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Change __STDC__ documentation #3643

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2 changes: 1 addition & 1 deletion docs/preprocessor/predefined-macros.md
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Expand Up @@ -38,7 +38,7 @@ The compiler supports these predefined macros specified by the ISO C99, C11, C17

- `__LINE__` Defined as the integer line number in the current source file. The value of the `__LINE__` macro can be changed by using a `#line` directive. The integral type of the value of `__LINE__` can vary depending on context. This macro is always defined.

- `__STDC__` Defined as 1 only when compiled as C and if the [`/Za`](../build/reference/za-ze-disable-language-extensions.md) compiler option is specified. Otherwise, undefined.
- `__STDC__` Defined as 1 only when compiled as C and if the [`/Za`](../build/reference/za-ze-disable-language-extensions.md) or [`/std:c11`/`/std:c17`](../build/reference/std-specify-language-standard-version.md) compiler option is specified. Otherwise, undefined.

- `__STDC_HOSTED__` Defined as 1 if the implementation is a *hosted implementation*, one that supports the entire required standard library. Otherwise, defined as 0.

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