ack/util/ncgg/coerc.h
George Koehler be1662dd15 Change the optional parameter of n_coerc() to a pointer
Fixes https://github.com/davidgiven/ack/issues/188

One call to n_coerc() omits the 6th and last argument.  This worked in
traditional K&R C, but stops working if we declare n_coerc() with a
prototype of all 6 parameters.

Change the last parameter to a pointer.  Declare n_coerc() with
prototype, so it now requires all 6 arguments.  Pass NULL when have no
iocc_t.  This NULL exists only to satisfy the prototype; n_coerc()
will not use this NULL.

A different fix would declare n_coerc() with 5 parameters and `...`,
then use <stdarg.h> to read the 6th argument when it exists.
2019-10-30 18:36:56 -04:00

30 lines
832 B
C

/* Copyright (c) 2019 ACK Project.
* See the copyright notice in the ACK home directory,
* in the file "Copyright".
*
* Created on: 2019-05-03
*
*/
#ifndef COERC_H_
#define COERC_H_
#include "iocc.h"
struct varinfo;
void n_move(int s1, int e1, int s2, int e2, struct varinfo *vi);
int existalmove(iocc_t from, int prpno);
struct varinfo *gen_move(iocc_t from, iocc_t to);
void n_test(int s, int e, struct varinfo *vi);
struct varinfo *gen_test(iocc_t from);
struct varinfo *gen_label(int arg);
struct varinfo *gen_preturn(void);
struct varinfo *gen_tlab(int n);
void n_stack(int s, int e, int p, struct varinfo *vi);
void checkstacking(register short *sp);
void n_coerc(int ti, int be, struct varinfo *al, struct varinfo *ge, struct varinfo *rp, iocc_p inp);
void checkunstacking(int setno);
#endif /* COERC_H_ */