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cmComputeComponentGraph: use size_t for component indices

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This avoids using casts everywhere when dealing with the sizes.
This commit is contained in:
Ben Boeckel
2023-01-26 13:25:37 -05:00
parent 65c0a64dc5
commit 91a26ce041
7 changed files with 191 additions and 176 deletions
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25
Source/cmComputeComponentGraph.h
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@@ -4,6 +4,7 @@
#include "cmConfigure.h" // IWYU pragma: keep
#include <cstddef>
#include <stack>
#include <vector>
@@ -35,7 +36,7 @@ public:
/** Get the adjacency list of the component graph. */
Graph const& GetComponentGraph() const { return this->ComponentGraph; }
EdgeList const& GetComponentGraphEdges(int c) const
EdgeList const& GetComponentGraphEdges(size_t c) const
{
return this->ComponentGraph[c];
}
@@ -45,15 +46,15 @@ public:
{
return this->Components;
}
NodeList const& GetComponent(int c) const { return this->Components[c]; }
NodeList const& GetComponent(size_t c) const { return this->Components[c]; }
/** Get map from original node index to component index. */
std::vector<int> const& GetComponentMap() const
std::vector<size_t> const& GetComponentMap() const
{
return this->TarjanComponents;
}
static const int INVALID_COMPONENT;
static const size_t INVALID_COMPONENT;
private:
void TransferEdges();
@@ -64,18 +65,18 @@ private:
// Tarjan's algorithm.
struct TarjanEntry
{
int Root;
int VisitIndex;
size_t Root;
size_t VisitIndex;
};
std::vector<int> TarjanVisited;
std::vector<int> TarjanComponents;
std::vector<size_t> TarjanVisited;
std::vector<size_t> TarjanComponents;
std::vector<TarjanEntry> TarjanEntries;
std::vector<NodeList> Components;
std::stack<int> TarjanStack;
int TarjanWalkId;
int TarjanIndex;
std::stack<size_t> TarjanStack;
size_t TarjanWalkId;
size_t TarjanIndex;
void Tarjan();
void TarjanVisit(int i);
void TarjanVisit(size_t i);
// Connected components.
};