cri.cpp:4:17: tuple: No such file or directory cri.cpp:13: `tuple' was not declared in this scope cri.cpp:13: parse error before `,' token cri.cpp:15: `tuple' was not declared in this scope cri.cpp:15: parse error before `,' token cri.cpp: In function `bool crit(...)': cri.cpp:16: `get' undeclared (first use this function) cri.cpp:16: (Each undeclared identifier is reported only once for each function it appears in.) cri.cpp:16: `b' undeclared (first use this function) cri.cpp: In function `int main()': cri.cpp:44: `var' undeclared (first use this function) cri.cpp:44: `make_tuple' undeclared (first use this function)