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fix 'negation of 1 cannot be represented in type unsigned int' error - refs #227

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This commit is contained in:
Dane Springmeyer 2016-04-26 17:15:37 -07:00 committed by Eric Fischer
parent d35ef72a99
commit 3182930f35
1 changed files with 2 additions and 6 deletions
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8
mvt.cc
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@ -79,10 +79,6 @@ int compress(std::string const &input, std::string &output) {
return 0;
}
int dezig(unsigned n) {
return (n >> 1) ^ (-(n & 1));
}
bool mvt_tile::decode(std::string &message) {
layers.clear();
std::string src;
@ -214,8 +210,8 @@ bool mvt_tile::decode(std::string &message) {
if (op == mvt_moveto || op == mvt_lineto) {
for (size_t k = 0; k < count && g + 2 < geoms.size(); k++) {
px += dezig(geoms[g + 1]);
py += dezig(geoms[g + 2]);
px += protozero::decode_zigzag32(geoms[g + 1]);
py += protozero::decode_zigzag32(geoms[g + 2]);
g += 2;
feature.geometry.push_back(mvt_geometry(op, px, py));