1 #ifndef XPARAM_REG_MACROS_H 2 #define XPARAM_REG_MACROS_H 3 4 /* Copyright (C) 2001,2002,2003 Ronnie Maor and Michael Brand 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2, or (at your option) 9 * any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this software; see the file COPYING. If not, write to 18 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 19 * 20 * As a special exception, the copyright holders give permission 21 * for additional uses of the text contained in its release of XPARAM. 22 * 23 * The exception is that, if you link the XPARAM library with other files 24 * to produce an executable, this does not by itself cause the 25 * resulting executable to be covered by the GNU General Public License. 26 * Your use of that executable is in no way restricted on account of 27 * linking the XPARAM library code into it. 28 * 29 * This exception does not however invalidate any other reasons why 30 * the executable file might be covered by the GNU General Public License. 31 * 32 * If you write modifications of your own for XPARAM, it is your choice 33 * whether to permit this exception to apply to your modifications. 34 * If you do not wish that, delete this exception notice. 35 */ 36 37 /* 38 * Macros that make it easier to run code when program/library loads 39 */ 40 41 #include <cstdlib> 42 #include <exception> 43 #include <iostream> 44 #include "xp_config.h" 45 46 /* 47 This is what we want to get: 48 49 namespace { 50 namespace L##__LINE__ { 51 class GlobalCode { 52 public: 53 GlobalCode() { 54 try { 55 // user code here; 56 } 57 catch(std::exception& ex) { 58 std::cerr << "Error during global initialization - " 59 << std::endl << ex.what() << std::endl; 60 exit(-1); 61 } 62 catch(...) { 63 std::cerr << "Error during global initialization" 64 << std::endl; 65 exit(-1); 66 } 67 } 68 }; 69 70 GlobalCode global_code_instance; 71 } // end line namespace 72 } // end annonymous namespace 73 */ 74 75 #define APPEND2(x,y) x##y 76 #define APPEND(x,y) APPEND2(x,y) 77 78 #define PARAM_BEGIN_REG \ 79 namespace { \ 80 namespace APPEND(L,__LINE__) { \ 81 class GlobalCode { \ 82 public: \ 83 GlobalCode() { \ 84 try { 85 86 87 #define PARAM_END_REG \ 88 } \ 89 catch(std::exception& ex) { \ 90 std::cerr << "Error during global initialization - " \ 91 << std::endl << ex.what() << std::endl; \ 92 exit(-1); \ 93 } \ 94 catch(...) { \ 95 std::cerr << "Error during global initialization" \ 96 << std::endl; \ 97 exit(-1); \ 98 } \ 99 } \ 100 }; \ 101 GlobalCode global_code_instance; \ 102 } \ 103 } 104 105 106 #endif // XPARAM_REG_MACROS_H 107 108 109