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-rw-r--r--libcpp/include/cpplib.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index c25bcf2..2db1e9c 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -526,6 +526,9 @@ struct cpp_options
/* Nonzero for C++23 delimited escape sequences. */
unsigned char delimited_escape_seqs;
+ /* Nonzero for 'true' and 'false' in #if expressions. */
+ unsigned char true_false;
+
/* Holds the name of the target (execution) character set. */
const char *narrow_charset;