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Workaround a bug in MSVC's constexpr handling

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This commit is contained in:
Victor Zverovich 2017-10-19 06:06:13 -07:00
parent b8f85f671f
commit 62616b88a6
1 changed files with 5 additions and 1 deletions
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6
fmt/format.h
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@ -3024,7 +3024,11 @@ constexpr unsigned parse_nonnegative_int(Iterator &it) {
assert('0' <= *it && *it <= '9'); assert('0' <= *it && *it <= '9');
unsigned value = 0; unsigned value = 0;
do { do {
unsigned new_value = value * 10 + (*it++ - '0'); unsigned new_value = value * 10 + (*it - '0');
// Workaround for MSVC "setup_exception stack overflow" error:
auto next = it;
++next;
it = next;
// Check if value wrapped around. // Check if value wrapped around.
if (new_value < value) { if (new_value < value) {
value = (std::numeric_limits<unsigned>::max)(); value = (std::numeric_limits<unsigned>::max)();