aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data Update

Browse source
This commit is contained in:
Ingy döt Net 2023-07-09 17:42:30 -04:00
parent 015c2add84
commit e50b5c3114
206 changed files with 6337 additions and 523 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Task/Verhoeff-algorithm/C++/verhoeff-algorithm.cpp
View file

@ -1,3 +1,4 @@
#include <cstdint>
#include <iostream>
#include <string>
#include <array>
@ -31,7 +32,7 @@ const std::array<const std::array<int32_t, 10>, 8> permutation_table = { {
{ 7, 0, 4, 6, 9, 1, 3, 2, 5, 8 }
} };
int32_t verhoeff_checksum(std::string number, bool doValidation, bool doDisplay) {
int32_t verhoeff_checksum(std::string number, const bool doValidation, const bool doDisplay) {
if ( doDisplay ) {
std::string calculationType = doValidation ? "Validation" : "Check digit";
std::cout << calculationType << " calculations for " << number << "\n" << std::endl;
@ -67,12 +68,12 @@ int main( ) {
const std::array<data, 3> tests = {
std::make_pair("123", true), std::make_pair("12345", true), std::make_pair("123456789012", false) };
for ( data test : tests ) {
for ( const data& test : tests ) {
int32_t digit = verhoeff_checksum(test.first, false, test.second);
std::cout << "The check digit for " << test.first << " is " << digit << "\n" << std::endl;
std::string numbers[2] = { test.first + std::to_string(digit), test.first + "9" };
for ( std::string number : numbers ) {
for ( const std::string& number : numbers ) {
digit = verhoeff_checksum(number, true, test.second);
std::string result = ( digit == 1 ) ? "correct" : "incorrect";
std::cout << "The validation for " << number << " is " << result << ".\n" << std::endl;