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-rw-r--r--src/vppinfra/format.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/vppinfra/format.h b/src/vppinfra/format.h
index bc0d6d15fd5..bec1b6b410d 100644
--- a/src/vppinfra/format.h
+++ b/src/vppinfra/format.h
@@ -234,7 +234,7 @@ typedef uword (unformat_function_t) (unformat_input_t * input,
/* External functions. */
/* General unformatting function with programmable input stream. */
-uword unformat (unformat_input_t * i, char *fmt, ...);
+uword unformat (unformat_input_t * i, const char *fmt, ...);
/* Call user defined parse function.
unformat_user (i, f, ...) is equivalent to unformat (i, "%U", f, ...) */
@@ -242,7 +242,7 @@ uword unformat_user (unformat_input_t * input, unformat_function_t * func,
...);
/* Alternate version which allows for extensions. */
-uword va_unformat (unformat_input_t * i, char *fmt, va_list * args);
+uword va_unformat (unformat_input_t * i, const char *fmt, va_list * args);
/* Setup for unformat of Unix style command line. */
void unformat_init_command_line (unformat_input_t * input, char *argv[]);