Annex C (informative) Compatibility [diff]

C.6 C standard library [diff.library]

C.6.3 Modifications to definitions [diff.mods.to.definitions]

C.6.3.6 Header <stdbool.h> [diff.header.stdbool.h]

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The tokens bool, true, and false are keywords in C++ ([lex.key]), and are not introduced as macros by <stdbool.h>.