Available wrappers

The batch and batch_bool generic template classes are not implemented by default, only full specializations of these templates are available depending on the instruction set macros defined according to the instruction sets provided by the compiler.

XTL complex support

If the preprocessor token XSIMD_ENABLE_XTL_COMPLEX is defined, xsimd provides batches for xtl::xcomplex, similar to those for std::complex. This requires xtl to be installed.