# HG changeset patch # User athos # Date 1112869150 0 # Node ID c91ae3600eea17539ac4031158501ce985dd43fb # Parent 9269c76551cfe2618dae2c6226593ddf77b022df A sample file. diff -r 9269c76551cf -r c91ae3600eea src/work/athos/lp/Makefile --- a/src/work/athos/lp/Makefile Thu Apr 07 09:42:31 2005 +0000 +++ b/src/work/athos/lp/Makefile Thu Apr 07 10:19:10 2005 +0000 @@ -1,4 +1,5 @@ CXXFLAGS = -Wall -ggdb --no-inline -I../../.. +CXX = g++ all: lp_sample @@ -6,6 +7,7 @@ rm lp_test *.o lp_base.o: ../../../lemon/lp_base.cc ../../../lemon/lp_base.h lin_expr.h + $(CXX) $(CXXFLAGS) -c ../../../lemon/lp_base.cc -o $@ lp_solver_skeleton.o: lp_solver_skeleton.cc lp_solver_skeleton.h lp_base.h \ lin_expr.h diff -r 9269c76551cf -r c91ae3600eea src/work/athos/lp/lp_sample.cc --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/work/athos/lp/lp_sample.cc Thu Apr 07 10:19:10 2005 +0000 @@ -0,0 +1,69 @@ +//#include +//#include +#include +#include +using namespace lemon; + +int main() +{ + LpGlpk lp; + typedef LpGlpk::Row Row; + typedef LpGlpk::Col Col; + //std::cout << "Hello" << std::endl; + +// LPX *lp; +// int ia[1+1000], ja[1+1000]; +// double ar[1+1000], Z, x1, x2, x3; +// s1: lp = lpx_create_prob(); +// s2: lpx_set_prob_name(lp, "sample"); +// s3: lpx_set_obj_dir(lp, LPX_MAX); + lp.max(); +// s4: lpx_add_rows(lp, 3); +// s5: lpx_set_row_name(lp, 1, "p"); +// s6: lpx_set_row_bnds(lp, 1, LPX_UP, 0.0, 100.0); + +// Row p = lp.addRow(); + +// s7: lpx_set_row_name(lp, 2, "q"); +// s8: lpx_set_row_bnds(lp, 2, LPX_UP, 0.0, 600.0); + +// Row q = lp.addRow(); + +// s9: lpx_set_row_name(lp, 3, "r"); +// s10: lpx_set_row_bnds(lp, 3, LPX_UP, 0.0, 300.0); + +// Row r = lp.addRow(); + +// s11: lpx_add_cols(lp, 3); +// s12: lpx_set_col_name(lp, 1, "x1"); +// s13: lpx_set_col_bnds(lp, 1, LPX_LO, 0.0, 0.0); + +// Col x1 = lp.addCol(); + +// s14: lpx_set_obj_coef(lp, 1, 10.0); +// s15: lpx_set_col_name(lp, 2, "x2"); +// s16: lpx_set_col_bnds(lp, 2, LPX_LO, 0.0, 0.0); +// s17: lpx_set_obj_coef(lp, 2, 6.0); +// s18: lpx_set_col_name(lp, 3, "x3"); +// s19: lpx_set_col_bnds(lp, 3, LPX_LO, 0.0, 0.0); +// s20: lpx_set_obj_coef(lp, 3, 4.0); +// s21: ia[1] = 1, ja[1] = 1, ar[1] = 1.0; /* a[1,1] = 1 */ +// s22: ia[2] = 1, ja[2] = 2, ar[2] = 1.0; /* a[1,2] = 1 */ +// s23: ia[3] = 1, ja[3] = 3, ar[3] = 1.0; /* a[1,3] = 1 */ +// s24: ia[4] = 2, ja[4] = 1, ar[4] = 10.0; /* a[2,1] = 10 */ +// s25: ia[5] = 3, ja[5] = 1, ar[5] = 2.0; /* a[3,1] = 2 */ +// s26: ia[6] = 2, ja[6] = 2, ar[6] = 4.0; /* a[2,2] = 4 */ +// s27: ia[7] = 3, ja[7] = 2, ar[7] = 2.0; /* a[3,2] = 2 */ +// s28: ia[8] = 2, ja[8] = 3, ar[8] = 5.0; /* a[2,3] = 5 */ +// s29: ia[9] = 3, ja[9] = 3, ar[9] = 6.0; /* a[3,3] = 6 */ +// s30: lpx_load_matrix(lp, 9, ia, ja, ar); +// s31: lpx_simplex(lp); +// s32: Z = lpx_get_obj_val(lp); +// s33: x1 = lpx_get_col_prim(lp, 1); +// s34: x2 = lpx_get_col_prim(lp, 2); +// s35: x3 = lpx_get_col_prim(lp, 3); +// s36: printf("\nZ = %g; x1 = %g; x2 = %g; x3 = %g\n", Z, x1, x2, x3); +// s37: lpx_delete_prob(lp); +// return 0; + return 0; +}