Method capture_fp_settings

benchmarks/tbb/task_group_context.cpp:442–452

IMPORTANT: It is assumed that this method is not used concurrently!

#if __TBB_FP_CONTEXT
// IMPORTANT: It is assumed that this method is not used concurrently!
void task_group_context::capture_fp_settings () {
    //! TODO: Add assertion that this context does not have children
    // No fences are necessary since this context can be accessed from another thread
    // only after stealing happened (which means necessary fences were used).
    cpu_ctl_env &ctl = *internal::punned_cast<cpu_ctl_env*>(&my_cpu_ctl_env);
    if ( !(my_version_and_traits & fp_settings) ) {
        new ( &ctl ) cpu_ctl_env;
        my_version_and_traits |= fp_settings;
    }
    ctl.get_env();
}

void task_group_context::copy_fp_settings( const task_group_context &src ) {
    __TBB_ASSERT( !(my_version_and_traits & fp_settings), "The context already has FPU settings." );