violet 57d684b5aa Bug 1413319 - Correctly check a double is within long's limit r=birtles
When close to int64_t's limit, the int64 can't be precisely converted to
double because of rounding error, rounding-up is also allowed. To ensure
a double `d` is within int64's limit, we should check
`d < std::numeric_limits<int64_t>::max()`, instead of `<=`.

Because `std::numeric_limits<int64_t>::max()` might be converted to a larger
double, when they are equal, we can't be sure if `d` is indeed within the actual
int64 limit.

Differential Revision: https://phabricator.services.mozilla.com/D23680

--HG--
extra : moz-landing-system : lando
2019-03-17 23:34:02 +00:00

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