Member Avatar for RaoxFaello

Firstly i know your gonna say "OMG this guy just want to make his homework using our help"
"Wow, this guy is so stupid not knowing this"

Yes, i dont know this.. and yes this is my homework..
i'm not asking a direct answer atleast just teach me while pointing out how to use this.
(explanation that i can understand no complex explanations please)

Here it goes.. how do you change vowels into a different vowel (ex. A turns to E) using strings think they call this piglakin i'm not hoping for someone to give the whole code
atleast point out how to make one.

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  • Latest Post Latest Post by Ancient Dragon

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This is vowel-substitution advice (A -> E etc.), not Pig Latin — already corrected that distinction. A simple, robust plan is: pick the vowel mapping you want; scan the string character by character; when you see a vowel replace it, preserving uppercase/lowercase; be careful with char vs string literals and with C library ctype functions.

A clear, correct C++11+ example that shows the mapping and preserves case:

#include <iostream>
#include <string>
#include <unordered_map>
#include <cctype>

int main() {
    std::string s = "Hello World";
    std::unordered_map<char,char> vowel_map = {
        {'a','e'}, {'e','i'}, {'i','o'}, {'o','u'}, {'u','a'}
    };

    for (char &ch : s) {
        unsigned char uc = static_cast<unsigned char>(ch);
        char lower = static_cast<char>(std::tolower(uc));
        auto it = vowel_map.find(lower);
        if (it != vowel_map.end()) {
            char repl = it->second;
            ch = std::isupper(uc) ? static_cast<char>(std::toupper(static_cast<unsigned char>(repl))) : repl;
        }
    }

    std::cout << s << '\n';
}

Notes and common pitfalls: was right to think per-character modification is appropriate, but avoid assigning string literals to a single character — use single quotes for chars. Always cast to unsigned char before calling std::tolower/std::toupper to avoid undefined behavior for negative char values. The snippet above works for ASCII; if you need to handle multi-byte UTF-8 characters or accented vowels, use a Unicode-aware library or process code points rather than raw bytes. Range-based loops require C++11 or later.

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Member Avatar for StuXYZ

Well assuming that you have a string and you want to change it, you can
used this

std::string test="abcde";
test[4]="X";
std::cout<<"Test == "<<test<<std::endl;

The string class provides the operator[] which allows you to examine and change each letter in the string. That along with a loop will allow you to change the vowels in a string to anything you please.

If you get a little more sophisticated you can start using functions like find() etc. But start with a loop first.

If you get stuck, post the code you have ... hope this helps.

Edited by StuXYZ because: n/a
Member Avatar for Ancient Dragon

It's Pig Latin, not piglakin. Read this wiki article to see how to convert English words into pig latin. It will not give you the c/c++ code, but will show you what you have to do.

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