1// REQUIRES: static-analyzer
2// RUN: %check_clang_tidy %s mpi-buffer-deref %t -- -- -I %S/Inputs/type-mismatch
3
4#include "mpimock.h"
5
6void negativeTests() {
7 char *buf;
8 MPI_Send(&buf, 1, MPI_CHAR, 0, 0, MPI_COMM_WORLD);
9 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->pointer [mpi-buffer-deref]
10
11 unsigned **buf2;
12 MPI_Send(buf2, 1, MPI_UNSIGNED, 0, 0, MPI_COMM_WORLD);
13 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->pointer
14
15 short buf3[1][1];
16 MPI_Send(buf3, 1, MPI_SHORT, 0, 0, MPI_COMM_WORLD);
17 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: array->array
18
19 long double _Complex *buf4[1];
20 MPI_Send(buf4, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
21 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->array
22
23 std::complex<float> *buf5[1][1];
24 MPI_Send(&buf5, 1, MPI_CXX_FLOAT_COMPLEX, 0, 0, MPI_COMM_WORLD);
25 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->array->array->pointer
26}
27
28void positiveTests() {
29 char buf;
30 MPI_Send(&buf, 1, MPI_CHAR, 0, 0, MPI_COMM_WORLD);
31
32 unsigned *buf2;
33 MPI_Send(buf2, 1, MPI_UNSIGNED, 0, 0, MPI_COMM_WORLD);
34
35 short buf3[1][1];
36 MPI_Send(buf3[0], 1, MPI_SHORT, 0, 0, MPI_COMM_WORLD);
37
38 long double _Complex *buf4[1];
39 MPI_Send(*buf4, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
40
41 long double _Complex buf5[1];
42 MPI_Send(buf5, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
43
44 std::complex<float> *buf6[1][1];
45 MPI_Send(*buf6[0], 1, MPI_CXX_FLOAT_COMPLEX, 0, 0, MPI_COMM_WORLD);
46
47 // Referencing an array with '&' is valid, as this also points to the
48 // beginning of the array.
49 long double _Complex buf7[1];
50 MPI_Send(&buf7, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
51}
52

source code of clang-tools-extra/test/clang-tidy/checkers/mpi/buffer-deref.cpp