llvm-project/clang/test/Analysis/test-separate-retaincount.cpp

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C++

// RUN: %clang_analyze_cc1 -std=c++14 -verify=no-retain-count %s \
// RUN: -analyzer-checker=core,osx \
// RUN: -analyzer-disable-checker osx.cocoa.RetainCount
//
// RUN: %clang_analyze_cc1 -std=c++14 -verify=no-os-object %s \
// RUN: -analyzer-checker=core,osx \
// RUN: -analyzer-disable-checker osx.OSObjectRetainCount
#include "os_object_base.h"
typedef const void * CFTypeRef;
extern CFTypeRef CFRetain(CFTypeRef cf);
extern void CFRelease(CFTypeRef cf);
#define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
extern CFTypeRef CFCreate() CF_RETURNS_RETAINED;
using size_t = decltype(sizeof(int));
void cf_overrelease() {
CFTypeRef cf = CFCreate();
CFRelease(cf);
CFRelease(cf); // no-os-object-warning{{Reference-counted object is used after it is released}}
}
void osobject_overrelease() {
OSObject *o = new OSObject;
o->release();
o->release(); // no-retain-count-warning{{Reference-counted object is used after it is released}}
}