acassis commented on issue #898:
URL:
https://github.com/apache/incubator-nuttx-apps/issues/898#issuecomment-1260148661
@ryancb4 I think you missing basic concepts of the C language, when you use
out_string[1] to are referencing to value at position 1, but a pointer to the
position 1. This way, only write(outfd, out_string, 22); is correct.
You can try it in a Linux machine to see the issue:
```
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#define ARRAYSIZE 22
static char out_string[] = {0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
0x49,
0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
0x52,
0x53, 0x54, 0x55, 0x56};
int main(void)
{
int fd;
int ret;
fd = open("/tmp/test.txt", O_RDWR | O_CREAT);
if (fd < 0)
{
int error = errno;
printf("Error %d opening /tmp/test.txt\n", error);
return -1;
}
ret = write(fd, out_string, ARRAYSIZE);
if (ret < ARRAYSIZE)
{
printf("Error writting array to the file\n");
goto close_exit;
}
printf("Data written to the file\n");
close_exit:
close(fd);
return 0;
}
```
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