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-rw-r--r--ccan/str/str.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/ccan/str/str.h b/ccan/str/str.h
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+++ b/ccan/str/str.h
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+/* CC0 (Public domain) - see ccan/licenses/CC0 file for details */
+#ifndef CCAN_STR_H
+#define CCAN_STR_H
+/**
+ * stringify - Turn expression into a string literal
+ * @expr: any C expression
+ *
+ * Example:
+ * #define PRINT_COND_IF_FALSE(cond) \
+ * ((cond) || printf("%s is false!", stringify(cond)))
+ */
+#define stringify(expr) stringify_1(expr)
+/* Double-indirection required to stringify expansions */
+#define stringify_1(expr) #expr
+
+#endif /* CCAN_STR_H */