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Port fix for array index out of bounds in decimal conversion

Browse Source 
https://github.com/miloyip/dtoa-benchmark/issues/7

commit fe550f38669fe0f488926c1ef0feb6c101f586d6
Author: Eli Fidler <efidler@topologyinc.com>
Date:   Tue May 31 11:51:37 2016 -0400

    avoid array index out-of-bounds

    UBSAN gave "runtime error: index 13 out of bounds for type 'const uint32_t [10]'"
This commit is contained in:
Eric Fischer 2017-11-02 16:33:14 -07:00
parent dc42c7ccc2
commit 41c026796d
3 changed files with 7 additions and 2 deletions
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4
CHANGELOG.md
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@ -1,3 +1,7 @@
## 1.26.4
* Array bounds bug fix in binary to decimal conversion library
## 1.26.3
* Guard against impossible coordinates when decoding tilesets

3
milo/dtoa_milo.h
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@ -284,7 +284,8 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, std::strin
kappa--;
if (p2 < delta) {
*K += kappa;
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * kPow10[-kappa]);
int index = -static_cast<int>(kappa);
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[-static_cast<int>(kappa)] : 0));
return;
}
}

2
version.hpp
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@ -1,6 +1,6 @@
#ifndef VERSION_HPP
#define VERSION_HPP
#define VERSION "tippecanoe v1.26.3\n"
#define VERSION "tippecanoe v1.26.4\n"
#endif