What is wasted in this example from the Cpp Core Guidelines?
c++, cpp-core-guidelines
Solution
strlen is calculated at every iteration of the loop.
Problem
What is wasted in the example from the Cpp Core Guidelines? P.9: Don't waste time or space [...] ``` void lower(zstring s) { for (int i = 0; i < strlen(s); ++i) s[i] = tolower(s[i]); } ``` Yes, this is an example from production code. We leave it to the reader to figure out what's wasted. from https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Rp-waste