another C compiler fix

Author: markvanderloo

pkg/DESCRIPTION

@@ -23,7 +23,7 @@ Description: Implements an approximate string matching version of R's native
  vectors representing generic sequences. This package is built for speed and
  runs in parallel by using 'openMP'. An API for C or C++ is exposed as well.
  Reference: MPJ van der Loo (2014) <doi:10.32614/RJ-2014-011>.
-Version: 0.9.9
+Version: 0.9.10
 Depends:
  R (>= 2.15.3)
 URL: https://github.com/markvanderloo/stringdist

pkg/NEWS

@@ -1,3 +1,7 @@
+version 0.9.10
+- Fixed another warning generated by new C compiler that I overlooked.
+ (Thanks to the CRAN team for the head's up)
+
 version 0.9.9
 - Fixed warnings generated by new C compiler. (function prototypes must
  now be defined completely). (Thanks to Kurt Hornik for the head's up.)

pkg/src/dist.h

@@ -16,7 +16,7 @@ double lv_dist(unsigned int *, int, unsigned int *, int, double *, double *);
 double osa_dist(unsigned int *, int, unsigned int *, int, double *, double *);
 double jaro_winkler_dist(unsigned int *, int, unsigned int *, int, double, double, double *, double *);
 qtree *new_qtree(int, int);
-void free_qtree(qtree *);
+void free_qtree(void);
 double qgram_dist(unsigned int *, int, unsigned int *, int, unsigned int, qtree **, int);
 double soundex_dist(unsigned int *, int, unsigned int *, int, unsigned int *);
 double running_cosine_dist(unsigned int *, int, unsigned int *, int, unsigned int, qtree **, double *);

pkg/src/stringdist.c

@@ -110,14 +110,14 @@ void close_stringdist(Stringdist *S){
  free_dictionary(S->dict);
  }
  if (S->distance == qgram || S->distance == cosine || S->distance == jaccard){
- free_qtree(S->tree);
+ free_qtree();
  }
  free(S);
 }
 
 void reset_stringdist(Stringdist *S){
  if (S->distance == running_cosine){
- free_qtree(S->tree);
+ free_qtree();
  S->tree = new_qtree(S->q, 2L);
  }
 }