read_number
read_number(int c, FILE *cfile)
read_number(struct bwstring *s0, int *sign, wchar_t *smain, size_t *main_len, wchar_t *sfrac, size_t *frac_len, unsigned char *si)
read_number(const char *tok, u_int base, intmax_t *res, intmax_t min,