void test() {
if (cond("if1") /*comment*/) do_something("same-line");
if (cond("if2"))
do_something("single-line");
// CHECK-MESSAGES: :[[@LINE-2]]:19: warning: statement should be inside braces
// CHECK-FIXES: if (cond("if2")) {
// CHECK-FIXES: }
if (cond("if3") /*comment*/)
// some comment
do_something("three"
"lines");
// CHECK-MESSAGES: :[[@LINE-4]]:31: warning: statement should be inside braces
// CHECK-FIXES: if (cond("if3") /*comment*/) {
// CHECK-FIXES: }
if (cond("if4") /*comment*/)
// some comment
do_something("many"
"many"
"many"
"many"
"lines");
// CHECK-MESSAGES: :[[@LINE-7]]:31: warning: statement should be inside braces
// CHECK-FIXES: if (cond("if4") /*comment*/) {
// CHECK-FIXES: }
}
int main(int argc,char *argv[])
{
int rank, num_of_processes;
int i;
MPI_Comm comm = MPI_COMM_WORLD;
MPI_Init(&argc,&argv);
MPI_Comm_size( comm, &num_of_processes);
MPI_Comm_rank( comm, &rank);
int localsum = 0;
int globalsum = 0;
int expectedsum = 0;
if(rank == 0) {
printf("Checking mpi_scan(sum)... (if you see no output then you are good)\n");
}
localsum = do_something(rank, 2);
globalsum = 0;
MPI_Scan(&localsum,&globalsum,1,MPI_INT,MPI_SUM,MPI_COMM_WORLD);
expectedsum = 0;
// count upto my rank and verify that that was the return from scan
for(i=0; i<rank+1; i++) {
expectedsum = expectedsum + do_something(i, 2);
}
if (globalsum != expectedsum) {
printf("ERROR: Expected %d got %d [rank:%d]\n", expectedsum, globalsum, rank);
}
MPI_Finalize();
}
int
test_switch (int i, int j)
{
int result = 0; /* count(5) */
switch (i) /* count(5) */
{
case 1:
result = do_something (2); /* count(1) */
break;
case 2:
result = do_something (1024);
break;
case 3:
case 4:
if (j == 2) /* count(3) */
return do_something (4); /* count(1) */
result = do_something (8); /* count(2) */
break;
default:
result = do_something (32); /* count(1) */
switch_m++; /* count(1) */
break;
}
return result; /* count(4) */
}
int
main(int argc, const char* argv[])
{
printf("--> main()\n");
do_something();
hrt_tstamp t0, t1;
hrt_tnull(&t0);
hrt_tnull(&t1);
printf("\nmarking time...\n");
int r;
if ((r = hrt_tnow(&t0)) != 0) {
fprintf(stderr, "error: hrt_now(&t0) returned %d\n", r);
}
hrt_tprint(&t0);
do_something();
printf("\nmarking time...\n");
if ((r = hrt_tnow(&t1)) != 0) {
fprintf(stderr, "error: hrt_now(&t1) returned %d\n", r);
}
hrt_tprint(&t1);
printf("\namount of times:\n");
double rtmicros = hrt_rtmicros(&t1.rtstamp, &t0.rtstamp);
double ctmicros = hrt_ctmicros(&t1.ctstamp, &t0.ctstamp);
printf("real = %.3f us\n", rtmicros);
printf("cpu = %.3f us\n", ctmicros);
printf("\n<-- main()\n");
return 0;
}
int
test_switch (int i, int j)
{
int result = 0;
switch (i) /* branch(80 25) */
/* branch(end) */
{
case 1:
result = do_something (2);
break;
case 2:
result = do_something (1024);
break;
case 3:
case 4:
if (j == 2) /* branch(67) */
/* branch(end) */
return do_something (4);
result = do_something (8);
break;
default:
result = do_something (32);
switch_m++;
break;
}
return result;
}
int
pack_unpack (char *s, char *p)
{
char *send, *pend;
char type;
int integer_size;
send = s + strlen (s);
pend = p + strlen (p);
while (p < pend)
{
type = *p++;
switch (type)
{
case 's':
integer_size = 2;
goto unpack_integer;
case 'l':
integer_size = 4;
goto unpack_integer;
unpack_integer:
switch (integer_size)
{
case 2:
{
union
{
int16_t i;
char a[sizeof (int16_t)];
}
v;
memcpy (v.a, s, sizeof (int16_t));
s += sizeof (int16_t);
do_something (v.i);
}
break;
case 4:
{
union
{
int32_t i;
char a[sizeof (int32_t)];
}
v;
memcpy (v.a, s, sizeof (int32_t));
s += sizeof (int32_t);
do_something (v.i);
}
break;
}
break;
}
}
return (int) *s;
