compiler warning cleanups
Clears up 32 out of 49 -Wdiscarded-qualifiers
warnings from gcc, along with a -Wsign-compare
warning, a -Wshadow
warning, and 2 -Wsuggest-attribute=noreturn
warnings.
Clears up 32 out of 49 -Wdiscarded-qualifiers
warnings from gcc, along with a -Wsign-compare
warning, a -Wshadow
warning, and 2 -Wsuggest-attribute=noreturn
warnings.