[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [ft-devel] those OVERFLOW_* macros and Fontval b69 (Re: Freetype-dev

From: Werner LEMBERG
Subject: Re: [ft-devel] those OVERFLOW_* macros and Fontval b69 (Re: Freetype-devel Digest, Vol 149, Issue 5
Date: Wed, 07 Jun 2017 05:15:26 +0200 (CEST)

>> However, the majority of input data in most formats are deltas, and
>> here you would have to check after every addition, subtraction, or
>> multiplication whether you get something `unreasonable'.
> BTW are you aware of gcc's and clang's built-in functions that perform
> arithmetic with overflow checking?  Maybe they could help.

Thanks, I know these functions.  They would help if I wanted to do
something in case of overflow.  However, I want to do *nothing*, so I
simply use casts.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]