llvm-project/clang/test/Sema/implicit-decl-c90.c

40 lines
908 B
C

// RUN: %clang_cc1 %s -std=c90 -verify -fsyntax-only
void t0(int x) {
int (*p)();
if(x > 0)
x = g() + 1;
p = g;
if(x < 0) {
extern void u(int (*)[h()]);
int (*q)() = h;
}
p = h; /* expected-error {{use of undeclared identifier 'h'}} */
}
void t1(int x) {
int (*p)();
switch (x) {
g();
case 0:
x = h() + 1;
break;
case 1:
p = g;
p = h;
break;
}
p = g; /* expected-error {{use of undeclared identifier 'g'}} */
p = h; /* expected-error {{use of undeclared identifier 'h'}} */
}
int t2(int x) {
int y = ({ if (x > 0) x = g() + 1; 2*x; });
int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
return y;
}
int (*p)() = g; /* expected-error {{use of undeclared identifier 'g'}} */
int (*q)() = h; /* expected-error {{use of undeclared identifier 'h'}} */
float g(); /* not expecting conflicting types diagnostics here */