C++ function to replace all occurrences of a substring in a string

StringReplace.cpp

using namespace std;

string replaceAll(string str, const string &from, const string &to)
{
    size_t start_pos = 0;
    while ((start_pos = str.find(from, start_pos)) != string::npos)
    {
        str.replace(start_pos, from.length(), to);
        start_pos += to.length(); // Handles case where 'to' is a substring of 'from'
    }
    return str;
}

int main()
{
    string errString = "This docment uses 3 other docments to docment the docmentation";
    string correctString = replaceAll(errString, "docment", "document");
    return 0;
}

Hello
Tell me, if I need to change all substrings of type "cos" to a substring of the "sin" type in several files, when downloading from the network. The file name is not known. We use C ++. How to do it?

If you have a comment regarding the function above, post here, otherwise you can ask on StackOverflow.

Yes, I do. Does C++ not natively perform a Replace All when calling mystring->Replace("'", "")? I'm asking because my company is using a function that replaces the first quote, but I'm not sure it replaces all quotes.

Here's the code that troubles me:

String^ BaseForm::SafeString(Object^ strVal)
{
	String^ strRetVal = strVal->ToString();
	if (strVal != nullptr)
	{
		strRetVal = strRetVal->Replace("'", "''");
		strRetVal = strRetVal->TrimEnd();
	}
	return strRetVal;
}

In native C++, it seems to only replace one occurrence of a substring and you have to give it the offsets: https://cplusplus.com/reference/string/string/replace/

In C++/CLI, like the example you've shown above, it replaces all occurrences of the substring: https://learn.microsoft.com/en-us/dotnet/api/system.string.replace