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author | Thomas Preud'homme <robotux@celest.fr> | 2020-08-14 23:04:13 +0100 |
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committer | Thomas Preud'homme <robotux@celest.fr> | 2020-08-14 23:04:13 +0100 |
commit | afd09586d7ead4f146ad7a7a471be34196b3c6bc (patch) | |
tree | 87854be29fb4264b979b700fa45445f58faa4c26 /tests/tests2/94_generic.c | |
parent | e2ccf3981d78dfeb390d22c74625b60310100abb (diff) |
New upstream version 0.9.27+git20200814.62c30a4a
Diffstat (limited to 'tests/tests2/94_generic.c')
-rw-r--r-- | tests/tests2/94_generic.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tests/tests2/94_generic.c b/tests/tests2/94_generic.c index d7fb5fc..6e85c02 100644 --- a/tests/tests2/94_generic.c +++ b/tests/tests2/94_generic.c @@ -20,6 +20,12 @@ int b_f() return 10; } +typedef int (*fptr)(int); +int foo(int i) +{ + return i; +} + typedef int int_type1; #define gen_sw(a) _Generic(a, const char *: 1, default: 8, int: 123); @@ -60,5 +66,50 @@ int main() long long: "long long")); i = _Generic(l, long: 1, int: 2); printf("%d\n", i); + i = _Generic(foo, fptr: 3, int: 4); + printf("%d\n", i); + + (void)_Generic((int(*)[2]){0}, int(*)[2]:0, int(*)[4]:0); //shouldn't match twice + + //should accept ({ }) in the controlling expr of _Generic even in const_wanted contexts + struct { _Bool x_0: _Generic(({0;}),default:1); } my_x; + + _Generic((__typeof((float const)((float const){42}))*){0}, float*: 0); //casts lose top-level qualifiers + int const x = 42; __typeof((__typeof(x))x) *xp = 0; (void)_Generic(xp, int*: 0); //casts lose top-level qualifiers + + //TEST TERNARY: + //Same type + _Generic( 0?(long*)0:(long*)0, long*: (void)0); + //combining of qualifiers + _Generic( 0?(long volatile*)0:(long const*)0, long const volatile*: (void)0); + //nul-ptr constant selects other type + _Generic( 0?(long*)0:0, long*: (void)0); + _Generic( 0?(long*)0:(void*)0, long*: (void)0); + + //void ptrs get chosen preferentially; qualifs still combine + _Generic( 0?(int volatile*)0: (void const*)1, void volatile const*: (void)0); + //like gcc but not clang, don't treat (void* const as the null-ptr constant) + _Generic( 0?(int volatile*)0: (void const*)0, void volatile const*: (void)0); + + //ptrs to incomplete types get completed + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[4])0 : (int (*)[])0, int (*)[4]:+1, int (*)[5]:(void)0); })); + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[])0 : (int (*)[4])0, int (*)[4]:+1, int (*)[5]:(void)0); })); + + { + /* completion shouldn't affect the type of decl */ + char **argv; + _Generic(argv, char**: (void)0); + _Generic(0?(char const*)0:argv[0], char const*: (void)0); + _Generic(argv, char**: (void)0); + } + { + extern int (*ar)[]; + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[4])0 : (int (*)[])0, int (*)[4]:+1, int (*)[5]:(void)0); })); + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[])0 : (int (*)[4])0, int (*)[4]:+1, int (*)[5]:(void)0); })); + (void)(sizeof(struct { int x:_Generic( 0?ar : (int (*)[4])0, int (*)[4]:+1, int (*)[5]:(void)0); })); + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[4])0 : ar, int (*)[4]:+1, int (*)[5]:(void)0); })); + (void)(sizeof(struct { int x:_Generic( 0?(int (*)[5])0 : ar, int (*)[5]:+1, int (*)[4]:(void)0); })); + } + return 0; } |