Why do I get different result on Xcode (C Language)

Question

long number = 100;
printf("the sizeof: %d", sizeof(number));

In Visual Studio, I get the result 4. In Xcode, whereas I get the result 8.

Same code, different result. Could you tell me why I get this result?

Also https://stackoverflow.com/questions/18901080/why-is-the-sizeofint-sizeoflong?r=SearchResults — matt, Mar 18 '19 at 06:00

score 1 · Accepted Answer · answered Mar 18 '19 at 05:54

1

See here: long is guaranteed by the standard to be "at least 32 bits", and depending on the data model may be bigger.

If you want "exactly 32 bits", try if int32_t is supported.

answered Mar 18 '19 at 05:54

Amadan

1 Answers1