1T(CX_LIMITED_RANGE)
2T(DEFAULT)
3T(FENV_ACCESS)
4T(FP_CONTRACT)
5T(OFF)
6T(ON)
7T(STDC)
8T(define)
9T(defined)
10T(elif)
11T(else)  /* remember that this gives T_else, not T_IDENTIFIER like most others */
12T(endif)
13T(error)
14T(if)    /* remember that this gives T_if */
15T(ifdef)
16T(ifndef)
17T(include)
18T(include_next)
19T(line)
20T(pragma)
21T(undef)
22