Can the effect of the following C function
static void print_start(char const *name, char const *what)
{
char *buf, *p;
unsigned name_len, what_len, total;
name_len = strlen(name);
what_len = strlen(what);
total = name_len + what_len + 3;
p = buf = alloca(total);
memcpy(p, name, name_len);
p += name_len;
*p++ = ' ';
memcpy(p, what, what_len);
p += what_len;
*p++ = ':';
*p = ' ';
*buf &= ~0x20;
Write(2, buf, total);
}
be considered obvious or should it rather get an explanation?
An ASCII lowercase letter can be turned into the corresponding uppercase
letter by clearing the sixth bit.
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