Check arguments length before reading (#72) #84

Job	Run time
tests (windows-latest)	1m 46s
tests (macos-latest)	11s
tests (ubuntu-latest)	13s
build (windows, 386)	25s
build (windows, amd64)	18s
build (darwin, amd64)	21s
build (darwin, arm64)	22s
build (linux, 386)	15s
build (linux, amd64)	22s
build (linux, arm, 6)	21s
build (linux, arm64)	16s
build (linux, mips, softfloat)	23s
build (linux, mipsle, softfloat)	19s
build (freebsd, 386)	17s
build (freebsd, amd64)	19s
build (freebsd, arm, 6)	20s
build (freebsd, arm64)	21s
	6m 49s

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