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Code Issues Releases Wiki Activity

Fix UB when sorting empty vecs

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This commit is contained in:
Jesse Ruderman
2021-07-11 20:54:25 -07:00
parent 08cbe8e4e0
commit 123994bdc2
6 changed files with 7 additions and 7 deletions
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game.cpp
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@@ -44,7 +44,7 @@ EX int hrand(int i) {
#if HDR
template<class T, class... U> T pick(T x, U... u) { std::initializer_list<T> i = {x,u...}; return *(i.begin() + hrand(1+sizeof...(u))); }
template<class T> void hrandom_shuffle(T* x, int n) { for(int k=1; k<n; k++) swap(x[k], x[hrand(k+1)]); }
template<class T> void hrandom_shuffle(T& container) { hrandom_shuffle(&container[0], isize(container)); }
template<class T> void hrandom_shuffle(T& container) { hrandom_shuffle(container.data(), isize(container)); }
template<class U> auto hrand_elt(U& container) -> decltype(container[0]) { return container[hrand(isize(container))]; }
template<class T, class U> T hrand_elt(U& container, T default_value) {
if(container.empty()) return default_value;