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-rw-r--r--build/token6
1 files changed, 6 insertions, 0 deletions
diff --git a/build/token b/build/token
index f7e45dc..7b0223b 100644
--- a/build/token
+++ b/build/token
@@ -6,6 +6,7 @@
#define BUILD_TOKEN
#include <string>
+#include <iosfwd>
#include <cstddef> // size_t
#include <cstdint> // uint64_t
#include <cassert>
@@ -61,6 +62,11 @@ namespace build
std::uint64_t l_;
std::uint64_t c_;
};
+
+ // Output the token value in a format suitable for diagnostics.
+ //
+ std::ostream&
+ operator<< (std::ostream&, const token&);
}
#endif // BUILD_TOKEN