The difference between written and unwritten consent is that one is actually written down on paper, and the other is an oral agreement.
Everything. "inline" refers to functions, "const" refers to variables.
Well, uh, const unsigned int and const signed int..
The word construction is generally abbreviated as "const". However, it could be written in a slightly longer shorthand as "constn".
const char *p means the char value pointed by 'p' is constant we can't change anyway but the address(location) of 'p' can change. char const *p means the char value pointed by 'p' can change but the location of p can't be change it is constant.
#include<iostream> struct point { int x; int y; point (const int _x, const int _y): x {_x}, y {_y} {} double distance (const point&) const; }; double point::distance (const point& p) const { int w = x - p.x; int h = y - p.y; return sqrt (h*h + w*w); } std::ostream& operator<< (std::ostream& os, const point& p) { return os << '{' << p.x << ", " << p.y << '}'; } int main() { using namespace std; point a {5,10}; point b {7,2}; double d = a.distance (b); std::cout << "The distance between coordinates " << a << " and " << b << " is " << d << ".\n" << std::endl; }
volatile int means the code and fom outside from code can changes the value but in const volatile int, code cannot changes the value but fron ouside can change the value
Declaring a Constant: We can declare a constant using the keyword "const". E.g. const abc='a';const number=10; const number[10]={1,2,3,4,5,6,7,8,9,10}; const name[7]={'K','U','N','D','A','N'}; #include<stdio.h> #include<conio.h> void main() { int i; const name[7]={'K','U','N','D','A','N'}; for(i=0;i<7;i++) { printf("%c",name[i]); getch(); }
in stdio.h:extern int printf (const char *fmt, ...);
//Array Passer //Demonstrates relationship between pointers and arrays #include <iostream> using namespace std; void increase(int* const array, const int NUM_ELEMENTS); void display(const int* const array, const int NUM_ELEMENTS); int main() { cout << "Creating an array of high scores.\n\n"; const int NUM_SCORES = 3; int highScores[NUM_SCORES] = {5000, 3500, 2700}; cout << "Displaying scores using array name as a constant pointer.\n"; cout << *highScores << endl; cout << *(highScores + 1) << endl; cout << *(highScores + 2) << "\n\n"; cout << "Increasing scores by passing array as a constant pointer.\n\n"; increase(highScores, NUM_SCORES); cout << "Displaying scores by passing array as a constant pointer to a constant.\n"; display(highScores, NUM_SCORES); return 0; } void increase(int* const array, const int NUM_ELEMENTS) { for (int i = 0; i < NUM_ELEMENTS; ++i) array [i] += 500; } void display(const int* const array, const int NUM_ELEMENTS) { for (int i = 0; i < NUM_ELEMENTS; ++i) cout << array[i] << endl; }
const type, for instance (const double = 1.1; this you cannot change during run)
1960(independence constitution). Since then,there has been the 1963 republican constitution, the 1975 const., [ the aborted 1989 const., the aborted 1993 const.,] and the currently operating 1999 constitution
If you mean the "general equation of a cone" to be the elliptical cone equation: z = √( (x/a)2 + (y/b)2 ) ... then the function in C to compute this given the proper variables is: double genEqCone(const double x, const double y, const double a, const double b) { const double X_A = (x/a); const double Y_B = (y/b); return sqrt((X_A * X_A) + (Y_B * Y_B)); }