Correct use of <ctype.h> functions.

4 files changed, 19 insertions, 10 deletions

diff --git a/intl/ChangeLog b/intl/ChangeLog
index b70893b..cbe031f 100644
--- a/intl/ChangeLog
+++ b/intl/ChangeLog
@@ -1,3 +1,12 @@
+2001-07-28  Bruno Haible  <haible@clisp.cons.org>
+
+	* l10nflist.c (_nl_normalize_codeset): Cast isalnum, isalpha, isdigit,
+	tolower argument to 'unsigned char'.
+	* loadmsgcat.c (_nl_load_domain): Cast isspace argument to
+	'unsigned char'.
+	* localealias.c (read_alias_file): Cast isspace argument to
+	'unsigned char'.
+
 2001-07-23  Bruno Haible  <haible@clisp.cons.org>
 
 	* gettext.h: Assume <limits.h> exists.
diff --git a/intl/l10nflist.c b/intl/l10nflist.c
index 557253e..291a742 100644
--- a/intl/l10nflist.c
+++ b/intl/l10nflist.c
@@ -355,11 +355,11 @@ _nl_normalize_codeset (codeset, name_len)
   size_t cnt;
 
   for (cnt = 0; cnt < name_len; ++cnt)
-    if (isalnum (codeset[cnt]))
+    if (isalnum ((unsigned char) codeset[cnt]))
       {
 	++len;
 
-	if (isalpha (codeset[cnt]))
+	if (isalpha ((unsigned char) codeset[cnt]))
 	  only_digit = 0;
       }
 
@@ -373,9 +373,9 @@ _nl_normalize_codeset (codeset, name_len)
 	wp = retval;
 
       for (cnt = 0; cnt < name_len; ++cnt)
-	if (isalpha (codeset[cnt]))
-	  *wp++ = tolower (codeset[cnt]);
-	else if (isdigit (codeset[cnt]))
+	if (isalpha ((unsigned char) codeset[cnt]))
+	  *wp++ = tolower ((unsigned char) codeset[cnt]);
+	else if (isdigit ((unsigned char) codeset[cnt]))
 	  *wp++ = codeset[cnt];
 
       *wp = '\0';
diff --git a/intl/loadmsgcat.c b/intl/loadmsgcat.c
index d589243..fd73bd9 100644
--- a/intl/loadmsgcat.c
+++ b/intl/loadmsgcat.c
@@ -507,7 +507,7 @@ _nl_load_domain (domain_file, domainbinding)
 	  struct parse_args args;
 
 	  nplurals += 9;
-	  while (*nplurals != '\0' && isspace (*nplurals))
+	  while (*nplurals != '\0' && isspace ((unsigned char) *nplurals))
 	    ++nplurals;
 #if defined HAVE_STRTOUL || defined _LIBC
 	  n = strtoul (nplurals, &endp, 10);
diff --git a/intl/localealias.c b/intl/localealias.c
index 76f19a9..76d99fc 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -243,21 +243,21 @@ read_alias_file (fname, fname_len)
 
       cp = buf;
       /* Ignore leading white space.  */
-      while (isspace (cp[0]))
+      while (isspace ((unsigned char) cp[0]))
 	++cp;
 
       /* A leading '#' signals a comment line.  */
       if (cp[0] != '\0' && cp[0] != '#')
 	{
 	  alias = cp++;
-	  while (cp[0] != '\0' && !isspace (cp[0]))
+	  while (cp[0] != '\0' && !isspace ((unsigned char) cp[0]))
 	    ++cp;
 	  /* Terminate alias name.  */
 	  if (cp[0] != '\0')
 	    *cp++ = '\0';
 
 	  /* Now look for the beginning of the value.  */
-	  while (isspace (cp[0]))
+	  while (isspace ((unsigned char) cp[0]))
 	    ++cp;
 
 	  if (cp[0] != '\0')
@@ -266,7 +266,7 @@ read_alias_file (fname, fname_len)
 	      size_t value_len;
 
 	      value = cp++;
-	      while (cp[0] != '\0' && !isspace (cp[0]))
+	      while (cp[0] != '\0' && !isspace ((unsigned char) cp[0]))
 		++cp;
 	      /* Terminate value.  */
 	      if (cp[0] == '\n')