octave-shane/gnulib-hg: lib/argp-fmtstream.c comparison

argp: avoid undefined behavior * lib/argp-fmtstream.c (weak_alias): Pass correct types to ctype macros. Signed-off-by: Eric Blake <ebb9@byu.net>

comparison

equal deleted inserted replaced

-:3485e4d3bbdb
+:d0742bd1f0f8
 	  char *p, *nextline;
 	  int i;
 	  p = buf + (r + 1 - fs->point_col);
-	  while (p >= buf && !isblank (*p))
+	  while (p >= buf && !isblank ((unsigned char) *p))
 	    --p;
 	  nextline = p + 1;	/* This will begin the next line.  */
 	  if (nextline > buf)
 	    {
 	      /* Swallow separating blanks.  */
 	      if (p >= buf)
 		do
 		  --p;
-		while (p >= buf && isblank (*p));
+		while (p >= buf && isblank ((unsigned char) *p));
 	      nl = p + 1;	/* The newline will replace the first blank. */
 	    }
 	  else
 	    {
 	      /* A single word that is greater than the maximum line width.
 	      p = buf + (r + 1 - fs->point_col);
 	      /* Find the end of the long word.  */
 	      if (p < nl)
 		do
 		  ++p;
-		while (p < nl && !isblank (*p));
+		while (p < nl && !isblank ((unsigned char) *p));
 	      if (p == nl)
 		{
 		  /* It already ends a line.  No fussing required.  */
 		  fs->point_col = 0;
 		  buf = nl + 1;
 	      /* We will move the newline to replace the first blank.  */
 	      nl = p;
 	      /* Swallow separating blanks.  */
 	      do
 		++p;
-	      while (isblank (*p));
+	      while (isblank ((unsigned char) *p));
 	      /* The next line will start here.  */
 	      nextline = p;
 	    }
 	  /* Note: There are a bunch of tests below for

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