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-rw-r--r--gcc/fortran/scanner.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/fortran/scanner.c b/gcc/fortran/scanner.c
index 82f431d..49decfa 100644
--- a/gcc/fortran/scanner.c
+++ b/gcc/fortran/scanner.c
@@ -80,6 +80,7 @@ static struct gfc_file_change
size_t file_changes_cur, file_changes_count;
size_t file_changes_allocated;
+static gfc_char_t *last_error_char;
/* Functions dealing with our wide characters (gfc_char_t) and
sequences of such characters. */
@@ -269,6 +270,7 @@ gfc_scanner_init_1 (void)
continue_line = 0;
end_flag = 0;
+ last_error_char = NULL;
}
@@ -1700,6 +1702,14 @@ gfc_gobble_whitespace (void)
}
while (gfc_is_whitespace (c));
+ if (!ISPRINT(c) && c != '\n' && last_error_char != gfc_current_locus.nextc)
+ {
+ char buf[20];
+ last_error_char = gfc_current_locus.nextc;
+ snprintf (buf, 20, "%2.2X", c);
+ gfc_error_now ("Invalid character 0x%s at %C", buf);
+ }
+
gfc_current_locus = old_loc;
}