[cpp.cond] Keywords are not identifiers while preprocessing

Author: AlisdairM

source/preprocessor.tex

@@ -553,11 +553,11 @@
 \grammarterm{has-embed-expression}s, and
 \grammarterm{has-attribute-expression}s
 have been performed,
-all remaining identifiers and keywords,
+all remaining identifiers (including those lexically identical to keywords)
 except for
 \tcode{true}
 and
-\tcode{false},
+\tcode{false}
 are replaced with the \grammarterm{pp-number}
 \tcode{0},
 and then each preprocessing token is converted into a token.