> @stepanblyschak strictly speaking, strdup is not efficient in this use case. If we can use C++, do we have much better solution? I found a C++20 solution https://stackoverflow.com/a/69550517/2514803.

[qiluo-msft]

          > @stepanblyschak strictly speaking, `strdup` is not efficient in this use case. If we can use C++, do we have much better solution? I found a C++20 solution https://stackoverflow.com/a/69550517/2514803.

@qiluo-msft I didn't aim to improve efficiency. With the current approach taken to to remove @ from a string, the algorithm is - tokenize into prefix and suffix and concatenate both - that requires memory allocation. This is not the most efficient way to solve this, I agree, but this is a blocking issue for us, so instead of rewriting algorithm a fix for the originally intended algorithm was proposed to fix a bug.

Originally posted by @stepanblyschak in #13647 (comment)

[qiluo-msft]

strdup is not efficient in this use case. If we can use C++, do we have much better solution? I found a C++20 solution https://stackoverflow.com/a/69550517/2514803.