

answer c++ function as pointer

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c++ function as pointer

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// c++ function as pointer syntax
return_type( *function_name )( params... ){
 	// body
}

Popularity 10/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++ function

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Contributed on Jan 07 2022

ocean

0 Answers Avg Quality 2/10

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c++ pointers and functions

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#include <iostream>

using namespace std;

void increment(int *n){  		//declare argument of the functon as pointer
    *n+=1;
   cout<<"In function: "<<*n<<endl; 
}

int main()
{
   int x=5;			
   increment(&x);		//passing the address of the variable to the function
   cout<<"In main: "<<x<<endl;
   
}

Popularity 10/10 Helpfulness 2/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Jun 22 2022

S.Y

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why do we use pointers in c++

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//why do we use pointers:
1)pass values by refrence to a function
2)return multiple values from a function
3)use pointers in combinational with arrays
4)dynamic memory allocation
5)use pointers in a base class in order to access object of derived class (Smart pointers)

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Tags: c++

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Contributed on Jun 23 2022

S.Y

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c++ function pointer

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// Here's a macro I use to define a type.
// You're welcome to use it, but I'll also show how the type is defined.
#define d_typedef_func_ty(return_z, name, ...) typedef return_z (*name)(__VA_ARGS__);
d_typedef_func_ty(int, int_2i_f, int, int); // creates a int(*)(int, int) function pointer
// which is equivelant to the following:
typedef int(*int_2i_f)(int, int);

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Tags: c++

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Contributed on Jun 19 2022

Avetharun

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c++ function pointer

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void (*foo)(int);

Popularity 8/10 Helpfulness 2/10 Language cpp

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Contributed on Apr 04 2023

Sweet Plum

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pointer in c++

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uIndex = uchCRCLo ^ *puchMsg++ ; // pointer used in varible incriment

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Sep 25 2022

Laksahan Wijerathne

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c++ function as pointer

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