• Jared McKinnan (4/4) Oct 08 Hello there,
• Imperatorn (5/9) Oct 08 You need to specify your platform.
• Jared McKinnan (2/14) Oct 08 I using Windows 10 x64.
• Salih Dincer (14/18) Oct 09 ```int_fast64_t``` is the fastest 64-bit or larger integer type.
• Jared McKinnan (2/16) Oct 09 Thank you. That helps.

Jared McKinnan <jmk email.com> writes:

Hello there,

Just wanted to ask if there's a real difference between e.g. the 
"long" type and "int_fast64_t" in terms of execution times.

Thanks

Imperatorn <johan_forsberg_86 hotmail.com> writes:

On Tuesday, 8 October 2024 at 15:57:24 UTC, Jared McKinnan wrote:
 Hello there,

 Just wanted to ask if there's a real difference between e.g. 
 the "long" type and "int_fast64_t" in terms of execution times.

 Thanks

You need to specify your platform.

In most cases, no, you won't see a difference.
It exists so that if the platform has faster arithmetic for a 
certain size, it can choose that size.

Jared McKinnan <jmk email.com> writes:

On Tuesday, 8 October 2024 at 16:39:26 UTC, Imperatorn wrote:
 On Tuesday, 8 October 2024 at 15:57:24 UTC, Jared McKinnan 
 wrote:
 Hello there,

 Just wanted to ask if there's a real difference between e.g. 
 the "long" type and "int_fast64_t" in terms of execution times.

 Thanks

 You need to specify your platform.

 In most cases, no, you won't see a difference.
 It exists so that if the platform has faster arithmetic for a 
 certain size, it can choose that size.

I using Windows 10 x64.

Salih Dincer <salihdb hotmail.com> writes:

On Tuesday, 8 October 2024 at 15:57:24 UTC, Jared McKinnan wrote:
 Hello there,

 Just wanted to ask if there's a real difference between e.g. 
 the "long" type and "int_fast64_t" in terms of execution times.

 Thanks

```int_fast64_t``` is the fastest 64-bit or larger integer type. 
The type that is at least 64 bits long and works fastest on the 
platform is selected. This type can be selected if performance is 
more important than memory and the processor can run faster on 
certain types.

```long``` is an integer that is strictly 64 bits long. That is, 
this type is permanently 64 bits and provides cross-platform 
portability. If you want strictly 64 bits and care about 
cross-platform consistency, you should use this type.

So you have to choose between consistency and efficiency. When 
you tell the compiler this choice, it implements it if it can 
agree with the processor.

SDB 79

Jared McKinnan <jmk email.com> writes:

On Wednesday, 9 October 2024 at 12:12:22 UTC, Salih Dincer wrote:
 [...]

 ```int_fast64_t``` is the fastest 64-bit or larger integer 
 type. The type that is at least 64 bits long and works fastest 
 on the platform is selected. This type can be selected if 
 performance is more important than memory and the processor can 
 run faster on certain types.

 ```long``` is an integer that is strictly 64 bits long. That 
 is, this type is permanently 64 bits and provides 
 cross-platform portability. If you want strictly 64 bits and 
 care about cross-platform consistency, you should use this type.

 So you have to choose between consistency and efficiency. When 
 you tell the compiler this choice, it implements it if it can 
 agree with the processor.

 SDB 79

Thank you. That helps.