invalid operands const char* to binary 'operator+'

SwissProgrammer

A question from help I was getting on page https://bytes.com/topic/c/answers/974514-what-minimum-requirements-all-17-planes-unicode-c#post3829190



There is a lot on that page, so I separated this into a new question.


Previous: I get the following error if I do not split up the next two lines

error: invalid operands of types 'const char*' and 'const char [23]' to binary 'operator+'

With error:
Without error:
I have been trying to understand this.
What is it saying that I need to do?


Help please.

Thank you.

Dec 12 '20 #1

dev7060

error: invalid operands of types 'const char*' and 'const char [23]' to binary 'operator+'

The overloaded operator+ expects at least one operand to be of string type. Try this:

Dec 15 '20 #2

SwissProgrammer

dev7060,

Thank you.

You said, "at least one operand" therefore I have been studying how to do this with the other parts:

_char
I found Microsoft documentation at https://www.techiedelight.com/conver...to-string-cpp/

and

stringByte
is already a string, but not quite acceptable because it filled it with

Expand|Select|Wrap|Line Numbers

1. stringByte = bitset<8>(_char).to_string();

which was not accepted by the compiler as a string.
I guess that I have to re-make it a string.

(I expect that "re-make it" is not the correct wording, but I am not certain how to say that.)

Using your guidance, I have studied this (some) and now can use this:


Thank you.

Dec 16 '20 #3