📄 ac_cxx_have_std.m4
字号:
dnl Available from the GNU Autoconf Macro Archive at:dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_std.htmldnlAC_DEFUN([AC_CXX_HAVE_STD],[AC_CACHE_CHECK(whether the compiler supports ISO C++ standard library,ac_cv_cxx_have_std,[AC_REQUIRE([AC_CXX_NAMESPACES]) AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include <iostream>#include <map>#include <iomanip>#include <cmath>#ifdef HAVE_NAMESPACESusing namespace std;#endif],[return 0;], ac_cv_cxx_have_std=yes, ac_cv_cxx_have_std=no) AC_LANG_RESTORE])if test "$ac_cv_cxx_have_std" = yes; then AC_DEFINE(HAVE_STD,,[define if the compiler supports ISO C++ standard library])fi])
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -