2 typedef unsigned char symbol;
4 /* Or replace 'char' above with 'short' for 16 bit characters.
6 More precisely, replace 'char' with whatever type guarantees the
7 character width you need. Note however that sizeof(symbol) should divide
8 HEAD, defined in header.h as 2*sizeof(int), without remainder, otherwise
9 there is an alignment problem. In the unlikely event of a problem here,
10 consult Martin Porter.
31 extern struct SN_env *SN_create_env(int S_size, int I_size, int B_size);
32 extern void SN_close_env(struct SN_env * z);
34 extern int SN_set_current(struct SN_env * z, int size, const symbol * s);