diff options
Diffstat (limited to 'tex/context/base/mkiv/l-number.lua')
| -rw-r--r-- | tex/context/base/mkiv/l-number.lua | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/tex/context/base/mkiv/l-number.lua b/tex/context/base/mkiv/l-number.lua index a83e8f8f9..9fd2f82f7 100644 --- a/tex/context/base/mkiv/l-number.lua +++ b/tex/context/base/mkiv/l-number.lua @@ -81,13 +81,14 @@ if bit32 then "0", "0", "0", "0", "0", "0", "0", "0", } - function number.tobitstring(b,m) - -- if really needed we can speed this one up - -- because small numbers need less extraction - local n = 32 - for i=0,31 do + function number.tobitstring(b,m,w) + if not w then + w = 32 + end + local n = w + for i=0,w-1 do local v = bextract(b,i) - local k = 32 - i + local k = w - i if v == 1 then n = k t[k] = "1" @@ -95,12 +96,14 @@ if bit32 then t[k] = "0" end end - if m then + if w then + return concat(t,"",1,w) + elseif m then m = 33 - m * 8 if m < 1 then m = 1 end - return concat(t,"",m) + return concat(t,"",1,m) elseif n < 8 then return concat(t) elseif n < 16 then @@ -232,3 +235,7 @@ function number.decimaltobyte(d) return b end end + +function number.idiv(i,d) + return floor(i/d) -- i//d in 5.3 +end |