```
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
22515 vaio 20 0 60348 48712 2240 S 0.0 0.6 0:01.11 ncdu /
-22574 vaio 20 0 17588 4320 2584 S 0.3 0.1 0:00.44 nnn -d /
+22574 vaio 20 0 17588 4320 2584 S 0.0 0.1 0:00.44 nnn -d /
```
nnn vs. mc vs. ranger memory usage while viewing a directory with 11244 files, sorted by size:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
28450 vaio 20 0 93848 51548 7724 S 0.0 0.6 0:00.64 /usr/bin/python -O /usr/bin/ranger
27265 vaio 20 0 67188 13620 6908 S 0.0 0.2 0:00.16 mc
-28360 vaio 20 0 20520 6932 2512 S 0.3 0.1 0:00.20 nnn
+28360 vaio 20 0 20520 6932 2512 S 0.0 0.1 0:00.20 nnn
```
### Installation
* We are only looking for '/' in this program.
*/
static void *
-xmemrchr(const void *s, int c, size_t n)
+xmemrchr(const void *s, unsigned char ch, size_t n)
{
- unsigned char *p;
- unsigned char ch = (unsigned char)c;
+ static unsigned char *p;
if (!s || !n)
return NULL;