getErr()

std::ostream & syten::getErr

(

bool

b

)

Returns std::cerr if b is true, otherwise a dummy output stream.

Example\n

auto& out = getErr(!bpo_quiet);
out << "Test.\n"; // appears on stderr if bpo_quiet is false

References nout.

Referenced by syten::MPS::TEBD::doTEBD_serial(), and syten::MPS::TEBD::getTEvolOps().

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