release 0.70.7

git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/tags/0.7@672 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 6 insertions, 6 deletions

diff --git a/src/inp_str.c b/src/inp_str.c
index 7adac05..621679a 100644
--- a/src/inp_str.c
+++ b/src/inp_str.c
@@ -110,14 +110,14 @@ extract_string (FILE *stream)
 
     /* (n-char-sequence) only after a NaN */
     if ((nread != 3
-         || tolower (str[0]) != 'n'
-         || tolower (str[1]) != 'a'
-         || tolower (str[2]) != 'n')
+         || tolower ((unsigned char) (str[0])) != 'n'
+         || tolower ((unsigned char) (str[1])) != 'a'
+         || tolower ((unsigned char) (str[2])) != 'n')
         && (nread != 5
             || str[0] != '@'
-            || tolower (str[1]) != 'n'
-            || tolower (str[2]) != 'a'
-            || tolower (str[3]) != 'n'
+            || tolower ((unsigned char) (str[1])) != 'n'
+            || tolower ((unsigned char) (str[2])) != 'a'
+            || tolower ((unsigned char) (str[3])) != 'n'
             || str[4] != '@')) {
       ungetc (c, stream);
       return str;