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Whether there's more complexity behind it, I can't say. ), it would look something more like this instead: Not so nice, is it? Making statements based on opinion; back them up with references or personal experience. Through it more complex, convention avoids many buffer overflows, overusing stack space and much more thread safe than using "static". In the last chapter, we looked at some code for converting an integer into a string of digits representing its value. How a top-ranked engineering school reimagined CS curriculum (Ep. I do agree with the change, but as an advice, never assume the op will know the same things than you. Not the answer you're looking for? Connect and share knowledge within a single location that is structured and easy to search. Find centralized, trusted content and collaborate around the technologies you use most. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? 1. In C++, you can't return a variable of an array type (i.e. Why is reading lines from stdin much slower in C++ than Python? I only have to add that you need to account for the terminating null character of. Connect and share knowledge within a single location that is structured and easy to search. I disagree. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How do I iterate over the words of a string? That thing on the stack is just a pointer variable and you return the value of the pointer (the address it stores) by value. Very old versions of C did not even allow returning structs from functions, only scalar values (numerical types and pointers). 1. const char* ptr; . You have two options for returning an array in C++. Not the answer you're looking for? Without knowing the details of what you're doing, I'm going to assume one of two things are true: 1) The purpose of the function is to create and return an array of strings. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0. Can I use my Coinbase address to receive bitcoin? Was Aristarchus the first to propose heliocentrism? 1) Allocate your array on the heap using malloc(), and return a pointer to it. rev2023.5.1.43405. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. in mycharstack() the string is stored on stack I guess, so as "ch" goes out of scope, it should not be able to return the string. What were the most popular text editors for MS-DOS in the 1980s? Return char arrays from C++ to C# - social.msdn.microsoft.com Making statements based on opinion; back them up with references or personal experience. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. And will come across the right way of returning an array from a function using 3 approaches i.e. It's that you are reserving memory via malloc, but. Finally there is the problem that the return type is "pointer to char", while you're attempting to return an array of arrays of pointers to char. So you can accept the output array you need to return, as a parameter to the function. get a proper answer. A basic example would look like this: I didn't really notice this for a while because the char arrays when outputted to the console didn't appear to be corrupt (probably because there wasn't time for that data to be overwritten).