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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/c99-complit-2.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/c99-complit-2.c')
-rw-r--r--gcc/testsuite/gcc.dg/c99-complit-2.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/c99-complit-2.c b/gcc/testsuite/gcc.dg/c99-complit-2.c
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+++ b/gcc/testsuite/gcc.dg/c99-complit-2.c
@@ -0,0 +1,68 @@
+/* Test for compound literals: in C99 only. Test for invalid uses. */
+/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
+
+struct s { int a; int b; };
+union u { int c; int d; };
+
+struct si;
+union ui;
+
+void
+foo (int a)
+{
+ /* The type name must not be incomplete (apart from arrays of unknown
+ size), or a function type, or a VLA type. */
+ (void) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "void type" { target *-*-* } 17 } */
+ &(struct si) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "incomplete struct type" { target *-*-* } 19 } */
+ &(union ui) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "incomplete union type" { target *-*-* } 21 } */
+ (void (void)) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "function type" { target *-*-* } 23 } */
+ (int [a]) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init|variable" "VLA type" { target *-*-* } 25 } */
+ /* Initializers must not attempt to initialize outside the object
+ declared. */
+ (int [1]) { [1] = 2 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "value outside array" { target *-*-* } 29 } */
+ (int [1]) { [-1] = 2 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "value outside array" { target *-*-* } 31 } */
+ (int [1]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "value outside array" { target *-*-* } 33 } */
+}
+
+int z;
+
+/* Outside a function, initializers must be constant. */
+struct s *s0 = &(struct s) { 0, z }; /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "non-const" { target *-*-* } 40 } */
+int sz = sizeof((struct s) { 0, z }); /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "non-const" { target *-*-* } 42 } */
+
+/* Compound literals aren't themselves constant expressions. */
+int x = (int) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "non-const" { target *-*-* } 46 } */
+
+/* Nor are they suitable structure or union initializers
+ outside a function. */
+struct s s1 = (struct s) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "struct bad init" { target *-*-* } 51 } */
+union u u1 = (union u) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "union bad init" { target *-*-* } 53 } */
+
+/* They aren't suitable for array initializers, either inside or outside
+ a function. */
+int y[2] = (int [2]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "init" "array bad init" { target *-*-* } 58 } */
+
+void
+bar (void)
+{
+ struct s s2 = (struct s) { 0, 1 };
+ union u u2 = (union u) { 0 };
+ int z[2] = (int [2]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
+ /* { dg-error "init" "array bad init" { target *-*-* } 66 } */
+}