}
int
main()
{
do_something (2);
do_something (3);
do_something (5);
do_something (70);
}
int main () {
std::function<void(int, int)> lamarck = [&](int a, int b){ std::cout << a << b; };
auto func = make_function([](){}); // lambda
auto func2 = make_function(abc); // free function
auto func3 = make_function(fo_abc()); // function object
do_something(func);
do_something(func2);
do_something(func3);
}
int
test_ifelse3 (int i, int j)
{
int result = 1;
if (i > 10 && j > i && j < 20) /* count(11) */
result = do_something (16); /* count(1) */
if (i > 20) /* count(11) */
if (j > i) /* count(5) */
if (j < 30) /* count(2) */
result = do_something (32); /* count(1) */
if (i == 3 || j == 47 || i == j) /* count(11) */
result = do_something (64); /* count(3) */
return result; /* count(11) */
}
int main()
{
do_something(A());
do_something(A(10));
// this will cause error
// do_something(20);
// call explicit conversion
do_something(static_cast<A>(20));
// not recommanded
do_something((A)30);
return 0;
}
void foo(struct obj1 *op) {
TESLA_WITHIN(context,
/*
* TODO: use CHECK-DAG once we switch to LLVM 3.4:
*
* First, we need to look up op->child_of_1->child_of_2:
* CHECK: [[PTR:%[_a-zA-Z0-9\.]+]] = getelementptr inbounds %struct.obj1* %op
* CHECK: [[C:%[_a-zA-Z0-9\.]+]] = load %struct.obj2** [[PTR]]
*
* CHECK: [[PTR:%[_a-zA-Z0-9\.]+]] = getelementptr inbounds %struct.obj2* [[C]]
* CHECK: [[CHILD:%[_a-zA-Z0-9\.]+]] = load %struct.obj1** [[PTR]]
*
* Next, we look up op->child_of_1->value:
* CHECK: [[PTR:%[_a-zA-Z0-9\.]+]] = getelementptr inbounds %struct.obj1* %op
* CHECK: [[C:%[_a-zA-Z0-9\.]+]] = load %struct.obj2** [[PTR]]
*
* CHECK: [[PTR:%[_a-zA-Z0-9\.]+]] = getelementptr inbounds %struct.obj2* [[C]]
* CHECK: [[VALUE:%[_a-zA-Z0-9\.]+]] = load i32* [[PTR]]
*
* CHECK: call void [[INSTR:@.*_tesla_instr.*assert.*]](%struct.obj1* [[CHILD]], [[INT:i[3264]+]] [[VALUE]])
*/
eventually(
do_something(
op->child_of_1->child_of_2,
op->child_of_1->value) == 0
)
);
}
void process_data()
{
std::unique_lock<std::mutex> lk( get_lock() ); /* (1) */
do_something();
std::cout << "owns_lock : " << lk.owns_lock() << std::endl;
}
int
test_ifelse2 (int i)
{
int result = 0;
if (!i) /* count(6) */
result = do_something (1); /* count(1) */
if (i == 1) /* count(6) */
result = do_something (1024);
if (i == 2) /* count(6) */
result = do_something (2); /* count(3) */
if (i == 3) /* count(6) */
return do_something (8); /* count(2) */
if (i == 4) /* count(4) */
return do_something (2048);
return result; /* count(4) */
}
void mainPlustHeaderCallAndReturnPlusMain() {
int i = 0;
i++;
do_something(i);
causeDivByZeroInMain2(i);
i++;
}
main()
{
int s, t;
if ((s = establish(PORTNUM)) < 0)
{ /* plug in the phone */
perror("establish");
exit(1);
}
/* how a concurrent server looks like */
for (;;)
{ /* loop for phone calls */
if ((t= get_connection(s)) < 0)
{ /* get a connection */
perror("accept"); /* bad */
exit(1);
}
switch( fork() )
{ /* try to handle connection */
case -1 : /* bad news. scream and die */
perror("fork");
close(s);
close(t);
exit(1);
case 0 : /* we're the child, do something */
close(s);
do_something(t);
close(t);
exit(0);
default : /* we're the parent so look for */
close(t); /* another connection */
continue;
}
}
} /* end of main */
main(int argc, char* argv[],char ** environ)
{
int child_proc_number = MAX_CHILD_NUMBER;
int i, ch;
pid_t child_pid;
pid_t pid[10]={0};
if (argc > 1)
{
child_proc_number = atoi(argv[1]);
child_proc_number= (child_proc_number > 10) ? 10 :
child_proc_number;
}
for (i=0; i<child_proc_number; i++) {
child_pid=fork();
switch(child_pid){
case -1:exit(1);
