• Dave P. (3/3) Dec 06 2021 I’m porting some C code which uses the gcc intrinsics to do a
• Ola Fosheim =?UTF-8?B?R3LDuHN0YWQ=?= (4/7) Dec 06 2021 There is:
• Dave P. (4/11) Dec 06 2021 That seems to fit the bill.

Dave P. <dave287091 gmail.com> writes:

I’m porting some C code which uses the gcc intrinsics to do a 
multiply/add with overflow checking. See 
[here](https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html) for
reference. Is there a D equivalent?

Ola Fosheim =?UTF-8?B?R3LDuHN0YWQ=?= <ola.fosheim.grostad gmail.com> writes:

On Monday, 6 December 2021 at 17:46:35 UTC, Dave P. wrote:
 I’m porting some C code which uses the gcc intrinsics to do a 
 multiply/add with overflow checking. See 
 [here](https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html) for
reference. Is there a D equivalent?

There is:

https://dlang.org/phobos/core_checkedint.html

I have never used it, so I don't know how well it performs.

Dave P. <dave287091 gmail.com> writes:

On Monday, 6 December 2021 at 18:38:37 UTC, Ola Fosheim Grøstad 
wrote:
 On Monday, 6 December 2021 at 17:46:35 UTC, Dave P. wrote:
 I’m porting some C code which uses the gcc intrinsics to do a 
 multiply/add with overflow checking. See 
 [here](https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html) for
reference. Is there a D equivalent?

 There is:

 https://dlang.org/phobos/core_checkedint.html

 I have never used it, so I don't know how well it performs.

That seems to fit the bill.

Thanks!