+header #include <vnl/vnl_complex_traits.h>
+header VCL_DEFINE_SPECIALIZATION struct vnl_complex_traits< bool >
+header {
+header enum { isreal = true };
+header static bool conjugate( bool x ) { return( x ); }
+header static std::complex< bool > complexify( bool x ) { return( std::complex< bool >( x, false ) ); }
+header };