Commit 921d2ea19b5eb70293bf110070f04064fd5c9193

Paul Eggert 2021-01-08T11:44:19

dynarray: new module * config/srclist.txt: Mention the new files. * lib/cdefs.h (__attribute_maybe_unused__): New macro, like Gnulib’s _GL_ATTRIBUTE_MAYBE_UNUSED but with glibc naming conventions. * lib/libc-config.h: Use it instead of __glibc_likely. * lib/dynarray.h, modules/dynarray: New files. * lib/malloc/dynarray-skeleton.c, lib/malloc/dynarray.h: * lib/malloc/dynarray_at_failure.c: * lib/malloc/dynarray_emplace_enlarge.c: * lib/malloc/dynarray_finalize.c, lib/malloc/dynarray_resize.c: * lib/malloc/dynarray_resize_clear.c, modules/dynarray: New files, from glibc with the following changes needed for portability to compilers that are not recent-enough GCC. * lib/malloc/dynarray_at_failure.c: Include stdlib.h, for abort. (__libc_dynarray_at_failure) [!_LIBC]: Simply abort. * lib/malloc/dynarray_emplace_enlarge.c: * lib/malloc/dynarray_resize.c: Include intprops.h, and use INT_MULTIPLY_WRAPV instead of __builtin_mul_overflow. * lib/malloc/dynarray.h (__libc_dynarray_at_failure): Use _Noreturn instead of __attribute__ ((noreturn)). * lib/malloc/dynarray_resize_clear.c: Do not include stdlib.h; it’s not needed. (__libc_dynarray_resize_clear): Do not do arithmetic on void *. * lib/malloc/dynarray-skeleton.c (struct DYNARRAY_STRUCT): Do not use anonymous unions, as they are not in C99. All uses changed. Use __nonnull (X) instead of __attribute__ ((nonnull X)), and __attribute_maybe_unused__ instead of __attribute__ ((unused)).