RE: [PATCH v3] Many pages: Document fixed-width types with ISO C naming
From: David Laight <hidden>
Date: 2022-08-25 15:04:05
Also in:
bpf, linux-api, linux-man, lkml, ltp
From: David Laight <hidden>
Date: 2022-08-25 15:04:05
Also in:
bpf, linux-api, linux-man, lkml, ltp
From: Joseph Myers
Sent: 25 August 2022 15:39 On Thu, 25 Aug 2022, Linus Torvalds wrote:quoted
That's a small detail that yes, we've tried to avoid the absolute humongous mess that the C standard library has with their horrendous 'PRId*' mess, but honestly, it's just a tiny detail.I've not yet implemented it for glibc or for GCC format checking, but C23 adds 'wN' format length modifiers so you will be able to e.g. use "%w64d" with printf to print an int64_t and won't need those PRI macros any more.
Is that meant to work regardless of whether the type is int, long or long long provided the size is correct? Or does it require the compiler know which type inttypes.h uses for uint32_t and uint64_t? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)