fix a bug

niklasb · niklasb · commit de20ee1dba1e · 2017-04-28T17:43:27.000+02:00
diff --git a/include/sdsl/int_vector_buffer.hpp b/include/sdsl/int_vector_buffer.hpp
@@ -549,7 +549,7 @@ class int_vector_buffer
                     return it += i;
                 }
 
-                iterator& operator-(difference_type i) const
+                iterator operator-(difference_type i) const
                 {
                     iterator it = *this;
                     return it -= i;

Original file line number	Diff line number	Diff line change
`@@ -549,7 +549,7 @@ class int_vector_buffer`
`549`	`549`	`return it += i;`
`550`	`550`	`}`
`551`	`551`
`552`		`- iterator& operator-(difference_type i) const`
	`552`	`+ iterator operator-(difference_type i) const`
`553`	`553`	`{`
`554`	`554`	`iterator it = *this;`
`555`	`555`	`return it -= i;`