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#pragma inline declares a function to be expanded inline.

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#pragma noinline declares a function whose inline expansion is to be stopped when the -Oinline_level option is used.

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If both #pragma inline and #pragma noinline are specified for the same function within a single translation unit, an error will occur.

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The #pragma inline directive should be written before the definition of the target function within the translation unit that includes the function definition.

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#pragma inline has the same function as keyword __inline. For details of inline expansion, see "Specifying inline function (__inline)".

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#pragma inline and #pragma noinline are declared before the target functions.