c++ void
there seem have a problem at line line 28,64,66
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#include <iostream>
using namespace std;
void concatonate(){
string first,second,third,all;
cout << "Enter your First Name: ";
cin >> first;
cout << "Enter your Middle Name: ";
cin >> second;
cout << "Enter your Surname: ";
cin >> third;
all = first + " " + second + " " + third;
cout << all;
}
void lenght(){
char word;
cout << "Enter a word ";
while(!(cin >> word)){
cout << "Integers are Invalid: ";
cin .clear();
cin.ignore(100 , '\n');
}
cout << "Word: \n" << word;
cout << "contains:" << word.length();
}
void changeletter(){
char first[100],second;
cout << "Enter a string: ";
cin >> first;
cout << "Change the First letter: ";
cin >> second;
first[0] = second;
cout << first;
}
void array(){
char choice;
cout << "A.Single or B.Multi\n";
cin >> choice;
while(!(choice == 'a' || choice == 'A') && (choice == 'b' || choice == 'B')){
cout << "Must choose only the choices above: ";
cin >> choice;
cin.clear();
cin.ignore(100 , '\n');
}
if(choice == 'a' || choice == 'A'){
char chc;
cout << "A.Integer or B.String: ";
cin >> chc;
while(!(chc == 'a' || chc == 'A') && (chc == 'b' || chc == 'B')){
cout << "Must choose only the choices above: ";
cin >> chc;
cin.clear();
cin.ignore(100,'\n');
}
if(chc == 'a' || chc == 'A'){
singleint();
}else if(chc == 'b' || chc == 'B'){
singlestring();
}
}
}
void singleint(){
int num [3];
cout << "Enter three numbers: ";
for(int i = 0; i < 3; i++){
cin >> num[i];
}
cout << "The Numbers are: ";
for (int g = 0; g < 3; g++){
cout << num[g];
}
}
void singlestring(){
string name[5];
cout << "Enter 5 Names: ";
for (int i = 0; i < 5; i++){
cin >> name[i];
}
for(int g = 0; g < 5; g++){
cout << name[g];
}
}
int main (){
cout << "All CT-203\n";
char choice;
while(choice == 'y' || choice == 'Y'){
char opt;
cout << "A.Concatonate\n";
cout << "B.Lenghts of a string\n";
cout << "C.Changing a Letter \n";
cout << "D.Array\n";
cin >> opt;
while(!(opt == 'a' || opt == 'A') && (opt == 'B' || opt == 'B') && (opt == 'c' || opt == 'C') && (opt == 'd' || opt == 'D')){
cout << "Only enter in the options above: ";
cin.clear();
cin.ignore(100, '\n');
cin >> opt;
}
if(opt == 'A' || opt == 'a'){
concatonate();
cout << "Would you like to make another transaction? [Y/N]";
cin >> choice;
while(!(choice == 'y' || choice == 'Y') && (choice == 'n' || choice == 'N')){
cout << "Choose ONLY [Y/N]: ";
cin >> choice;
cin.clear();
cin.ignore(100 , '\n');
}
}else if (opt == 'B' || opt == 'b'){
lenght();
cout << "Would you like to make another transaction? [Y/N]";
cin >> choice;
while(!(choice == 'Y' || choice == 'y') && (choice == 'n' || choice == 'N')){
cout << "Choose ONLY [Y/N]: ";
cin >> choice;
cin.clear();
cin.ignore(100 , '\n');
}
}
}
}
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Looks like you want word to be of type std::string.
You cannot call a function before it has been declared. Either move the definitions of singleint() and singlestring() above the definition of array()
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void singleint(){
...
}
void singlestring(){
...
}
void array(){
...
singleint();
...
singlestring();
...
}
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Or leave the definitions where they are and just declare (without defining) singleint() and singlestring() above array().
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void singleint();
void singlestring();
void array(){
...
singleint();
...
singlestring();
...
}
void singleint(){
...
}
void singlestring(){
...
}
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Last edited on
thank you, that worked. still having problems at 28 tho.
never mind i got 28
Without knowing the exercise requirements, consider something like:
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#include <iostream>
#include <string>
using namespace std;
void concatonate() {
string first, second, third;
cout << "Enter your First Name: ";
cin >> first;
cout << "Enter your Middle Name: ";
cin >> second;
cout << "Enter your Surname: ";
cin >> third;
cout << first + ' ' + second + ' ' + third;
}
void lenght() {
string word;
while (cout << "Enter a word " && !(cin >> word)) {
cout << "Invalid input\n";
cin.clear();
cin.ignore(100, '\n');
}
cout << "Word: " << word;
cout << "\ncontains: " << word.length() << " chars\n";
}
void changeletter() {
string first;
char second {};
cout << "Enter a string: ";
getline(cin >> ws, first);
cout << "Change the First letter to: ";
cin >> second;
first.front() = second;
cout << first;
}
void singleint() {
int num[3] {};
cout << "Enter three numbers: ";
for (int i = 0; i < 3; ++i)
cin >> num[i];
cout << "\nThe Numbers are: ";
for (int g = 0; g < 3; ++g)
cout << num[g] << ' ';
cout << '\n';
}
void singlestring() {
string name[5];
cout << "Enter 5 Names: ";
for (int i = 0; i < 5; ++i) {
cin >> name[i];
}
cout << "\nThe names are: ";
for (int g = 0; g < 5; g++) {
cout << name[g] << ' ';
}
cout << '\n';
}
void arrays() {
char choice { };
cout << "A. Single or B. Multi: ";
cin >> choice;
while (!(choice == 'a' || choice == 'A' || choice == 'b' || choice == 'B')) {
cout << "Must choose only the choices above: ";
cin.clear();
cin.ignore(100, '\n');
cin >> choice;
}
if (choice == 'a' || choice == 'A') {
char chc {};
cout << "A. Integer or B. String: ";
cin >> chc;
while (!(chc == 'a' || chc == 'A' || chc == 'b' || chc == 'B')) {
cout << "Must choose only the choices above: ";
cin.clear();
cin.ignore(100, '\n');
cin >> chc;
}
chc == 'a' || chc == 'A' ? singleint() : singlestring();
} else
cout << "[Multi not yet implemented]\n";
}
int main() {
for (char opt { 'A' }; !(opt == 'E' || opt == 'e'); ) {
cout << "\nA. Concatenate\n";
cout << "B. Lengths of a string\n";
cout << "C. Changing a Letter \n";
cout << "D. Array\n";
cout << "E. Exit\n";
cout << "Enter option: ";
cin >> opt;
switch (opt) {
case 'a':
case 'A':
concatonate();
break;
case 'b':
case 'B':
lenght();
break;
case 'c':
case 'C':
changeletter();
break;
case 'd':
case 'D':
arrays();
break;
case 'e':
case 'E':
break;
default:
cout << "Invalid option.\n";
cin.clear();
cin.ignore(100, '\n');
break;
}
}
}
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