text: // REQUIRES: static-analyzer
  // RUN: %check_clang_tidy %s mpi-buffer-deref %t -- -- -I %S/Inputs/mpi-type-mismatch
  
  #include "mpimock.h"
  
  void negativeTests() {
    char *buf;
    MPI_Send(&buf, 1, MPI_CHAR, 0, 0, MPI_COMM_WORLD);
    // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->pointer [mpi-buffer-deref]
  
    unsigned **buf2;
    MPI_Send(buf2, 1, MPI_UNSIGNED, 0, 0, MPI_COMM_WORLD);
    // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->pointer
  
    short buf3[1][1];
    MPI_Send(buf3, 1, MPI_SHORT, 0, 0, MPI_COMM_WORLD);
    // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: array->array
  
    long double _Complex *buf4[1];
    MPI_Send(buf4, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
    // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->array
  
    std::complex<float> *buf5[1][1];
    MPI_Send(&buf5, 1, MPI_CXX_FLOAT_COMPLEX, 0, 0, MPI_COMM_WORLD);
    // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: buffer is insufficiently dereferenced: pointer->array->array->pointer
  }
  
  void positiveTests() {
    char buf;
    MPI_Send(&buf, 1, MPI_CHAR, 0, 0, MPI_COMM_WORLD);
  
    unsigned *buf2;
    MPI_Send(buf2, 1, MPI_UNSIGNED, 0, 0, MPI_COMM_WORLD);
  
    short buf3[1][1];
    MPI_Send(buf3[0], 1, MPI_SHORT, 0, 0, MPI_COMM_WORLD);
  
    long double _Complex *buf4[1];
    MPI_Send(*buf4, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
  
    long double _Complex buf5[1];
    MPI_Send(buf5, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
  
    std::complex<float> *buf6[1][1];
    MPI_Send(*buf6[0], 1, MPI_CXX_FLOAT_COMPLEX, 0, 0, MPI_COMM_WORLD);
  
    // Referencing an array with '&' is valid, as this also points to the
    // beginning of the array.
    long double _Complex buf7[1];
    MPI_Send(&buf7, 1, MPI_C_LONG_DOUBLE_COMPLEX, 0, 0, MPI_COMM_WORLD);
  }
  