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Diffstat (limited to 'third_party/base/stl_util.h')
| -rw-r--r-- | third_party/base/stl_util.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/third_party/base/stl_util.h b/third_party/base/stl_util.h index 795414b59f..96947f5e53 100644 --- a/third_party/base/stl_util.h +++ b/third_party/base/stl_util.h @@ -44,6 +44,13 @@ ResultType CollectionSize(const Collection& collection) { return pdfium::base::checked_cast<ResultType>(collection.size()); } +// Convenience routine for "int-fected" code, to handle signed indicies. The +// compiler can deduce the type, making this more convenient than the above. +template <typename IndexType, typename Collection> +bool IndexInBounds(const Collection& collection, IndexType index) { + return index >= 0 && index < CollectionSize<IndexType>(collection); +} + // Track the addition of an object to a set, removing it automatically when // the ScopedSetInsertion goes out of scope. template <typename T> |