Declaration and implementation of the Const in C function

I have a function declared in code.h and implemented in code.c. it goes like: void someFunc(const char*); and #include "code.h" void someFunc(const char* str){ printf("%s\n", str); } Now I found out I can remove the const in any one of

Declaration and difference of prototype

What is the difference between declaration and prototype in C? In which situations they are called declarations and in which prototypes?TL;DR; All prototypes are declarations, but not all declarations are prototypes. Declaration is the generic termin

Problem with a missing C ++ statement

I have compiled following program without forward declaring function in C. It's successfully compiled and run in GCC without any warning or error. #include <stdio.h> int main() { int ret = func(10, 5); } int func(int i, int j) { return (i+j); } But,

How to create a prototype function in powershell?

I can't find an example. How do I make a prototype for my powershell functions? function exampleFunc(); //other stuff that calls the example function Function exampleFunc(){//stuff}PowerShell doesn't support prototype functions, forward declarations

How to return two values ​​of a function?

How do I design a function prototype that would allow a single function to find and return simultaneously both the lowest and the highest values in an array? Thank you.std::pair covers returning two values, std::tuple generalizes to any number of val

Is it possible to check if a function has been declared?

Suppose there's a library, one version of which defines a function with name foo, and another version has the name changed to foo_other, but both these functions still have the same arguments and return values. I currently use conditional compilation

Function declaration vs function definition

If I have this prototype: int bar(int); for the compiler I'm declaring the identifier bar. If I have this definition: int bar(int a) {}; for the compiler I'm defining the identifier bar. Generally speaking a definition make a storage allocation for a

#define EXIT_SUCCESS 0

I was looking at a program that calculates the average of 3 numbers and came across #define EXIT_SUCCESS 0 to make return EXIT_SUCCESS; work without an error (right under the include header). What is the purpose of using #define EXIT_SUCCESS 0 and re

Javascript: Add a method to all objects in order

Imagine the following code: $.get( "ajax/getColorData.php", function( data ) { this.colorData = data; }); now envision that the value of 'data' is: this.colorData = [ { colorName: 'Red', colorIsInRainbow:true }, { colorName: 'Orange', colorIsInR

C / C ++ need prototypes of local functions?

Is there any advantage on explicitly prototype local functions in C/C++, instead of defining the functions before use? By local I mean functions only used whithin their source file. An example is this: #include "header.h" static float times2(flo

Program crashing on a prototype function declaration

I try to practice generic functions writing this function: void *scramble(void *arr, int ElemSize, int n, int *indArr); But whenever I run the program with a debugger it crashes on the prototype line, using F11 (Step Into) I see the following: 1. #el

Is there a new function type expression format in C ++ 11?

Today I checked out Stroustrup's C++11 FAQ (modified April 7, 2013) and saw this at the end of the type-alias section: typedef void (*PFD)(double); // C style using PF = void (*)(double); // using plus C-style type using P = [](double)->void; // usin

How to find C functions without a prototype?

Company policy dictates that every function in C source code has a prototype. I inherited a project with its own make system (so I cannot test it on gcc or Visual Studio) and found that one of the files has some static functions declared without prot

the argument does not match the prototype error on Linux

I have header file with the following function declaration: extern getEmailDetailsResult * getemaildetails_5(getEmailDetailsInput *, CLIENT *); In my .C file, the function definition is getEmailDetailsResult* getemaildetails_5(inputParams, rqstp) get

Inline function prototype vs. regular vs prototype declaration

What's the difference between inline function and then main like so: inline double cube(double side) { return side * side * side; } int main( ) { cube(5); } vs just declaring a function regularly like: double cube(double side) { return side * side *

What should be the prototype of my virtual function?

Let's say I have an abstract base class Base with a virtual function doSomething() There are two derived classes, one of which takes no parameters in doSomething() while the other takes a structure and an integer as a parameter. A function in another

& ldquo; Faking & rdquo; a JavaScript constructor

Context I am working on improving my JavaScript skills and I'm learning more about prototyping. I want to better understand the code in this question and any limitations or problems with it. One thing that hasn't been obvious is defining more complex

Javascript namespace declaration with prototype function

I know, this is often discussed. But after searching around like someone out of the 19th century, I need some advice. I have no problem by declaring a "namespace", but when it comes to a prototype.foo function, I stuck. I found a way, but I don'

= operator in function prototype

Possible Duplicate: Pure virtual functions may not have an inline definition. Why? I've come accross a function prototype that looks like this: virtual void functionName(const int x) = 0; what does that =0 exactly mean?This denotes purely virtual (ab

C prototype functions

As a beginner to C, I can understand the need for function prototypes in the file, but am unsure of a couple things. First, does every function call outside of the main require a prototype declaration? Are there any conditions where that can change?

Javascript when using prototypes

I'd like to understand when it is appropriate to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty? In searching around this site on common methods for na

Should we declare the function prototype in C?

This question already has an answer here: Are prototypes required for all functions in C89, C90 or C99? 6 answers I am kind of new to C (I have prior Java, C#, and some C++ experience). In C, is it necessary to declare a function prototype or can the

prototype functions disable custom functions

Its a complicated senario for me. I have a sound management singleton with an asset like dictionary storing all referances to my urls and assets and the guff inside it- I have a function called addItem(id:String, url:String):Object I would love to do

Switch parameters to a prototyped javascript function

I've been recently experimenting with prototyping in javascript and I can't figure out why the following code doesn't work. What I would like to do is create a new instance of cheese with parameter n. function food(n) { this.n=n; } function cheese(n)