llvm-project/clang/test/Parser/statements.c
Aaron Ballman 25098736c1 Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the fifth batch of tests being updated (there are a significant
number of other tests left to be updated).

Note, the behavior of -ast-print is broken. It prints functions with a
prototype (void) as if they have no prototype () in C. Some tests need
to disable strict prototype checking when recompiling the results of an
-ast-print invocation.
2022-02-09 09:11:49 -05:00

80 lines
1.7 KiB
C

// RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unreachable-code
void test1(void) {
{ ; { ;;}} ;;
}
void test2(void) {
if (0) { if (1) {} } else { }
do { } while (0);
while (0) while(0) do ; while(0);
for ((void)0;0;(void)0)
for (;;)
for ((void)9;0;(void)2)
;
for (int X = 0; 0; (void)0);
}
void test3(void) {
switch (0) {
case 4:
if (0) {
case 6: ;
}
default:
;
}
}
void test4(void) {
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
int X; // declaration in a block.
foo: if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
}
typedef int t;
void test5(void) {
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
t x = 0;
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
}
void test6(void) {
do
. // expected-error {{expected expression}}
while (0);
}
int test7(void) {
return 4 // expected-error {{expected ';' after return statement}}
}
void test8(void) {
// Should not skip '}' and produce a "expected '}'" error.
undecl // expected-error {{use of undeclared identifier 'undecl'}}
}
int test9(void) {
int T[] = {1, 2, };
int X;
X = 0, // expected-error {{expected ';' after expression}}
{
}
X = 0, // expected-error {{expected ';' after expression}}
if (0)
;
return 4, // expected-error {{expected ';' after return statement}}
}