Refactor: Update integer type usage

This updates the usage of integer types in code I wrote according to our new style guides.

Major changes:
* Use signed instead of unsigned integers in many places.
* C++ containers in blenlib use `int64_t` for size and indices now (instead of `uint`).
* Hash values for C++ containers are 64 bit wide now (instead of 32 bit).

I do hope that I broke no builds, but it is quite likely that some compiler reports
slightly different errors. Please let me know when there are any errors. If the fix
is small, feel free to commit it yourself.
I compiled successfully on linux with gcc and on windows.

1 files changed, 15 insertions, 15 deletions

diff --git a/source/blender/blenlib/BLI_index_mask.hh b/source/blender/blenlib/BLI_index_mask.hh
index 93bbb269d30..ff271faa0c2 100644
--- a/source/blender/blenlib/BLI_index_mask.hh
+++ b/source/blender/blenlib/BLI_index_mask.hh
@@ -46,7 +46,7 @@ namespace blender {
 class IndexMask {
  private:
   /* The underlying reference to sorted integers. */
-  Span<uint> indices_;
+  Span<int64_t> indices_;
 
  public:
   /* Creates an IndexMask that contains no indices. */
@@ -57,10 +57,10 @@ class IndexMask {
    * This constructor asserts that the given integers are in ascending order and that there are no
    * duplicates.
    */
-  IndexMask(Span<uint> indices) : indices_(indices)
+  IndexMask(Span<int64_t> indices) : indices_(indices)
   {
 #ifdef DEBUG
-    for (uint i = 1; i < indices.size(); i++) {
+    for (int64_t i = 1; i < indices.size(); i++) {
       BLI_assert(indices[i - 1] < indices[i]);
     }
 #endif
@@ -84,28 +84,28 @@ class IndexMask {
    * Do this:
    *   do_something_with_an_index_mask({3, 4, 5});
    */
-  IndexMask(const std::initializer_list<uint> &indices) : IndexMask(Span<uint>(indices))
+  IndexMask(const std::initializer_list<int64_t> &indices) : IndexMask(Span<int64_t>(indices))
   {
   }
 
   /**
    * Creates an IndexMask that references the indices [0, n-1].
    */
-  explicit IndexMask(uint n) : IndexMask(IndexRange(n))
+  explicit IndexMask(int64_t n) : IndexMask(IndexRange(n))
   {
   }
 
-  operator Span<uint>() const
+  operator Span<int64_t>() const
   {
     return indices_;
   }
 
-  const uint *begin() const
+  const int64_t *begin() const
   {
     return indices_.begin();
   }
 
-  const uint *end() const
+  const int64_t *end() const
   {
     return indices_.end();
   }
@@ -114,7 +114,7 @@ class IndexMask {
    * Returns the n-th index referenced by this IndexMask. The `index_mask` method returns an
    * IndexRange containing all indices that can be used as parameter here.
    */
-  uint operator[](uint n) const
+  int64_t operator[](int64_t n) const
   {
     return indices_[n];
   }
@@ -123,7 +123,7 @@ class IndexMask {
    * Returns the minimum size an array has to have, if the integers in this IndexMask are going to
    * be used as indices in that array.
    */
-  uint min_array_size() const
+  int64_t min_array_size() const
   {
     if (indices_.size() == 0) {
       return 0;
@@ -133,7 +133,7 @@ class IndexMask {
     }
   }
 
-  Span<uint> indices() const
+  Span<int64_t> indices() const
   {
     return indices_;
   }
@@ -167,12 +167,12 @@ class IndexMask {
   {
     if (this->is_range()) {
       IndexRange range = this->as_range();
-      for (uint i : range) {
+      for (int64_t i : range) {
         callback(i);
       }
     }
     else {
-      for (uint i : indices_) {
+      for (int64_t i : indices_) {
         callback(i);
       }
     }
@@ -193,7 +193,7 @@ class IndexMask {
   /**
    * Returns the largest index that is referenced by this IndexMask.
    */
-  uint last() const
+  int64_t last() const
   {
     return indices_.last();
   }
@@ -201,7 +201,7 @@ class IndexMask {
   /**
    * Returns the number of indices referenced by this IndexMask.
    */
-  uint size() const
+  int64_t size() const
   {
     return indices_.size();
   }