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learn-build-service-prod merged 7 commits into from
Apr 5, 2023
Merged

Repo sync for protected CLA branch #4494

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19adb46
remove typo
Apr 4, 2023
a238a77
Merge pull request #4863 from TylerMSFT/fix
prmerger-automator[bot] Apr 4, 2023
2bd620a
fix image tag
Apr 5, 2023
354edd3
acrolinx
Apr 5, 2023
864152b
Merge pull request #4864 from TylerMSFT/alt-text2
prmerger-automator[bot] Apr 5, 2023
fd5c0ce
Merge pull request #4865 from MicrosoftDocs/main
huypub Apr 5, 2023
48ea908
Merging changes synced from https://github.com/MicrosoftDocs/cpp-docs…
Apr 5, 2023
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2 changes: 1 addition & 1 deletion docs/atl/reference/compiler-options-macros.md
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Expand Up @@ -5,7 +5,7 @@ ms.date: 02/01/2023
f1_keywords: ["_ATL_ALL_WARNINGS", "_ATL_APARTMENT_THREADED", "_ATL_CSTRING_EXPLICIT_CONSTRUCTORS ", "_ATL_ENABLE_PTM_WARNING", "_ATL_FREE_THREADED", "_ATL_MODULES", "_ATL_MULTI_THREADED", "_ATL_NO_AUTOMATIC_NAMESPACE", "_ATL_NO_COM_SUPPORT", "ATL_NO_VTABLE", "ATL_NOINLINE", "_ATL_SINGLE_THREADED"]
helpviewer_keywords: ["compiler options, macros"]
---
# Compiler Options Macros acrolinx
# Compiler Options Macros

These macros control specific compiler features.

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6 changes: 3 additions & 3 deletions docs/cpp/initializers.md
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Expand Up @@ -180,7 +180,7 @@ Value initialization does the following:

- for classes with at least one public constructor, the default constructor is called

- for non-union classes with no declared constructors, the object is zero-initialized and the default constructor is called
- for nonunion classes with no declared constructors, the object is zero-initialized and the default constructor is called

- for arrays, every element is value-initialized

Expand Down Expand Up @@ -520,9 +520,9 @@ Reference-type variables can be declared without initializers only in the follow
extern int& iVal;
```

When initializing a reference-type variable, the compiler uses the decision graph shown in the following figure to select between creating a reference to an object or creating a temporary object to which the reference points.
When initializing a reference-type variable, the compiler uses the decision graph shown in the following figure to select between creating a reference to an object or creating a temporary object to which the reference points:

::image type="complex" source="../cpp/media/vc38s71.gif" alt-text="Decision graph for initialization of reference types.":::
:::image type="complex" source="../cpp/media/vc38s71.gif" alt-text="Decision graph for initialization of reference types.":::
The decision graph begins with: is the initializer an lvalue of the same type or a type derived from the type of reference? If yes, the reference refers to the object specified in the initializer. If no, the next decision is whether the reference-type variable is a const T reference being initialized and can the initializer be implicitly converted to a T? If yes, the temporary is created and the reference variable becomes a name for that temporary. If no, it's an error.
:::image-end:::
Decision graph for initialization of reference types
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