95 lines
1.8 KiB
C++
95 lines
1.8 KiB
C++
#include <iostream>
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template<unsigned int NDim, typename TElem>
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class Vector {
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private:
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TElem coord[NDim];
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public:
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Vector() {}
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Vector(const TElem initial) {
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for(unsigned int i = 0; i < NDim; i++) {
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coord[i] = initial;
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}
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}
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Vector<NDim, TElem>
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operator+ (const Vector<NDim, TElem>& other)
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{
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Vector<NDim, TElem> result;
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for(unsigned int i = 0; i < NDim; i++) {
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result[i] = this->coord[i] + other[i];
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}
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return result;
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}
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Vector<NDim, TElem>
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operator+= (const Vector<NDim, TElem>& other)
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{
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for(unsigned int i = 0; i < NDim; i++) {
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this->coord[i] += other[i];
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}
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return *this;
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}
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Vector<NDim, TElem>
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operator- ()
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{
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Vector<NDim, TElem> result;
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for(unsigned int i = 0; i < NDim; i++)
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{
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result[i] = -this->coord[i];
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}
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return result;
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}
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Vector<NDim, TElem>
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operator*(TElem factor)
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{
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Vector<NDim, TElem> result;
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for(unsigned int i = 0; i < NDim; i++) {
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result[i] = this->coord[i] * factor;
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}
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return result;
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}
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TElem& operator[](const unsigned int index) {
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return this->coord[index];
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}
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const TElem operator[](const unsigned int index) const {
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return this->coord[index];
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}
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};
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template<unsigned int NDim>
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void printVector(const Vector<NDim, int> v) {
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printf("%d", v[0]);
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for(int i = 1; i < NDim; i++) {
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printf(", %3d", v[i]);
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}
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printf("\n");
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}
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#define DIM 3
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int main( int argc, char *argv[] ) {
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Vector<DIM,int> a(0),b(0),c(0),d(0);
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for(int i = 0; i < DIM; i++) {
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a[i] = 10*i;
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b[i] = 5-i;
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}
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printVector(a);
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printVector(b);
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c = a + b;
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printVector(c);
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d = a*3 + c*4;
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printVector(d);
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return 0;
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}
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