case 0:proc_number=i;
do_something();
exit(1);
default:pid[i]=child_pid;break;
}
}
/* 让用户选择杀死进程，数字表示杀死该进程，q退出 */
while ((ch = getchar()) != 'q'){
if (isdigit(ch)){
kill(pid[ch-'0'],SIGTERM);
wait();
}
}
kill(0,SIGTERM);
return;
}
main()
{
int s, t, i;
if ((s= establish(34835)) < 0) { /* plug in the phone */
perror("establish error");
exit(-1);
}
//signal(SIGCHLD, fireman); /* this eliminates zombies */
for (i=0;i=1;i++) { /* loop for phone calls */
if ((t= get_connection(s)) < 0) { /* get a connection */
if (errno == EINTR) /* EINTR might happen on accept(), */
continue; /* try again */
perror("accept"); /* bad */
exit(1);
}
switch(fork()) { /* try to handle connection */
case -1 : /* bad news. scream and die */
perror("fork");
close(s);
close(t);
exit(1);
case 0 : /* we're the child, do something */
close(s);
do_something(t);
exit(0);
default : /* we're the parent so look for */
close(t); /* another connection */
continue;
}
}
}
void operator()()
{
for (unsigned j = 0; j < 1000000; ++j)
{
do_something(i);
}
}
void * child_main(void *args)
{
sarg * arg = (void *)args;
int listenfd = arg->listenfd;
int addrlen = arg->addrlen;
int connfd;
socklen_t clilen;
struct sockaddr *cliaddr;
cliaddr = malloc(addrlen);
printf("thread %lu starting...\n", pthread_self());
for (;;)
{
sleep(3);
clilen = addrlen;
connfd = accept(listenfd, cliaddr, &clilen);
if (connfd == -1)
{
err_exit("accept failed");
}
do_something(getpid(), pthread_self(), connfd);
close(connfd);
}
return NULL;
}
void f (int m, int n)
{
int j;
for (j = m; j < m + 10 && j < n; j ++)
do_something (j);
}
/***********************************************************
* Student No: 12815482 *
* Student Name: Tirthankar Bhaumik *
* Course: MSc Computing for Financial Services *
* Assignment: Final Assignment 4 *
* Objective: Demo of CPPCHECK tool - Null Pointer Exception*
************************************************************/
void f1(struct fred_t *p)
{
// dereference p and then check if it's NULL
int x = p->x;
if (p)
do_something(x);
}
int Parent::funcOne (int delim) const
{
int i;
for (i = 0; i < delim; i++)
do_something(data, i);
return 1;
}
void bar2(int i, int j)
{
struct X x;
x.i = i;
x.j = j;
do_something (x);
}
int
main (void)
{
new_integer_type toto = 30;
do_something(&toto);
return 0;
}
int main(int argc, char **argv)
{
startup_checks();
parseargs(argc, argv);
connect_to_server();
gethandle();
while (1)
do_something();
}
int main(void)
{
#if _DEBUG
freopen("input.txt","r", stdin);
#endif
input_proc();
do_something();
output_proc();
return 0;
}
int ZPClient::test_callback(do_something_callback cb)
{
printf("client - test_cb - \n");
sp<ProcessState> proc(ProcessState::self());
add_cb(cb);
do_something();
ProcessState::self()->startThreadPool();
IPCThreadState::self()->joinThreadPool();
return 0;
}
int
test_ifelse3 (int i, int j)
{
int result = 1;
if (i > 10 && j > i && j < 20) /* branch(27 50 75) */
/* branch(end) */
result = do_something (16);
if (i > 20) /* branch(55) */
/* branch(end) */
if (j > i) /* branch(60) */
/* branch(end) */
if (j < 30) /* branch(50) */
/* branch(end) */
result = do_something (32);
if (i == 3 || j == 47 || i == j) /* branch(9 10 89) */
/* branch(end) */
result = do_something (64);
return result;
}
int main()
{
do_something();
std::copy(std::cbegin(my_array),
std::cend (my_array),
std::ostream_iterator<unsigned int>(std::cout, ","));
std::cout << std::endl;
}
int main()
{
std::ios::sync_with_stdio(false);
extern void* __dso_handle __attribute__ ((__weak__));
__cxa_atexit((void (*) (void *)) __libc_freeres, NULL,
&__dso_handle ? __dso_handle : NULL);
do_something();
return 0;
}