diff options
Diffstat (limited to 'lib/pure/parseutils.nim')
| -rwxr-xr-x | lib/pure/parseutils.nim | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/pure/parseutils.nim b/lib/pure/parseutils.nim index f4dbcf7b8..fd9e880c6 100755 --- a/lib/pure/parseutils.nim +++ b/lib/pure/parseutils.nim @@ -196,7 +196,11 @@ proc parseBiggestInt*(s: string, number: var biggestInt, start = 0): int {. ## parses an integer starting at `start` and stores the value into `number`. ## Result is the number of processed chars or 0 if there is no integer. ## `EOverflow` is raised if an overflow occurs. - result = rawParseInt(s, number, start) + var res: biggestInt = number + # use 'res' for exception safety (don't write to 'number' in case of an + # overflow exception: + result = rawParseInt(s, res, start) + number = res proc parseInt*(s: string, number: var int, start = 0): int {. rtl, extern: "npuParseInt", noSideEffect.} = |