0c61ac0833
Define THROW_EXCEPTION(E) which takes an exception class instance, and uses it to construct an instance of a class which is a subclass of E and ExceptionMixin. The original instance is discarded, and the newly constructed sub-class is thrown. Equivalent to "throw E;". Define THROW_EXCEPTION2(ETYPE,MSG) which takes an exception class type, and argument. Directly constructs a ExceptionMixin sub-class with the given message argument. Equivalent to "throw ETYPE(MSG);". Define PRINT_EXCEPTION2(E, FP) If E is a instance of a sub-class of ExceptionMixin then write information to FP (FILE*). Define SHOW_EXCEPTION(E) If E is a instance of a sub-class of ExceptionMixin then return a std::string with information.
95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
/* testBaseException.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvDataCPP 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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/* Author: Matej Sekoranja Date: 2010.10.18 */
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#include <stddef.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include "epicsException.h"
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#include <epicsAssert.h>
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using namespace epics::pvData;
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struct Unroller
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{
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template <int N>
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void unroll(double d) {
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unroll<N-1>(d);
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}
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};
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template<>
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void Unroller::unroll<0>(double d) {
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THROW_BASE_EXCEPTION("the root cause");
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}
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void internalTestBaseException(int unused = 0)
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{
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try {
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// NOTE: 5, 4, 3, 2, 1 calls will be optimized and not shown
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Unroller().unroll<5>(42.0);
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} catch (BaseException& be3) {
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THROW_BASE_EXCEPTION_CAUSE("exception 1", be3);
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}
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}
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void testBaseException(FILE *fp) {
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fprintf(fp,"testBaseException... ");
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try {
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THROW_BASE_EXCEPTION("all is OK");
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} catch (BaseException& be) {
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fprintf(fp,"\n\n%s\n\n", be.what());
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}
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try {
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try {
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internalTestBaseException();
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} catch (BaseException& be2) {
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THROW_BASE_EXCEPTION_CAUSE("exception 2", be2);
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}
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} catch (BaseException& be) {
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fprintf(fp,"\n\n%s\n\n", be.what());
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}
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fprintf(fp,"PASSED\n");
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}
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void testLogicException(FILE *fp) {
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try {
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THROW_EXCEPTION(std::logic_error("There is a logic_error"));
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} catch (std::logic_error& be) {
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fprintf(fp,"\n\n%s\n\n", be.what());
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PRINT_EXCEPTION2(be, fp);
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}
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try {
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THROW_EXCEPTION2(std::logic_error, "There is another logic_error");
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} catch (std::logic_error& be) {
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fprintf(fp,"\n\n%s\n\n", be.what());
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fprintf(fp,"%s\n", SHOW_EXCEPTION(be).c_str());
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}
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}
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int main(int argc,char *argv[])
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{
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FILE *fp=NULL;
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if(argc>1){
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fp=fopen(argv[1], "w");
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if(!fp) fprintf(stderr,"Failed to open test output file\n");
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}
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if(!fp) fp=stdout;
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testLogicException(fp);
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testBaseException(fp);
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return(0);
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}
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