`iterator_type` is missing in public API

closes gh-2576

src/CMakeLists.txt

@@ -169,6 +169,7 @@ set(api_headers
     ${CMAKE_SOURCE_DIR}/src/box/schema.h
     ${CMAKE_SOURCE_DIR}/src/box/box.h
     ${CMAKE_SOURCE_DIR}/src/box/index.h
+    ${CMAKE_SOURCE_DIR}/src/box/iterator_type.h
     ${CMAKE_SOURCE_DIR}/src/box/error.h
     ${CMAKE_SOURCE_DIR}/src/box/lua/call.h
     ${CMAKE_SOURCE_DIR}/src/box/lua/tuple.h

src/box/iterator_type.h

@@ -37,6 +37,8 @@
 extern "C" {
 #endif /* defined(__cplusplus) */
 
+/** \cond public */
+
 /**
  * Controls how to iterate over tuples in an index.
  * Different index types support different iterator types.
@@ -74,6 +76,8 @@ enum iterator_type {
 	iterator_type_MAX
 };
 
+/** \endcond public */
+
 extern const char *iterator_type_strs[];
 
 /**

test/box/function1.c

@@ -49,6 +49,7 @@ args(box_function_ctx_t *ctx, const char *args, const char *args_end)
 int
 multi_inc(box_function_ctx_t *ctx, const char *args, const char *args_end)
 {
+	(void )ITER_ALL;
 	static const char *SPACE_NAME = "test";
 	static const char *INDEX_NAME = "primary";