libc: add memrchr
This function scans a string backwards from the end for the first
instance of a character.

Change-Id: I46b21573ed25a0ff222eac340e1e1fb93b040763
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
1 parent 87b582e commit ebff1072681c5ed09bb70d9c4f617476822db757
@Ambroise Vincent Ambroise Vincent authored on 19 Jun 2019
Olivier Deprez committed on 11 Dec 2019
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include/lib/libc/string.h
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lib/libc/libc.mk
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lib/libc/memrchr.c 0 → 100644