forked from OSchip/llvm-project
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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namespace test1 {
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extern "C" {
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void test1_f() {
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void test1_g(int); // expected-note {{previous declaration is here}}
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}
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}
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}
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int test1_g(int); // expected-error {{functions that differ only in their return type cannot be overloaded}}
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namespace test2 {
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extern "C" {
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void test2_f() {
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extern int test2_x; // expected-note {{previous definition is here}}
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}
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}
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}
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float test2_x; // expected-error {{redefinition of 'test2_x' with a different type: 'float' vs 'int'}}
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namespace test3 {
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extern "C" {
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void test3_f() {
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extern int test3_b; // expected-note {{previous definition is here}}
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}
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}
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extern "C" {
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float test3_b; // expected-error {{redefinition of 'test3_b' with a different type: 'float' vs 'int'}}
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}
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}
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extern "C" {
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void test4_f() {
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extern int test4_b; // expected-note {{previous definition is here}}
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}
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}
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static float test4_b; // expected-error {{redefinition of 'test4_b' with a different type: 'float' vs 'int'}}
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extern "C" {
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void test5_f() {
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extern int test5_b; // expected-note {{previous definition is here}}
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}
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}
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extern "C" {
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static float test5_b; // expected-error {{redefinition of 'test5_b' with a different type: 'float' vs 'int'}}
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}
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extern "C" {
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void f() {
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extern int test6_b;
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}
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}
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namespace foo {
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extern "C" {
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static float test6_b;
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extern float test6_b;
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}
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}
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namespace linkage {
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namespace redecl {
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extern "C" {
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static void linkage_redecl();
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static void linkage_redecl(int);
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void linkage_redecl(); // ok, still not extern "C"
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void linkage_redecl(int); // ok, still not extern "C"
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void linkage_redecl(float); // expected-note {{previous}}
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void linkage_redecl(double); // expected-error {{conflicting types}}
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}
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}
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namespace from_outer {
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void linkage_from_outer_1();
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void linkage_from_outer_2(); // expected-note {{previous}}
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extern "C" {
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void linkage_from_outer_1(int); // expected-note {{previous}}
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void linkage_from_outer_1(); // expected-error {{conflicting types}}
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void linkage_from_outer_2(); // expected-error {{different language linkage}}
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}
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}
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namespace mixed {
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extern "C" {
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void linkage_mixed_1();
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static void linkage_mixed_1(int);
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static void linkage_mixed_2(int);
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void linkage_mixed_2();
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}
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}
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namespace across_scopes {
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namespace X {
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extern "C" void linkage_across_scopes_f() {
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void linkage_across_scopes_g(); // expected-note {{previous}}
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}
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}
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namespace Y {
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extern "C" void linkage_across_scopes_g(int); // expected-error {{conflicting}}
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}
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}
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}
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void lookup_in_global_f();
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namespace lookup_in_global {
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void lookup_in_global_f();
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extern "C" {
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// FIXME: We should reject this.
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void lookup_in_global_f(int);
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}
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}
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