maint: replace each "for (;;)" with "while (true)"

Run this command:
  git ls-files | grep '\.[ch]$' \
    | xargs perl -pi -e 's/for \(;;\)/while (true)/g'
...except for randint.c, which does not include stdbool.h.
In that case, use "while (1)".
* gl/lib/randint.c (randint_genmax): Use "while (1)" for infloops.
* src/cat.c (simple_cat, cat): Use "while (true)" for infloops.
* gl/lib/randread.c (readsource, readisaac): Likewise.
* src/copy.c (copy_reg): Likewise.
* src/csplit.c (record_line_starts, process_regexp): Likewise.
* src/cut.c (set_fields): Likewise.
* src/dd.c (iread, parse_symbols): Likewise.
* src/df.c (find_mount_point, main): Likewise.
* src/du.c (main): Likewise.
* src/expand.c (expand): Likewise.
* src/factor.c (factor_using_division, do_stdin): Likewise.
* src/fmt.c (get_space): Likewise.
* src/ls.c (decode_switches): Likewise.
* src/od.c (main): Likewise.
* src/pr.c (main, read_line): Likewise.
* src/shred.c (dopass, genpattern): Likewise.
* src/sort.c (initbuf, fillbuf, getmonth, keycompare): Likewise.
* src/split.c (bytes_split, lines_split): Likewise.
* src/tac.c (tac_seekable): Likewise.
* src/test.c (and, or): Likewise.
* src/tr.c (squeeze_filter, main): Likewise.
* src/tsort.c (search_item): Likewise.
* src/unexpand.c (unexpand): Likewise.
* src/uniq.c (main): Likewise.
* src/yes.c (main): Likewise.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/tr.c b/src/tr.c
index c7510c335..3722b4d84 100644
--- a/src/tr.c
+++ b/src/tr.c
@@ -1489,7 +1489,7 @@ squeeze_filter (char *buf, size_t size, size_t (*reader) (char *, size_t))
   size_t i = 0;
   size_t nr = 0;
 
-  for (;;)
+  while (true)
     {
       size_t begin;
 
@@ -1763,7 +1763,7 @@ main (int argc, char **argv)
     {
       set_initialize (s1, complement, in_delete_set);
 
-      for (;;)
+      while (true)
         {
           size_t nr = read_and_delete (io_buf, sizeof io_buf);
           if (nr == 0)
@@ -1817,7 +1817,7 @@ main (int argc, char **argv)
             xlate[i] = i;
           s1->state = BEGIN_STATE;
           s2->state = BEGIN_STATE;
-          for (;;)
+          while (true)
             {
               /* When the previous pair identified case-converting classes,
                  advance S1 and S2 so that each points to the following
@@ -1877,7 +1877,7 @@ main (int argc, char **argv)
         }
       else
         {
-          for (;;)
+          while (true)
             {
               size_t bytes_read = read_and_xlate (io_buf, sizeof io_buf);
               if (bytes_read == 0)