111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/*************************************************************************\
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* Copyright (c) 2006 UChicago Argonne LLC, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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//
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// Verify that the local c++ exception mechanism matches the ANSI/ISO standard.
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// Author: Jeff Hill
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//
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#include <new>
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#include <iostream>
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#include <cstdio>
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#if defined(__GNUC__) && (__GNUC__<2 || (__GNUC__==2 && __GNUC_MINOR__<=96))
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#include <climits>
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#else
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#include <limits>
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#endif
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#include "epicsUnitTest.h"
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#include "epicsThread.h"
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#include "testMain.h"
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using namespace std;
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#if defined ( _MSC_VER )
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// some interesting bugs found in the MS implementation of new
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# if _MSC_VER >= 1900
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static size_t unsuccessfulNewSize = numeric_limits < size_t > :: max ();
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# elif _MSC_VER > 1310 /* this gets fixed some release after visual studio 7 we hope */
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static const size_t unsuccessfulNewSize = numeric_limits < size_t > :: max ();
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# else
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static const size_t unsuccessfulNewSize = numeric_limits < size_t > :: max () - 100;
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# endif
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// passing a size_t to printf() needs "%zu" on some platforms
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#elif defined(vxWorks)
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// Neither vxWorks 5 or 6 supply true ANSI C++
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static const size_t unsuccessfulNewSize = UINT_MAX - 15u;
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#else
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static const size_t unsuccessfulNewSize = numeric_limits < size_t > :: max ();
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#endif
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class exThread : public epicsThreadRunable {
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public:
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exThread ();
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void waitForCompletion ();
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~exThread() {};
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private:
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epicsThread thread;
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bool done;
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void run ();
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};
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static void epicsExceptionTestPrivate ()
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{
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try {
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char * p = new char [unsuccessfulNewSize];
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testFail("new char[%lu] returned %p",
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(unsigned long) unsuccessfulNewSize, p);
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}
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catch ( const bad_alloc & ) {
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testPass("new char[%lu] threw",
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(unsigned long) unsuccessfulNewSize);
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}
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catch ( ... ) {
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testFail("new: threw wrong type");
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}
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try {
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char * p = new ( nothrow )
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char [unsuccessfulNewSize];
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testOk(p == 0, "new (nothrow) returned %p", p);
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}
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catch( ... ) {
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testFail("new (nothrow): threw");
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}
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}
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exThread::exThread () :
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thread ( *this, "testExceptions", epicsThreadGetStackSize(epicsThreadStackSmall) ),
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done ( false )
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{
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this->thread.start ();
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}
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void exThread::run ()
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{
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epicsExceptionTestPrivate ();
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this->done = true;
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}
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void exThread::waitForCompletion ()
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{
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while ( ! this->done ) {
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epicsThreadSleep ( 0.1 );
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}
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}
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MAIN(epicsExceptionTest)
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{
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testPlan(4);
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epicsExceptionTestPrivate ();
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exThread athread;
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athread.waitForCompletion ();
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return testDone();
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}
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