.

bigfile/tests/test_virtmem.c

@@ -227,14 +227,12 @@ int M(VMA *vma, pgoff_t idx) {  return bitmap_test_bit(vma->page_ismappedv, idx)
 /* _pagev_str returns string representation for vector of pages.
  * the memory has to be freed by user. */
 char *_pagev_str(Page **pagev, int pagec) {
-        char *vstr;
-        size_t _;
+        char *vstr; size_t _;
         FILE *w = open_memstream(&vstr, &_);
 
-        fprintf(w, "[");
         for (int i=0; i<pagec; i++)
-            fprintf(w, "%sp%ld", (i > 0 ? ", " : ""), pagev[i]->f_pgoffset);
-        fprintf(w, "]");
+            fprintf(w, "%sp%ld%s", (i == 0 ? "[" : ", "),
+                    pagev[i]->f_pgoffset, (i == pagec - 1 ? "]" : ""));
         fclose(w);
         return vstr;
 }