最近做线性规划问题,要用到GLPK工具,VS2013环境下鼓捣了好久终于成功.下面一步步来展示一下环境的配置.
1.下载GLPK4.45版本 http://glpk-for-windows.soft112.com/ 然后解压.
2.用VS2013新建一个项目,命名为GLPK_TEST,源文件里建一个cpp文件命名为TESTGLPK.cpp
3.右键选择这个工程的属性,选择常规,看到右边的"附加包含目录",点击它,选择GLPK下的include文件夹路径,然后确定.
4.再找到属性下"链接器"-输入,可以看到右边第一个是添加依赖项,编辑它,在GLPK文件夹下面找到glpk_4_45.lib,选择并确定.
5.跟glpk_4_45.lib相同目录下有glpk_4_45.dll文件,把它直接复制到你的工程目录下面.
6.完成配置后可以输入代码测试一下,在GLPK说明文档里找一个例子,输入代码.
1 #include "stdio.h" 2 #include "glpk.h" 3 4 int main() 5 { 6 glp_prob *lp; 7 int ia[1 + 1000], ja[1 + 1000]; 8 double ar[1 + 1000], z, x1, x2, x3; 9 s1: lp = glp_create_prob(); 10 s2: glp_set_prob_name(lp, "sample"); 11 s3: glp_set_obj_dir(lp, GLP_MAX); 12 s4: glp_add_rows(lp, 3); 13 s5: glp_set_row_name(lp, 1, "p"); 14 s6: glp_set_row_bnds(lp, 1, GLP_UP, 0.0, 100.0); 15 s7: glp_set_row_name(lp, 2, "q"); 16 s8: glp_set_row_bnds(lp, 2, GLP_UP, 0.0, 600.0); 17 s9: glp_set_row_name(lp, 3, "r"); 18 s10: glp_set_row_bnds(lp, 3, GLP_UP, 0.0, 300.0); 19 s11: glp_add_cols(lp, 3); 20 s12: glp_set_col_name(lp, 1, "x1"); 21 s13: glp_set_col_bnds(lp, 1, GLP_LO, 0.0, 0.0); 22 s14: glp_set_obj_coef(lp, 1, 10.0); 23 s15: glp_set_col_name(lp, 2, "x2"); 24 s16: glp_set_col_bnds(lp, 2, GLP_LO, 0.0, 0.0); 25 s17: glp_set_obj_coef(lp, 2, 6.0); 26 s18: glp_set_col_name(lp, 3, "x3"); 27 s19: glp_set_col_bnds(lp, 3, GLP_LO, 0.0, 0.0); 28 s20: glp_set_obj_coef(lp, 3, 4.0); 29 s21: ia[1] = 1, ja[1] = 1, ar[1] = 1.0; /* a[1,1] = 1 */ 30 s22: ia[2] = 1, ja[2] = 2, ar[2] = 1.0; /* a[1,2] = 1 */ 31 s23: ia[3] = 1, ja[3] = 3, ar[3] = 1.0; /* a[1,3] = 1 */ 32 s24: ia[4] = 2, ja[4] = 1, ar[4] = 10.0; /* a[2,1] = 10 */ 33 s25: ia[5] = 3, ja[5] = 1, ar[5] = 2.0; /* a[3,1] = 2 */ 34 s26: ia[6] = 2, ja[6] = 2, ar[6] = 4.0; /* a[2,2] = 4 */ 35 s27: ia[7] = 3, ja[7] = 2, ar[7] = 2.0; /* a[3,2] = 2 */ 36 s28: ia[8] = 2, ja[8] = 3, ar[8] = 5.0; /* a[2,3] = 5 */ 37 s29: ia[9] = 3, ja[9] = 3, ar[9] = 6.0; /* a[3,3] = 6 */ 38 s30: glp_load_matrix(lp, 9, ia, ja, ar); 39 s31: glp_simplex(lp, NULL); 40 s32: z = glp_get_obj_val(lp); 41 s33: x1 = glp_get_col_prim(lp, 1); 42 s34: x2 = glp_get_col_prim(lp, 2); 43 s35: x3 = glp_get_col_prim(lp, 3); 44 s36: printf(" z = %g; x1 = %g; x2 = %g; x3 = %g ", 45 z, x1, x2, x3); 46 s37: glp_delete_prob(lp); 47 return 0; 48 }
运行一下,可以看到测试结果.
关于更多的GLPK使用与语法问题,可以参考doc文件夹下的说明文档.