ref: ac7c8364ea8f5992e6e56d6f0073869bcf64bb0d
dir: /cmd/cc/intlit.test.c/
/* integer constant type test * reference: C standard 6.4.4.1 * not really compliant lol * ori & Amavect */ #include <u.h> #include <libc.h> void main(void) { print("%ullX ", 0xFF66554433221100); /* uvlong */ print("%llX ", 0x0000000180000000); /* vlong */ print("\n"); print("%X ", 0x7FFFFFFF); /* int */ print("%uX ", 0x80000000); /* uint */ print("%uX ", 0xFFFFFFFF); /* uint */ print("%llX ", 0x100000000); /* vlong */ print("\n"); /* vlong (C standard) * if it parses as uint, it's technically wrong to the standard * even though it works just fine * ideally, - is part of an integer constant, * but that's just not in the standard. */ print("%lld ", -2147483648); print("%d", -0x80000000); /* uint, no warning for int format */ print("\n"); print("%llX ", 0x7FFFFFFFFFFFFFFF); /* vlong */ print("%ullX ", 0x8000000000000000); /* uvlong */ print("%ullX ", 0xFFFFFFFFFFFFFFFF); /* uvlong */ print("%ullX", ~1ULL); /* uvlong */ print("\n"); /* uvlong (C standard) * C standard specifies an extended integer type * uvlong is our extended vlong :) */ print("%lld ", -9223372036854775808); /* no warning for vlong format */ print("%lld", -0x8000000000000000); /* uvlong, no warning for vlong format */ print("\n"); }