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Issue #472: tonumber does not handle E notation correctly #473

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Issue #472: tonumber does not handle E notation correctly #473

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2 changes: 2 additions & 0 deletions _lua5.1-tests/math.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,8 @@ assert(tonumber'+ 0.01' == nil and tonumber'+.e1' == nil and
tonumber'.' == nil)
assert(tonumber('-12') == -10-2)
assert(tonumber('-1.2e2') == - - -120)
assert(tonumber('2e2') == 200)
assert(tonumber('2e2', 15) == 662)
assert(f(tonumber('1 a')) == nil)
assert(f(tonumber('e1')) == nil)
assert(f(tonumber('e 1')) == nil)
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2 changes: 1 addition & 1 deletion baselib.go
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Original file line number Diff line number Diff line change
Expand Up @@ -410,7 +410,7 @@ func baseToNumber(L *LState) int {
L.Push(lv)
case LString:
str := strings.Trim(string(lv), " \n\t")
if strings.Index(str, ".") > -1 {
if base == 10 && strings.ContainsAny(str, ".eE") {
if v, err := strconv.ParseFloat(str, LNumberBit); err != nil {
L.Push(LNil)
} else {
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