MPFR_DECIMAL_POINT now needs to have type char (because of vasprintf.c).

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@5019 280ebfd0-de03-0410-8827-d642c229c3f4

3 files changed, 6 insertions, 4 deletions

diff --git a/mpfr-impl.h b/mpfr-impl.h
index 71e0588fa..4dcc87f4b 100644
--- a/mpfr-impl.h
+++ b/mpfr-impl.h
@@ -954,9 +954,11 @@ do {                                                                  \
 /* Needs <locale.h> */
 #ifdef HAVE_LOCALE_H
 #include <locale.h>
-#define MPFR_DECIMAL_POINT ((unsigned char) localeconv()->decimal_point[0])
+/* Warning! In case of signed char, the value of MPFR_DECIMAL_POINT may
+   be negative (the ISO C99 does not seem to forbid negative values). */
+#define MPFR_DECIMAL_POINT (localeconv()->decimal_point[0])
 #else
-#define MPFR_DECIMAL_POINT '.'
+#define MPFR_DECIMAL_POINT ((char) '.')
 #endif
 
 
diff --git a/out_str.c b/out_str.c
index 84922309d..44d87755a 100644
--- a/out_str.c
+++ b/out_str.c
@@ -82,7 +82,7 @@ mpfr_out_str (FILE *stream, int base, size_t n_digits, mpfr_srcptr op,
 
   /* outputs mantissa */
   fputc (*s++, stream); e--; /* leading digit */
-  fputc (MPFR_DECIMAL_POINT, stream);
+  fputc ((unsigned char) MPFR_DECIMAL_POINT, stream);
   fputs (s, stream);         /* rest of mantissa */
   (*__gmp_free_func) (s0, l);
 
diff --git a/strtofr.c b/strtofr.c
index 2fbb8a258..ade78a906 100644
--- a/strtofr.c
+++ b/strtofr.c
@@ -226,7 +226,7 @@ parse_string (mpfr_t x, struct parsed_string *pstr,
   const char *prefix_str;
   int decimal_point;
 
-  decimal_point = MPFR_DECIMAL_POINT;
+  decimal_point = (unsigned char) MPFR_DECIMAL_POINT;
 
   /* Init variable */
   pstr->mantissa = NULL;