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base repository: lua/lua
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head repository: bsdimp/lua
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  • 1 commit
  • 3 files changed
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Commits on Jan 26, 2023

  1. config: Allow avoiding floating point all together 

    Sometimes it is desirable to avoid float and double altogether. If you
define LUA_AVOID_FLOAT the following will happen:
	1) quotefloat, and calls to it, are omitted since they aren't
	   needed
	2) the 'f' format in str_format is omitted since it isn't needed.
	3) double is removed from the cD alignment structure
	4) float and double are omitted from Ftypes
	5) 'f' and 'd' packing strategies are eliminated from getoption
	6) float and double cases are eliminated from strpack and
	   strunpack.
	7) l_intfitsf is defined to 1 since they always fit.
	8) In luaK_numberK, assume it's OK if there's a hash collision
	   since floats are ints and the extra effort to move the value
	   uses float/double to make the computation.

this avoids all uses of float and double in lua, and allows
LUA_FLOAT_TYPE to be created as, for example, an int64_t.

Sponsored by:		Netflix
    @bsdimp
    bsdimp committed Jan 26, 2023
    48d5ef7