1 // RUN: %clangxx_unit -O0 %s -o %t 2>&1 2 // RUN: %env_esan_opts="record_snapshots=0" %run %t 2>&1 | FileCheck %s 3 4 #include "esan/esan_circular_buffer.h" 5 #include "sanitizer_common/sanitizer_placement_new.h" 6 #include <assert.h> 7 #include <stdio.h> 8 9 static const int TestBufCapacity = 4; 10 11 // The buffer should have a capacity of TestBufCapacity. 12 void testBuffer(__esan::CircularBuffer<int> *Buf) { 13 assert(Buf->size() == 0); 14 assert(Buf->empty()); 15 16 Buf->push_back(1); 17 assert(Buf->back() == 1); 18 assert((*Buf)[0] == 1); 19 assert(Buf->size() == 1); 20 assert(!Buf->empty()); 21 22 Buf->push_back(2); 23 Buf->push_back(3); 24 Buf->push_back(4); 25 Buf->push_back(5); 26 assert((*Buf)[0] == 2); 27 assert(Buf->size() == 4); 28 29 Buf->pop_back(); 30 assert((*Buf)[0] == 2); 31 assert(Buf->size() == 3); 32 33 Buf->pop_back(); 34 Buf->pop_back(); 35 assert((*Buf)[0] == 2); 36 assert(Buf->size() == 1); 37 assert(!Buf->empty()); 38 39 Buf->pop_back(); 40 assert(Buf->empty()); 41 } 42 43 int main() 44 { 45 // Test initialize/free. 46 __esan::CircularBuffer<int> GlobalBuf; 47 GlobalBuf.initialize(TestBufCapacity); 48 testBuffer(&GlobalBuf); 49 GlobalBuf.free(); 50 51 // Test constructor/free. 52 __esan::CircularBuffer<int> *LocalBuf; 53 static char placeholder[sizeof(*LocalBuf)]; 54 LocalBuf = new(placeholder) __esan::CircularBuffer<int>(TestBufCapacity); 55 testBuffer(LocalBuf); 56 LocalBuf->free(); 57 58 fprintf(stderr, "All checks passed.\n"); 59 // CHECK: All checks passed. 60 return 0; 61 } 62
