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Allow leading zeros in precision (#1579)

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This commit is contained in:
Victor Zverovich
2020-03-14 11:37:38 -07:00
parent 678341275b
commit ff486a72a7
2 changed files with 6 additions and 5 deletions
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10
include/fmt/format.h
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@@ -1953,10 +1953,6 @@ template <typename Char, typename ErrorHandler>
FMT_CONSTEXPR int parse_nonnegative_int(const Char*& begin, const Char* end,
ErrorHandler&& eh) {
FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', "");
if (*begin == '0') {
++begin;
return 0;
}
unsigned value = 0;
// Convert to unsigned to prevent a warning.
constexpr unsigned max_int = max_value<int>();
@@ -2311,7 +2307,11 @@ FMT_CONSTEXPR const Char* parse_arg_id(const Char* begin, const Char* end,
return begin;
}
if (c >= '0' && c <= '9') {
int index = parse_nonnegative_int(begin, end, handler);
int index = 0;
if (c != '0')
index = parse_nonnegative_int(begin, end, handler);
else
++begin;
if (begin == end || (*begin != '}' && *begin != ':'))
handler.on_error("invalid format string");
else