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   This file is part of Aladdin Ghostscript.

   Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND.  No author
   or distributor accepts any responsibility for the consequences of using it,
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   or she says so in writing.  Refer to the Aladdin Ghostscript Free Public
   License (the "License") for full details.

   Every copy of Aladdin Ghostscript must include a copy of the License,
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 */

/*$Id: gxfunc.h $ */
/* Internal definitions for Functions */

#ifndef gxfunc_INCLUDED
#  define gxfunc_INCLUDED

#include "gsfunc.h"
#include "gsstruct.h"

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

/* Define the generic Function structure type.  This is never instantiated. */
extern_st(st_function);
#define public_st_function()	/* in gsfunc.c */\
  gs_public_st_ptrs2(st_function, gs_function_t, "gs_function_t",\
    function_enum_ptrs, function_reloc_ptrs, params.Domain, params.Range)

/* ---------------- Internal procedures ---------------- */

/* Generic free_params implementation. */
void fn_common_free_params(P2(gs_function_params_t * params, gs_memory_t * mem));

/* Generic free implementation. */
void fn_common_free(P3(gs_function_t * pfn, bool free_params, gs_memory_t * mem));

/* Check the values of m, n, Domain, and (if supplied) Range. */
int fn_check_mnDR(P3(const gs_function_params_t * params, int m, int n));

/* Get the monotonicity of a function over its Domain. */
int fn_domain_is_monotonic(P2(const gs_function_t *pfn,
			      gs_function_effort_t effort));

#endif /* gxfunc_INCLUDED */
