/*============================================================================ KWSys - Kitware System Library Copyright 2000-2009 Kitware, Inc., Insight Software Consortium Distributed under the OSI-approved BSD License (the "License"); see accompanying file Copyright.txt for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more information. ============================================================================*/ /* Macros to define main() in a cross-platform way. Usage: int KWSYS_PLATFORM_TEST_C_MAIN() { return 0; } int KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) { (void)argc; (void)argv; return 0; } */ #if defined(__CLASSIC_C__) # define KWSYS_PLATFORM_TEST_C_MAIN() \ main() # define KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) \ main(argc,argv) int argc; char* argv[]; #else # define KWSYS_PLATFORM_TEST_C_MAIN() \ main(void) # define KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) \ main(int argc, char* argv[]) #endif /*--------------------------------------------------------------------------*/ #ifdef TEST_KWSYS_C_HAS_PTRDIFF_T #include <stddef.h> int f(ptrdiff_t n) { return n > 0; } int KWSYS_PLATFORM_TEST_C_MAIN() { char* p = 0; ptrdiff_t d = p - p; (void)d; return f(p - p); } #endif /*--------------------------------------------------------------------------*/ #ifdef TEST_KWSYS_C_HAS_SSIZE_T #include <unistd.h> int f(ssize_t n) { return (int)n; } int KWSYS_PLATFORM_TEST_C_MAIN() { ssize_t n = 0; return f(n); } #endif /*--------------------------------------------------------------------------*/ #ifdef TEST_KWSYS_C_TYPE_MACROS char* info_macros = #if defined(__SIZEOF_SHORT__) "INFO:macro[__SIZEOF_SHORT__]\n" #endif #if defined(__SIZEOF_INT__) "INFO:macro[__SIZEOF_INT__]\n" #endif #if defined(__SIZEOF_LONG__) "INFO:macro[__SIZEOF_LONG__]\n" #endif #if defined(__SIZEOF_LONG_LONG__) "INFO:macro[__SIZEOF_LONG_LONG__]\n" #endif #if defined(__SHORT_MAX__) "INFO:macro[__SHORT_MAX__]\n" #endif #if defined(__INT_MAX__) "INFO:macro[__INT_MAX__]\n" #endif #if defined(__LONG_MAX__) "INFO:macro[__LONG_MAX__]\n" #endif #if defined(__LONG_LONG_MAX__) "INFO:macro[__LONG_LONG_MAX__]\n" #endif ""; int KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) { int require = 0; require += info_macros[argc]; (void)argv; return require; } #endif