/* Portions Copyright (C) 2001 artofcode LLC.
   Portions Copyright (C) 1996, 2001 Artifex Software Inc.
   Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
   This software is based in part on the work of the Independent JPEG Group.
   All Rights Reserved.

   This software is distributed under license and may not be copied, modified
   or distributed except as expressly authorized under the terms of that
   license.  Refer to licensing information at http://www.artifex.com/ or
   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
   San Rafael, CA  94903, (415)492-9861, for further information. */

/*$RCSfile: gsfunc4.h,v $ $Revision: 1.3 $ */
/* Definitions for "PostScript Calculator" Functions */

#ifndef gsfunc4_INCLUDED
#  define gsfunc4_INCLUDED

#include "gsfunc.h"

/* ---------------- Types and structures ---------------- */

/* Define the Function type. */
#define function_type_PostScript_Calculator 4

/* Define the opcodes. */
typedef enum {

    /* Arithmetic operators */

    PtCr_abs, PtCr_add, PtCr_and, PtCr_atan, PtCr_bitshift,
    PtCr_ceiling, PtCr_cos, PtCr_cvi, PtCr_cvr, PtCr_div, PtCr_exp,
    PtCr_floor, PtCr_idiv, PtCr_ln, PtCr_log, PtCr_mod, PtCr_mul,
    PtCr_neg, PtCr_not, PtCr_or, PtCr_round,
    PtCr_sin, PtCr_sqrt, PtCr_sub, PtCr_truncate, PtCr_xor,

    /* Comparison operators */

    PtCr_eq, PtCr_ge, PtCr_gt, PtCr_le, PtCr_lt, PtCr_ne,

    /* Stack operators */

    PtCr_copy, PtCr_dup, PtCr_exch, PtCr_index, PtCr_pop, PtCr_roll,

    /* Constants */

    PtCr_byte, PtCr_int /* native */, PtCr_float /* native */,
    PtCr_true, PtCr_false,

    /* Special operators */

    PtCr_if, PtCr_else, PtCr_return

} gs_PtCr_opcode_t;
#define PtCr_NUM_OPS ((int)PtCr_byte)
#define PtCr_NUM_OPCODES ((int)PtCr_return + 1)

/* Define PostScript Calculator functions. */
typedef struct gs_function_PtCr_params_s {
    gs_function_params_common;
    gs_const_string ops;	/* gs_PtCr_opcode_t[] */
} gs_function_PtCr_params_t;

/****** NEEDS TO INCLUDE data_source ******/
#define private_st_function_PtCr()	/* in gsfunc4.c */\
  gs_private_st_suffix_add_strings1(st_function_PtCr, gs_function_PtCr_t,\
    "gs_function_PtCr_t", function_PtCr_enum_ptrs, function_PtCr_reloc_ptrs,\
    st_function, params.ops)

/* ---------------- Procedures ---------------- */

/* Allocate and initialize a PostScript Calculator function. */
int gs_function_PtCr_init(gs_function_t ** ppfn,
			  const gs_function_PtCr_params_t * params,
			  gs_memory_t * mem);

/* Free the parameters of a PostScript Calculator function. */
void gs_function_PtCr_free_params(gs_function_PtCr_params_t * params,
				  gs_memory_t * mem);

#endif /* gsfunc4_INCLUDED */
