Re: replacing if-then-else strcmp ladders with switch cases

On Fri, 12 Jun 2020 12:05:55 -0600, jim.cromie@gmail.com said:

considering lib/dynamic_debug.c we have

... } else if (!strcmp(words[i], "module")) { rc = check_set(&query->module, words[i+1], "module"); } else if (!strcmp(words[i], "format")) { ...

are there any built-in hash functions which would allow this ?

switch (keyword) { case Hash("module"): ..... break; case Hash("format"): .... break; default: return -EINVAL }

There's hash functions. But they're all cryptographic hashes that return things that are far too many bits to use as the index of a switch. Also, you have the problem that the cases of a switch have to be something that can be evaluated at compile time....