327 lines
9.5 KiB
C
327 lines
9.5 KiB
C
#ifndef HEADER_lp_types
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#define HEADER_lp_types
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/* Define data types */
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/* ------------------------------------------------------------------------- */
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#ifndef LLONG
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#if defined __BORLANDC__
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#define LLONG __int64
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#elif !defined _MSC_VER || _MSC_VER >= 1310
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#define LLONG long long
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#else
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#define LLONG __int64
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#endif
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#endif
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#ifndef COUNTER
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#define COUNTER LLONG
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#endif
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#ifndef REAL
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#define REAL double
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#endif
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#ifndef REALXP
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#if 1
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#define REALXP long double /* Set local accumulation variable as long double */
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#else
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#define REALXP REAL /* Set local accumulation as default precision */
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#endif
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#endif
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#ifndef LREAL
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#if 0
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#define LREAL long double /* Set global solution update variable as long double */
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#else
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#define LREAL REAL /* Set global solution update variable as default precision */
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#endif
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#endif
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#define RESULTVALUEMASK "%18.12g" /* Set fixed-format real-valued output precision;
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suggested width: ABS(exponent of DEF_EPSVALUE)+6. */
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#define INDEXVALUEMASK "%8d" /* Set fixed-format integer-valued output width */
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#ifndef DEF_STRBUFSIZE
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#define DEF_STRBUFSIZE 512
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#endif
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#ifndef MAXINT32
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#define MAXINT32 2147483647
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#endif
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#ifndef MAXUINT32
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#define MAXUINT32 4294967295
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#endif
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#ifndef MAXINT64
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#if defined _LONGLONG || defined __LONG_LONG_MAX__ || defined LLONG_MAX
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#define MAXINT64 9223372036854775807ll
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#else
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#define MAXINT64 9223372036854775807l
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#endif
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#endif
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#ifndef MAXUINT64
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#if defined _LONGLONG || defined __LONG_LONG_MAX__ || defined LLONG_MAX
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#define MAXUINT64 18446744073709551616ll
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#else
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#define MAXUINT64 18446744073709551616l
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#endif
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#endif
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#ifndef CHAR_BIT
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#define CHAR_BIT 8
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#endif
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#ifndef MYBOOL
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#define MYBOOL unsigned char /* Conserve memory, could be unsigned int */
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#endif
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/* Constants */
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/* ------------------------------------------------------------------------- */
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#ifndef NULL
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#define NULL 0
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#endif
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/* Byte-sized Booleans and extended options */
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#define FALSE 0
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#define TRUE 1
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#define AUTOMATIC 2
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#define DYNAMIC 4
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/* Sorting and comparison constants */
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#define COMP_PREFERCANDIDATE 1
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#define COMP_PREFERNONE 0
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#define COMP_PREFERINCUMBENT -1
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/* Library load status values */
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#define LIB_LOADED 0
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#define LIB_NOTFOUND 1
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#define LIB_NOINFO 2
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#define LIB_NOFUNCTION 3
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#define LIB_VERINVALID 4
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#define LIB_STR_LOADED "Successfully loaded"
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#define LIB_STR_NOTFOUND "File not found"
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#define LIB_STR_NOINFO "No version data"
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#define LIB_STR_NOFUNCTION "Missing function header"
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#define LIB_STR_VERINVALID "Incompatible version"
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#define LIB_STR_MAXLEN 23
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/* Compiler/target settings */
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/* ------------------------------------------------------------------------- */
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#if (defined _WIN32) || (defined WIN32) || (defined _WIN64) || (defined WIN64)
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# define __WINAPI WINAPI
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#else
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# define __WINAPI
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#endif
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#if (defined _WIN32) || (defined WIN32) || (defined _WIN64) || (defined WIN64)
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# define __VACALL __cdecl
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#else
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# define __VACALL
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#endif
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#ifndef __BORLANDC__
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#ifdef _USRDLL
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#if 1
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#define __EXPORT_TYPE __declspec(dllexport)
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#else
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/* Set up for the Microsoft compiler */
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#ifdef LP_SOLVE_EXPORTS
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#define __EXPORT_TYPE __declspec(dllexport)
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#else
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#define __EXPORT_TYPE __declspec(dllimport)
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#endif
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#endif
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#else
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#define __EXPORT_TYPE
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#endif
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#ifdef __cplusplus
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#define __EXTERN_C extern "C"
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#else
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#define __EXTERN_C
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#endif
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#else /* Otherwise set up for the Borland compiler */
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#ifdef __DLL__
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#define _USRDLL
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#define __EXTERN_C extern "C"
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#ifdef __READING_THE_DLL
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#define __EXPORT_TYPE __import
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#else
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#define __EXPORT_TYPE __export
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#endif
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#else
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#define __EXPORT_TYPE
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#define __EXTERN_C extern "C"
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#endif
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#endif
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#if 0
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#define STATIC static
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#else
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#define STATIC
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#endif
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#if !defined INLINE
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#if defined __cplusplus
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#define INLINE inline
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#elif (defined _WIN32) || (defined WIN32) || (defined _WIN64) || (defined WIN64)
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#define INLINE __inline
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#else
