Code Golf: strlen() implementation

Dec 15, 2017 · 1 min read
size_t strlen(const char *s) 

How does it work?

First, let’s create our string, a simple “Hello world!”.
Next, by recursion, we will iterate the whole array (string), until we find the null character.
Now, we have our pointer (used as a counter) value saved in memory.
And viola! We exit from the recursion, and return the length of the string.


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