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string2Int(): Return std::optional

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This commit is contained in:
Eelco Dolstra 2021-01-08 12:22:21 +01:00
parent 29a445840a
commit 6548b89cc4
17 changed files with 82 additions and 69 deletions
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4
src/libutil/config.cc
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@ -230,7 +230,9 @@ template<typename T>
void BaseSetting<T>::set(const std::string & str, bool append)
{
static_assert(std::is_integral<T>::value, "Integer required.");
if (!string2Int(str, value))
if (auto n = string2Int<T>(str))
value = *n;
else
throw UsageError("setting '%s' has invalid value '%s'", name, str);
}