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#define INLINE static
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#endif
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#endif
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/* Function macros */
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/* ------------------------------------------------------------------------- */
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#define my_limitrange(x, lo, hi) ((x) < (lo) ? (lo) : ((x) > (hi) ? (hi) : (x)))
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#ifndef my_mod
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#define my_mod(n, m) ((n) % (m))
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#endif
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#define my_if(t, x, y) ((t) ? (x) : (y))
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#define my_sign(x) ((x) < 0 ? -1 : 1)
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#if 0
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#define my_chsign(t, x) ( ((t) && ((x) != 0)) ? -(x) : (x))
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#else
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#define my_chsign(t, x) ( (2*((t) == 0) - 1) * (x) ) /* "Pipelined" */
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#endif
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#define my_flipsign(x) ( fabs((REAL) (x)) == 0 ? 0 : -(x) )
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#define my_roundzero(val, eps) if (fabs((REAL) (val)) < eps) val = 0
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#define my_avoidtiny(val, eps) (fabs((REAL) (val)) < eps ? 0 : val)
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#if 1
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#define my_infinite(lp, val) ( (MYBOOL) (fabs(val) >= lp->infinite) )
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#else
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#define my_infinite(lp, val) is_infinite(lp, val)
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#endif
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#define my_inflimit(lp, val) ( my_infinite(lp, val) ? lp->infinite * my_sign(val) : (val) )
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#if 0
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#define my_precision(val, eps) ((fabs((REAL) (val))) < (eps) ? 0 : (val))
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#else
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#define my_precision(val, eps) restoreINT(val, eps)
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#endif
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#define my_reldiff(x, y) (((x) - (y)) / (1.0 + fabs((REAL) (y))))
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#define my_boundstr(x) (fabs(x) < lp->infinite ? sprintf("%g",x) : ((x) < 0 ? "-Inf" : "Inf") )
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#ifndef my_boolstr
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#define my_boolstr(x) (!(x) ? "FALSE" : "TRUE")
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#endif
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#define my_basisstr(isbasic) ((isbasic) ? "BASIC" : "NON-BASIC")
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#define my_simplexstr(isdual) ((isdual) ? "DUAL" : "PRIMAL")
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#define my_plural_std(count) (count == 1 ? "" : "s")
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#define my_plural_y(count) (count == 1 ? "y" : "ies")
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#define my_lowbound(x) ((FULLYBOUNDEDSIMPLEX) ? (x) : 0)
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/* Bound macros usable for both the standard and fully bounded simplex */
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/* ------------------------------------------------------------------------- */
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/*
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#define my_lowbo(lp, varnr) ( lp->isfullybounded ? lp->lowbo[varnr] : 0.0 )
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#define my_upbo(lp, varnr) ( lp->isfullybounded ? lp->upbo[varnr] : lp->lowbo[varnr] + lp->upbo[varnr] )
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#define my_rangebo(lp, varnr) ( lp->isfullybounded ? lp->upbo[varnr] - lp->lowbo[varnr] : lp->upbo[varnr] )
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*/
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#define my_lowbo(lp, varnr) ( 0.0 )
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#define my_upbo(lp, varnr) ( lp->lowbo[varnr] + lp->upbo[varnr] )
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#define my_rangebo(lp, varnr) ( lp->upbo[varnr] )
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#define my_unbounded(lp, varnr) ((lp->upbo[varnr] >= lp->infinite) && (lp->lowbo[varnr] <= -lp->infinite))
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#define my_bounded(lp, varnr) ((lp->upbo[varnr] < lp->infinite) && (lp->lowbo[varnr] > -lp->infinite))
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/* Forward declarations */
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/* ------------------------------------------------------------------------- */
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typedef struct _lprec lprec;
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typedef struct _INVrec INVrec;
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union QSORTrec;
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#ifndef UNIONTYPE
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#ifdef __cplusplus
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#define UNIONTYPE
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#else
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#define UNIONTYPE union
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#endif
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#endif
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/* B4 factorization optimization data */
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typedef struct _B4rec
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{
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int *B4_var; /* Position of basic columns in the B4 basis */
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int *var_B4; /* Variable in the B4 basis */
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int *B4_row; /* B4 position of the i'th row */
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int *row_B4; /* Original position of the i'th row */
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REAL *wcol;
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int *nzwcol;
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} B4rec;
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#define OBJ_STEPS 5
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typedef struct _OBJmonrec {
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lprec *lp;
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int oldpivstrategy,
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oldpivrule, pivrule, ruleswitches,
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limitstall[2], limitruleswitches,
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idxstep[OBJ_STEPS], countstep, startstep, currentstep,
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Rcycle, Ccycle, Ncycle, Mcycle, Icount;
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REAL thisobj, prevobj,
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objstep[OBJ_STEPS],
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thisinfeas, previnfeas,
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epsvalue;
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char spxfunc[10];
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MYBOOL pivdynamic;
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MYBOOL isdual;
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MYBOOL active;
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} OBJmonrec;
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typedef struct _edgerec
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{
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REAL *edgeVector;
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} edgerec;
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typedef struct _pricerec
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{
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REAL theta;
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REAL pivot;
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REAL epspivot;
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int varno;
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lprec *lp;
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MYBOOL isdual;
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} pricerec;
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typedef struct _multirec
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{
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lprec *lp;
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int size; /* The maximum number of multiply priced rows/columns */
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int used; /* The current / active number of multiply priced rows/columns */
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int limit; /* The active/used count at which a full update is triggered */
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pricerec *items; /* Array of best multiply priced rows/columns */
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int *freeList; /* The indeces of available positions in "items" */
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UNIONTYPE QSORTrec *sortedList; /* List of pointers to "pricerec" items in sorted order */
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REAL *stepList; /* Working array (values in sortedList order) */
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REAL *valueList; /* Working array (values in sortedList order) */
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int *indexSet; /* The final exported index list of pivot variables */
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int active; /* Index of currently active multiply priced row/column */
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int retries;
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REAL step_base;
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REAL step_last;
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REAL obj_base;
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REAL obj_last;
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REAL epszero;
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REAL maxpivot;
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REAL maxbound;
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MYBOOL sorted;
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MYBOOL truncinf;
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MYBOOL objcheck;
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MYBOOL dirty;
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} multirec;
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#endif /* HEADER_lp_types */
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