To make large unsigned 16bit value, temporal bit shift like (1 << 16) can induce an overflow.

Change to make 32bit value by bitshifting and cast to 16bit in later.
7 years ago · c122d3172c
parent 2d4f881acd
commit c122d3172c
1 changed files with 1 additions and 1 deletions
--- a/src/pfr/pfrload.c
+++ b/src/pfr/pfrload.c
@ -305,7 +305,7 @@
    /* - we need at least 18 bytes for a log font record */
    /* - the overall size is at least 95 bytes plus the  */
    /*   log header and log font records                 */
-    if ( count > ( ( 1 << 16 ) - 2 ) / 5                ||
+    if ( count > (FT_UInt)(( 1L << 16 ) - 2 ) / 5       ||
         2 + count * 5 >= stream->size - section_offset ||
         95 + count * ( 5 + 18 ) >= stream->size        )
    {