"How many bytes does a float have?" is a bad question to ask. Languages may implement floats differently. If someone asks "how many bytes does an ieee 754 doubl

"How many bytes does a float have?" is a bad question to ask. Languages may implement floats differently. If someone asks "how many bytes does an ieee 754 double-precision floating-point have?" then sure, answer 8 bytes. But "how many bytes does a float have?" is precisely a question that should be further defined.