Accept small differences in floating-point results between C & Go lua implementations #138
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added 3 commits
December 16, 2024 22:17
At least on Debian (and derived distributions), the luac compiler for version 5.2 is explicitly named luac5.2. Otherwise, today, version 5.4 is used instead.
It is known that the Go stdlib math functions may give different results than the C equivalents. See golang/go#25270
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When testing the C lua compiler (binary dump) differences, the test failed
TestParserExhaustivelyinlua-tests/attrib.luawithparser_test.go:134: 153: 1.0000000000000001e+33 != 1e+33.This is caused by different implementations of
math.Powin Go, and Cpowfunctions.I also replaced calls to executable
luacwithluac5.2; at least on recent Debian and Ubuntu versions, lua version 5.2 compiler is named so. (otherwise lua 5.4 would be used today)