math: and: pass
math: atan2: pass
math: compl: pass
math: cos: pass
math: exp: pass
math: int: pass
math: log: pass
math: lshift: pass
math: or: pass
math: rand: pass
math: rshift: pass
math: sin: pass
math: sqrt: pass
math: srand: pass
math: xor: pass
string: gensub: pass
string: gensub (3 args): pass
string: gsub: pass
string: index: pass
string: dcgettext: pass
string: dcngettext: pass
string: length: pass
string: sprintf: pass
string: strtonum: pass
string: sub: pass
string: substr: pass
string: tolower: pass
string: toupper: pass
time: mktime: pass
time: strftime: pass
time: systime: pass
regexp: match: pass
regexp: patsplit: pass
regexp: patsplit: pass
regexp: patsplit: pass
regexp: split: pass
regexp: split: pass
regexp: split: pass
array: asort: pass
array: asorti: pass
array: isarray: pass
i/o: fflush: pass
i/o: close: pass
i/o: system: pass