1 // RUN: rm -fR %t
2 // RUN: split-file %s %t
3 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds0.c
4 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds0.c
5 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds1.c
6 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds1.c
7 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds2.c
8 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds2.c
9 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds3.c
10 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds3.c
11 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds4.c
12 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds4.c
13 // RUN: %clang_cc1 -fsyntax-only -verify -Werror=implicit-function-declaration -std=c89 %t/stdargneeds5.c
14 // RUN: %clang_cc1 -fsyntax-only -verify=expected-modules -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Werror=implicit-function-declaration -std=c89 %t/stdargneeds5.c
15
16 // Split the file so that the "implicitly declaring library function" errors get repeated.
17 // Use C89 to verify that __need_ can be used to get types that wouldn't normally be available.
18
19 //--- stdargneeds0.c
f(int p,...)20 static void f(int p, ...) {
21 __gnuc_va_list g; // expected-error{{undeclared identifier '__gnuc_va_list'}} expected-modules-error{{undeclared identifier}}
22 va_list v; // expected-error{{undeclared identifier 'va_list'}} expected-modules-error{{undeclared identifier}}
23 va_start(v, p); // expected-error{{implicitly declaring library function 'va_start'}} expected-note{{include the header <stdarg.h> or explicitly provide a declaration for 'va_start'}} expected-error{{undeclared identifier 'v'}} \
24 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}} expected-modules-error{{undeclared identifier}}
25 int i = va_arg(v, int); // expected-error{{implicit declaration of function 'va_arg'}} expected-error{{expected expression}} expected-error{{use of undeclared identifier 'v'}} \
26 expected-modules-error{{implicit declaration of function}} expected-modules-error{{expected expression}} expected-modules-error{{undeclared identifier}}
27 va_end(v); // expected-error{{implicitly declaring library function 'va_end'}} expected-note{{include the header <stdarg.h> or explicitly provide a declaration for 'va_end'}} expected-error{{undeclared identifier 'v'}} \
28 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}} expected-modules-error{{undeclared identifier}}
29 __va_copy(g, v); // expected-error{{implicit declaration of function '__va_copy'}} expected-error{{use of undeclared identifier 'g'}} expected-error{{use of undeclared identifier 'v'}} \
30 expected-modules-error{{implicit declaration of function}} expected-modules-error{{undeclared identifier}} expected-modules-error{{undeclared identifier}}
31 va_copy(g, v); // expected-error{{implicitly declaring library function 'va_copy'}} expected-note{{include the header <stdarg.h> or explicitly provide a declaration for 'va_copy'}} expected-error{{use of undeclared identifier 'g'}} expected-error{{use of undeclared identifier 'v'}} \
32 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}} expected-modules-error{{undeclared identifier}} expected-modules-error{{undeclared identifier}}
33 }
34
35 //--- stdargneeds1.c
36 #define __need___va_list
37 #include <stdarg.h>
f(int p,...)38 static void f(int p, ...) {
39 __gnuc_va_list g;
40 va_list v; // expected-error{{undeclared identifier}} \
41 expected-modules-error{{'va_list' must be declared before it is used}} expected-modules-note@__stdarg_va_list.h:*{{declaration here is not visible}}
42 va_start(v, p); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} expected-error{{undeclared identifier}} \
43 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
44 int i = va_arg(v, int); // expected-error{{implicit declaration of function}} expected-error{{expected expression}} expected-error{{undeclared identifier}} \
45 expected-modules-error{{implicit declaration of function}} expected-modules-error{{expected expression}}
46 va_end(v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} expected-error{{undeclared identifier}} \
47 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
48 __va_copy(g, v); // expected-error{{implicit declaration of function}} expected-error{{undeclared identifier}} \
49 expected-modules-error{{implicit declaration of function}}
50 va_copy(g, v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} expected-error{{undeclared identifier}} \
51 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
52 }
53
54 //--- stdargneeds2.c
55 #define __need_va_list
56 #include <stdarg.h>
f(int p,...)57 static void f(int p, ...) {
58 __gnuc_va_list g; // expected-error{{undeclared identifier}} \
59 expected-modules-error{{'__gnuc_va_list' must be declared before it is used}} expected-modules-note@__stdarg___gnuc_va_list.h:*{{declaration here is not visible}}
60 va_list v;
61 va_start(v, p); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
62 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
63 int i = va_arg(v, int); // expected-error{{implicit declaration of function}} expected-error{{expected expression}} \
64 expected-modules-error{{implicit declaration of function}} expected-modules-error{{expected expression}}
65 va_end(v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
66 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
67 __va_copy(g, v); // expected-error{{implicit declaration of function}} expected-error{{undeclared identifier}} \
68 expected-modules-error{{implicit declaration of function}}
69 va_copy(g, v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} expected-error{{undeclared identifier}} \
70 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
71 }
72
73 //--- stdargneeds3.c
74 #define __need_va_list
75 #define __need_va_arg
76 #include <stdarg.h>
f(int p,...)77 static void f(int p, ...) {
78 __gnuc_va_list g; // expected-error{{undeclared identifier}} \
79 expected-modules-error{{'__gnuc_va_list' must be declared before it is used}} expected-modules-note@__stdarg___gnuc_va_list.h:*{{declaration here is not visible}}
80 va_list v;
81 va_start(v, p);
82 int i = va_arg(v, int);
83 va_end(v);
84 __va_copy(g, v); // expected-error{{implicit declaration of function}} expected-error{{undeclared identifier}} \
85 expected-modules-error{{implicit declaration of function}}
86 va_copy(g, v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} expected-error{{undeclared identifier}} \
87 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
88 }
89
90 //--- stdargneeds4.c
91 #define __need___va_list
92 #define __need_va_list
93 #define __need___va_copy
94 #include <stdarg.h>
f(int p,...)95 static void f(int p, ...) {
96 __gnuc_va_list g;
97 va_list v;
98 va_start(v, p); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
99 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
100 int i = va_arg(v, int); // expected-error{{implicit declaration of function}} expected-error{{expected expression}} \
101 expected-modules-error{{implicit declaration of function}} expected-modules-error{{expected expression}}
102 va_end(v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
103 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
104 __va_copy(g, v);
105 va_copy(g, v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
106 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
107 }
108
109 //--- stdargneeds5.c
110 #define __need___va_list
111 #define __need_va_list
112 #define __need_va_copy
113 #include <stdarg.h>
f(int p,...)114 static void f(int p, ...) {
115 __gnuc_va_list g;
116 va_list v;
117 va_start(v, p); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
118 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
119 int i = va_arg(v, int); // expected-error{{implicit declaration of function}} expected-error{{expected expression}} \
120 expected-modules-error{{implicit declaration of function}} expected-modules-error{{expected expression}}
121 va_end(v); // expected-error{{implicitly declaring library function}} expected-note{{provide a declaration}} \
122 expected-modules-error{{implicitly declaring library function}} expected-modules-note{{provide a declaration}}
123 __va_copy(g, v); // expected-error{{implicit declaration of function}} expected-modules-error{{implicit declaration of function}}
124 va_copy(g, v);
125 }
126