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IndexMap: Define virtual destructor in .cpp file
This fixes compiler warnings from clang: src/ccutil/indexmapbidi.h:102:7: warning: 'IndexMapBiDi' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit [-Wweak-vtables] Signed-off-by: Stefan Weil <sw@weilnetz.de>
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@ -21,6 +21,11 @@
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namespace tesseract {
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// Destructor.
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// It is defined here, so the compiler can create a single vtable
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// instead of weak vtables in every compilation unit.
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IndexMap::~IndexMap() = default;
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// SparseToCompact takes a sparse index to an index in the compact space.
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// Uses a binary search to find the result. For faster speed use
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// IndexMapBiDi, but that takes more memory.
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@ -41,7 +41,7 @@ class IndexMapBiDi;
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// It must be initialized by copying from an IndexMapBiDi or by DeSerialize.
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class IndexMap {
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public:
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virtual ~IndexMap() = default;
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virtual ~IndexMap();
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// SparseToCompact takes a sparse index to an index in the compact space.
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// Uses a binary search to find the result. For faster speed use
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