#define __nocast __attribute__((nocast)) typedef unsigned long __nocast ulong_nc_t; extern void use_val(ulong_nc_t); extern void use_ptr(ulong_nc_t *); /* use address */ static void good_use_address(void) { ulong_nc_t t; use_ptr(&t); } static ulong_nc_t *good_ret_address(void) { static ulong_nc_t t; return &t; } static ulong_nc_t good_deref(ulong_nc_t *t) { return *t; } /* assign value */ static ulong_nc_t t; static ulong_nc_t good_assign_self = t; static unsigned long good_assign_sametype = t; /* assign pointer */ static ulong_nc_t *good_ptr = &t; static ulong_nc_t *bad_ptr_to = 1UL; static unsigned long *bad_ptr_from = &t; /* arithmetic operation */ static ulong_nc_t good_arith(ulong_nc_t t, unsigned int n) { return t + n; } /* implicit cast to other types */ static unsigned long good_ret_samecast(ulong_nc_t t) { return t; } static unsigned long long bad_ret_biggercast(ulong_nc_t t) { return t; } static long bad_ret_signcast(ulong_nc_t t) { return t; } static short bad_ret_smallercast(ulong_nc_t t) { return t; } static void assign_val(ulong_nc_t t) { ulong_nc_t good_c = t; unsigned long good_ul = t; unsigned long long bad_ull = t; long bad_l = t; short bad_i = t; } static void assign_via_ptr(ulong_nc_t *t) { ulong_nc_t good_c = *t; unsigned long good_ul = *t; unsigned long long bad_ull = *t; long bad_l = *t; short bad_i = *t; } static void assign_ptr(ulong_nc_t *t) { ulong_nc_t *good_same_type = t; unsigned long *bad_mod = t; unsigned long long __nocast *bad_size = t; short __nocast *bad_i = t; long __nocast *bad_l = t; } /* implicit cast to nocast */ static void implicit_assign_to(void) { ulong_nc_t t; unsigned long ul = 1; unsigned short us = 1; unsigned long long ull = 1; long l = 1; t = ul; /* implicit to nocast from same type: OK? */ t = us; t = ull; t = l; } static void bad_implicit_arg_to(void) { unsigned long ul = 1; unsigned short us = 1; unsigned long long ull = 1; long l = 1; use_val(ul); /* implicit to nocast from same type: OK? */ use_val(us); use_val(ull); use_val(l); } /* implicit cast from nocast */ static unsigned long good_implicit_ret_ul(ulong_nc_t t) { return t; /* implicit to nocast from same type: OK? */ } static unsigned short bad_implicit_ret_us(ulong_nc_t t) { return t; } static unsigned long long bad_implicit_ret_ull(ulong_nc_t t) { return t; } static long bad_implicit_ret_l(ulong_nc_t t) { return t; } /* FIXME: explicit cast: should we complain? */ static ulong_nc_t good_samecast(ulong_nc_t v) { return (ulong_nc_t) v; } static ulong_nc_t bad_tocast(unsigned long v) { return (ulong_nc_t) v; } static unsigned long bad_fromcast(ulong_nc_t v) { return (unsigned long) v; } /* * check-name: nocast.c * * check-error-start nocast.c:34:33: warning: incorrect type in initializer (different base types) nocast.c:34:33: expected unsigned long [nocast] [usertype] *static [toplevel] bad_ptr_to nocast.c:34:33: got unsigned long nocast.c:34:33: warning: implicit cast to nocast type nocast.c:35:39: warning: incorrect type in initializer (different modifiers) nocast.c:35:39: expected unsigned long *static [toplevel] bad_ptr_from nocast.c:35:39: got unsigned long [nocast] * nocast.c:35:39: warning: implicit cast from nocast type nocast.c:50:16: warning: implicit cast from nocast type nocast.c:54:16: warning: implicit cast from nocast type nocast.c:58:16: warning: implicit cast from nocast type nocast.c:65:38: warning: implicit cast from nocast type nocast.c:66:22: warning: implicit cast from nocast type nocast.c:67:23: warning: implicit cast from nocast type nocast.c:74:38: warning: implicit cast from nocast type nocast.c:75:22: warning: implicit cast from nocast type nocast.c:76:23: warning: implicit cast from nocast type nocast.c:82:34: warning: incorrect type in initializer (different modifiers) nocast.c:82:34: expected unsigned long *bad_mod nocast.c:82:34: got unsigned long [nocast] [usertype] *t nocast.c:82:34: warning: implicit cast from nocast type nocast.c:83:49: warning: incorrect type in initializer (different type sizes) nocast.c:83:49: expected unsigned long long [nocast] *bad_size nocast.c:83:49: got unsigned long [nocast] [usertype] *t nocast.c:83:49: warning: implicit cast to/from nocast type nocast.c:84:33: warning: incorrect type in initializer (different type sizes) nocast.c:84:33: expected short [nocast] *bad_i nocast.c:84:33: got unsigned long [nocast] [usertype] *t nocast.c:84:33: warning: implicit cast to/from nocast type nocast.c:85:32: warning: implicit cast to/from nocast type nocast.c:98:13: warning: implicit cast to nocast type nocast.c:99:13: warning: implicit cast to nocast type nocast.c:100:13: warning: implicit cast to nocast type nocast.c:111:17: warning: implicit cast to nocast type nocast.c:112:17: warning: implicit cast to nocast type nocast.c:113:17: warning: implicit cast to nocast type nocast.c:124:16: warning: implicit cast from nocast type nocast.c:129:16: warning: implicit cast from nocast type nocast.c:134:16: warning: implicit cast from nocast type * check-error-end */