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bugfix: floating point precision; added strutils.formatFloat

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This commit is contained in:
Araq 2011-01-09 14:52:15 +01:00
commit 064417fc5a
13 changed files with 156 additions and 56 deletions
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16
rod/ccgexprs.nim
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@ -1,7 +1,7 @@
#
#
# The Nimrod Compiler
# (c) Copyright 2010 Andreas Rumpf
# (c) Copyright 2011 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
@ -12,7 +12,8 @@
proc intLiteral(i: biggestInt): PRope =
if (i > low(int32)) and (i <= high(int32)):
result = toRope(i)
elif i == low(int32): # Nimrod has the same bug for the same reasons :-)
elif i == low(int32):
# Nimrod has the same bug for the same reasons :-)
result = toRope("(-2147483647 -1)")
elif i > low(int64):
result = ropef("IL64($1)", [toRope(i)])
@ -76,16 +77,7 @@ proc genLiteral(p: BProc, v: PNode, ty: PType): PRope =
else:
result = makeCString(v.strVal)
of nkFloatLit..nkFloat64Lit:
var f = v.floatVal
if f != f:
result = toRope("NAN")
elif f == 0.0:
result = toRopeF(f)
elif f == 0.5 * f:
if f > 0.0: result = toRope("INF")
else: result = toRope("-INF")
else:
result = toRopeF(f)
result = toRope(v.floatVal.ToStrMaxPrecision)
else:
InternalError(v.info, "genLiteral(" & $v.kind & ')')
result = nil