A sample file.
1.1 --- a/src/work/athos/lp/Makefile Thu Apr 07 09:42:31 2005 +0000
1.2 +++ b/src/work/athos/lp/Makefile Thu Apr 07 10:19:10 2005 +0000
1.3 @@ -1,4 +1,5 @@
1.4 CXXFLAGS = -Wall -ggdb --no-inline -I../../..
1.5 +CXX = g++
1.6
1.7 all: lp_sample
1.8
1.9 @@ -6,6 +7,7 @@
1.10 rm lp_test *.o
1.11
1.12 lp_base.o: ../../../lemon/lp_base.cc ../../../lemon/lp_base.h lin_expr.h
1.13 + $(CXX) $(CXXFLAGS) -c ../../../lemon/lp_base.cc -o $@
1.14
1.15 lp_solver_skeleton.o: lp_solver_skeleton.cc lp_solver_skeleton.h lp_base.h \
1.16 lin_expr.h
2.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
2.2 +++ b/src/work/athos/lp/lp_sample.cc Thu Apr 07 10:19:10 2005 +0000
2.3 @@ -0,0 +1,69 @@
2.4 +//#include <stdio.h>
2.5 +//#include <stdlib.h>
2.6 +#include <iostream>
2.7 +#include <lemon/lp_glpk.h>
2.8 +using namespace lemon;
2.9 +
2.10 +int main()
2.11 +{
2.12 + LpGlpk lp;
2.13 + typedef LpGlpk::Row Row;
2.14 + typedef LpGlpk::Col Col;
2.15 + //std::cout << "Hello" << std::endl;
2.16 +
2.17 +// LPX *lp;
2.18 +// int ia[1+1000], ja[1+1000];
2.19 +// double ar[1+1000], Z, x1, x2, x3;
2.20 +// s1: lp = lpx_create_prob();
2.21 +// s2: lpx_set_prob_name(lp, "sample");
2.22 +// s3: lpx_set_obj_dir(lp, LPX_MAX);
2.23 + lp.max();
2.24 +// s4: lpx_add_rows(lp, 3);
2.25 +// s5: lpx_set_row_name(lp, 1, "p");
2.26 +// s6: lpx_set_row_bnds(lp, 1, LPX_UP, 0.0, 100.0);
2.27 +
2.28 +// Row p = lp.addRow();
2.29 +
2.30 +// s7: lpx_set_row_name(lp, 2, "q");
2.31 +// s8: lpx_set_row_bnds(lp, 2, LPX_UP, 0.0, 600.0);
2.32 +
2.33 +// Row q = lp.addRow();
2.34 +
2.35 +// s9: lpx_set_row_name(lp, 3, "r");
2.36 +// s10: lpx_set_row_bnds(lp, 3, LPX_UP, 0.0, 300.0);
2.37 +
2.38 +// Row r = lp.addRow();
2.39 +
2.40 +// s11: lpx_add_cols(lp, 3);
2.41 +// s12: lpx_set_col_name(lp, 1, "x1");
2.42 +// s13: lpx_set_col_bnds(lp, 1, LPX_LO, 0.0, 0.0);
2.43 +
2.44 +// Col x1 = lp.addCol();
2.45 +
2.46 +// s14: lpx_set_obj_coef(lp, 1, 10.0);
2.47 +// s15: lpx_set_col_name(lp, 2, "x2");
2.48 +// s16: lpx_set_col_bnds(lp, 2, LPX_LO, 0.0, 0.0);
2.49 +// s17: lpx_set_obj_coef(lp, 2, 6.0);
2.50 +// s18: lpx_set_col_name(lp, 3, "x3");
2.51 +// s19: lpx_set_col_bnds(lp, 3, LPX_LO, 0.0, 0.0);
2.52 +// s20: lpx_set_obj_coef(lp, 3, 4.0);
2.53 +// s21: ia[1] = 1, ja[1] = 1, ar[1] = 1.0; /* a[1,1] = 1 */
2.54 +// s22: ia[2] = 1, ja[2] = 2, ar[2] = 1.0; /* a[1,2] = 1 */
2.55 +// s23: ia[3] = 1, ja[3] = 3, ar[3] = 1.0; /* a[1,3] = 1 */
2.56 +// s24: ia[4] = 2, ja[4] = 1, ar[4] = 10.0; /* a[2,1] = 10 */
2.57 +// s25: ia[5] = 3, ja[5] = 1, ar[5] = 2.0; /* a[3,1] = 2 */
2.58 +// s26: ia[6] = 2, ja[6] = 2, ar[6] = 4.0; /* a[2,2] = 4 */
2.59 +// s27: ia[7] = 3, ja[7] = 2, ar[7] = 2.0; /* a[3,2] = 2 */
2.60 +// s28: ia[8] = 2, ja[8] = 3, ar[8] = 5.0; /* a[2,3] = 5 */
2.61 +// s29: ia[9] = 3, ja[9] = 3, ar[9] = 6.0; /* a[3,3] = 6 */
2.62 +// s30: lpx_load_matrix(lp, 9, ia, ja, ar);
2.63 +// s31: lpx_simplex(lp);
2.64 +// s32: Z = lpx_get_obj_val(lp);
2.65 +// s33: x1 = lpx_get_col_prim(lp, 1);
2.66 +// s34: x2 = lpx_get_col_prim(lp, 2);
2.67 +// s35: x3 = lpx_get_col_prim(lp, 3);
2.68 +// s36: printf("\nZ = %g; x1 = %g; x2 = %g; x3 = %g\n", Z, x1, x2, x3);
2.69 +// s37: lpx_delete_prob(lp);
2.70 +// return 0;
2.71 + return 0;
2.72 +}