font_in_list_permissive: squash -Wsign-conversion warning

The preceding logic guarantees this value will be non-negative.

diff --git a/lib/common/textspan_lut.c b/lib/common/textspan_lut.c
index 9ad9cf6dd7197077c38ddc62c77c75c718fbbf01..77977576fb716f1a2b355dd4e60a5c1fc80392cf 100644 (file)
--- a/lib/common/textspan_lut.c
+++ b/lib/common/textspan_lut.c
@@ -745,7 +745,8 @@ static bool font_in_list_permissive(const char *value, const char *list) {
 
   do {
     const char *next_pipe = strchr(list, '|');
-    size_t next_pipe_or_end_pos = next_pipe ? next_pipe - list : strlen(list);
+    size_t next_pipe_or_end_pos =
+        next_pipe ? (size_t)(next_pipe - list) : strlen(list);
     if (font_name_equal_permissive(value, list, next_pipe_or_end_pos)) {
       return true;
     }