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13.70.7 memrchr

LSB specification:
https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-memrchr.html

Documentation:

• https://www.gnu.org/software/libc/manual/html_node/Search-Functions.html,
• man memrchr.

Gnulib module: memrchr

Portability problems fixed by Gnulib:

• This function is missing on many non-glibc platforms: macOS 11.1, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 11.4, Cygwin 1.7.x, mingw, MSVC 14.

Portability problems not fixed by Gnulib: