Function strlen

Tools/AP_Bootloader/support.cpp:431–436

simple variant of std c function to reduce used flash space

//simple variant of std c function to reduce used flash space
size_t strlen(const char *s1)
{
    size_t ret = 0;
    while (*s1++) ret++;
    return ret;
}

//simple variant of std c function to reduce used flash space
void *memset(void *s, int c, size_t n)