I’m getting an error when compiling my code. expected expression before ‘>=’ token [closed]

by

First of all, there are some braces missing in the if blocks. They look like this

if (encrypt <= 'A' && encrypt >= 'Z')
{
    encrypt = encrypt + shift;

But there should be a } after that. Also, you have conditions like those:

(encrypt <= 'a' && >= 'z')

I think you meant (encrypt <= 'a' && encrypt >= 'z') instead. Likewise for the encrypt part. All in all the code fragment should probably look like this:

if (encrypt <= 'A' && encrypt >= 'Z')
{
    encrypt = encrypt + shift;
}
else if (encrypt <= 'a' &&encrypt >= 'z')
{
    encrypt = encrypt + shift;
}
if (decrypt <= 'A' && decrypt >= 'Z')
{
    decrypt = decrypt - shift;
}

else if (decrypt <= 'a' && decrypt >= 'z')
{...}

A tip for future questions: your snippet was sufficient for demonstrating the issue, but it took some effort to get it to work. It is generally appreciated when there’s a Minimal, Complete, and Verifiable example that people can just plop into their IDE and run.

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