blob: ae940069a272211871dbe5c3a2d52a62cab9746c
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Utility routines. |
4 | * |
5 | * Copyright (C) 2015 Denys Vlasenko |
6 | * |
7 | * Licensed under GPLv2, see file LICENSE in this source tree. |
8 | */ |
9 | //kbuild:lib-y += auto_string.o |
10 | |
11 | #include "libbb.h" |
12 | |
13 | char* FAST_FUNC auto_string(char *str) |
14 | { |
15 | static char *saved[4]; |
16 | static uint8_t cur_saved; /* = 0 */ |
17 | |
18 | free(saved[cur_saved]); |
19 | saved[cur_saved] = str; |
20 | cur_saved = (cur_saved + 1) & (ARRAY_SIZE(saved)-1); |
21 | |
22 | return str; |
23 | } |
24 |