BOOST_SCOPE_EXIT_CONFIG_USE_LAMBDAS — Force to use C++11 lambda functions to implement scope exits.
// In header: <boost/scope_exit.hpp> BOOST_SCOPE_EXIT_CONFIG_USE_LAMBDAS
If programmers define this configuration macro on a C++11 compiler for which the Boost.Config macro
BOOST_NO_CXX11_LAMBDAS is not defined, the
BOOST_SCOPE_EXIT_TPL macros will use C++11 lambda functions to declare scope exits. By default this macro is not defined.
Warning: When scope exits are implemented using lambda functions, the syntax of the capture list follows the exact same syntax of C++11 lambda captures which is in general different from the legacy capture syntax of this library. For example, C++11 lambdas require to capture data members by capturing the object
this while this library always allowed to capture data members directly. Therefore, when this configuration macro is defined,
BOOST_SCOPE_EXIT_TPL are no longer backward compatible (and this is why this macro is not defined by default).
Note: This configuration macro does not control the definition of
BOOST_SCOPE_EXIT_ALL which is always and automatically defined on compilers that support C++11 lambda functions.