[Bug libc/31749] New: endian.h should define uint16_t, uint32_t, and uint64_t

[Bug libc/31749] New: endian.h should define uint16_t, uint32_t, and uint64_t

[collin.funk1 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31749

            Bug ID: 31749
           Summary: endian.h should define uint16_t, uint32_t, and
                    uint64_t
           Product: glibc
           Version: 2.39
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: collin.funk1 at gmail dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---

Hello,

Not sure if it is too soon to care about POSIX revision 8 since it isn't
official yet.
The next revision will likely require <endian.h> to define uint16_t, uint32_t,
or uint64_t. Optionally, it may make all symbols from <stdint.h> visible [1].

I was writing a Gnulib module using that specification and noticed that glibc
doesn't define those types. My system uses glibc 2.39.

Here is a snippet from the test case I was writing for Gnulib. Feel free to use
it if it is of any help:

$ cat main.c
#define _GNU_SOURCE 1
#include <endian.h>

static_assert (LITTLE_ENDIAN != BIG_ENDIAN);
static_assert (BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == BIG_ENDIAN);

uint16_t t1;
uint32_t t2;
uint64_t t3;

int
main (void)
{
  return 0;
}
$ gcc -std=c23 main.c 
main.c:8:1: error: unknown type name ‘uint16_t’
    8 | uint16_t t1;
      | ^~~~~~~~
main.c:4:1: note: ‘uint16_t’ is defined in header ‘<stdint.h>’; this is
probably fixable by adding ‘#include <stdint.h>’
    3 | #include <endian.h>
  +++ |+#include <stdint.h>
[...]

Thanks!

[1] https://austingroupbugs.net/view.php?id=162

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[Bug libc/31749] endian.h should define uint16_t, uint32_t, and uint64_t

[bruno at clisp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31749

Bruno Haible <bruno at clisp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bruno at clisp dot org

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[Bug libc/31749] endian.h should define uint16_t, uint32_t, and uint64_t

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31749

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-
                 CC|                            |fweimer at redhat dot com

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