1 /* glplib.h (miscellaneous library routines) */
3 /***********************************************************************
4 * This code is part of GLPK (GNU Linear Programming Kit).
6 * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
7 * 2009, 2010 Andrew Makhorin, Department for Applied Informatics,
8 * Moscow Aviation Institute, Moscow, Russia. All rights reserved.
9 * E-mail: <mao@gnu.org>.
11 * GLPK is free software: you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * GLPK is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
18 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
19 * License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with GLPK. If not, see <http://www.gnu.org/licenses/>.
23 ***********************************************************************/
28 #define bigmul _glp_lib_bigmul
29 void bigmul(int n, int m, unsigned short x[], unsigned short y[]);
30 /* multiply unsigned integer numbers of arbitrary precision */
32 #define bigdiv _glp_lib_bigdiv
33 void bigdiv(int n, int m, unsigned short x[], unsigned short y[]);
34 /* divide unsigned integer numbers of arbitrary precision */
36 #ifndef GLP_LONG_DEFINED
37 #define GLP_LONG_DEFINED
38 typedef struct { int lo, hi; } glp_long;
39 /* long integer data type */
42 typedef struct { glp_long quot, rem; } glp_ldiv;
43 /* result of long integer division */
45 #define xlset _glp_lib_xlset
46 glp_long xlset(int x);
47 /* expand integer to long integer */
49 #define xlneg _glp_lib_xlneg
50 glp_long xlneg(glp_long x);
51 /* negate long integer */
53 #define xladd _glp_lib_xladd
54 glp_long xladd(glp_long x, glp_long y);
55 /* add long integers */
57 #define xlsub _glp_lib_xlsub
58 glp_long xlsub(glp_long x, glp_long y);
59 /* subtract long integers */
61 #define xlcmp _glp_lib_xlcmp
62 int xlcmp(glp_long x, glp_long y);
63 /* compare long integers */
65 #define xlmul _glp_lib_xlmul
66 glp_long xlmul(glp_long x, glp_long y);
67 /* multiply long integers */
69 #define xldiv _glp_lib_xldiv
70 glp_ldiv xldiv(glp_long x, glp_long y);
71 /* divide long integers */
73 #define xltod _glp_lib_xltod
74 double xltod(glp_long x);
75 /* convert long integer to double */
77 #define xltoa _glp_lib_xltoa
78 char *xltoa(glp_long x, char *s);
79 /* convert long integer to character string */
81 #define str2int _glp_lib_str2int
82 int str2int(const char *str, int *val);
83 /* convert character string to value of int type */
85 #define str2num _glp_lib_str2num
86 int str2num(const char *str, double *val);
87 /* convert character string to value of double type */
89 #define strspx _glp_lib_strspx
90 char *strspx(char *str);
91 /* remove all spaces from character string */
93 #define strtrim _glp_lib_strtrim
94 char *strtrim(char *str);
95 /* remove trailing spaces from character string */
97 #define strrev _glp_lib_strrev
98 char *strrev(char *s);
99 /* reverse character string */
101 #define gcd _glp_lib_gcd
102 int gcd(int x, int y);
103 /* find greatest common divisor of two integers */
105 #define gcdn _glp_lib_gcdn
106 int gcdn(int n, int x[]);
107 /* find greatest common divisor of n integers */
109 #define lcm _glp_lib_lcm
110 int lcm(int x, int y);
111 /* find least common multiple of two integers */
113 #define lcmn _glp_lib_lcmn
114 int lcmn(int n, int x[]);
115 /* find least common multiple of n integers */
117 #define round2n _glp_lib_round2n
118 double round2n(double x);
119 /* round floating-point number to nearest power of two */
121 #define fp2rat _glp_lib_fp2rat
122 int fp2rat(double x, double eps, double *p, double *q);
123 /* convert floating-point number to rational number */
125 #define jday _glp_lib_jday
126 int jday(int d, int m, int y);
127 /* convert calendar date to Julian day number */
129 #define jdate _glp_lib_jdate
130 int jdate(int j, int *d, int *m, int *y);
131 /* convert Julian day number to calendar date */