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Top Forums Programming C++ Bug probably scope problem Post 302915387 by yifangt on Tuesday 2nd of September 2014 04:44:45 PM
Old 09-02-2014
Almost got your point. I re-wrote the code as:
Code:
cout << "Line 9: After rolling again (third time), ";
cout << "\ndie1 (die1.roll()): " << die1.roll();    //Line 9 - a1
cout << "\ndie2 (die2.roll()): " << die2.roll();    //Line 9 - a2
cout << "\nthe sum of the numbers rolled [die1.getNum() + die2.getNum()] is: " << die1.getNum() + die2.getNum();         //Line 9 - c1
cout << "\nthe sum of the numbers rolled [die1.roll() + die2.roll()] is: " << die1.roll() + die2.roll() << endl;          //Line 9 - c2

Line 9-c1 die1.getNum() + die2.getNum() was from previous rolling.
At Line 9-c2 die1.roll() and die2.roll() gets rolled again when they are combined together as die1.roll() + die2.roll(). That caused the confusion.
In turn, Line 9-c2 prints out the same as next Line 9-2 because die1.getNum()+ die2.getNum() are from the roll() of Line 9-c2.

Without your suggestion, I could not figure this out.
Thanks again!

Yifang

Last edited by yifangt; 09-02-2014 at 05:48 PM.. Reason: typos
 

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TAU_GET_FUNC_VALS(3)					      TAU Instrumentation API					      TAU_GET_FUNC_VALS(3)

NAME
TAU_GET_FUNC_VALS - Gets detailed performance data for given functions SYNOPSIS
C/C++: TAU_GET_FUNC_VALS(const char **inFuncs, int numOfFuncs, double ***counterExclusiveValues, double ***counterInclusiveValues, int **numOfCalls, int **numOfSubRoutines, const char ***counterNames, int *numOfCounters, int tid); DESCRIPTION
It gets detailed performance data for the list of routines. The user specifies inFuncs and the number of routines; TAU then returns the other arguments with the performance data. counterExclusiveValues and counterInclusiveValues are two dimensional arrays: the first dimension is the routine id and the second is counter id. The value is indexed by these two dimensions. numCalls and numSubrs (or child routines) are one dimensional arrays. EXAMPLE
C/C++ : const char **inFuncs; /* The first dimension is functions, and the second dimension is counters */ double **counterExclusiveValues; double **counterInclusiveValues; int *numOfCalls; int *numOfSubRoutines; const char **counterNames; int numOfCouns; TAU_GET_FUNC_NAMES(functionList, numOfFunctions); /* We are only interested in the first two routines that are executing in this context. So, we allocate space for two routine names and get the performance data for these two routines at runtime. */ if (numOfFunctions >=2 ) { inFuncs = (const char **) malloc(sizeof(const char *) * 2); inFuncs[0] = functionList[0]; inFuncs[1] = functionList[1]; //Just to show consistency. TAU_DB_DUMP(); TAU_GET_FUNC_VALS(inFuncs, 2, counterExclusiveValues, counterInclusiveValues, numOfCalls, numOfSubRoutines, counterNames, numOfCouns); TAU_DUMP_FUNC_VALS_INCR(inFuncs, 2); cout << "@@@@@@@@@@@@@@@" << endl; cout << "The number of counters is: " << numOfCouns << endl; cout << "The first counter is: " << counterNames[0] << endl; cout << "The Exclusive value of: " << inFuncs[0] << " is: " << counterExclusiveValues[0][0] << endl; cout << "The numOfSubRoutines of: " << inFuncs[0] << " is: " << numOfSubRoutines[0] << endl; cout << "The Inclusive value of: " << inFuncs[1] << " is: " << counterInclusiveValues[1][0] << endl; cout << "The numOfCalls of: " << inFuncs[1] << " is: " << numOfCalls[1] << endl; cout << "@@@@@@@@@@@@@@@" << endl; } TAU_DB_DUMP_INCR(); SEE ALSO
TAU_GET_COUNTER_NAMES(3), TAU_GET_FUNC_NAMES(3), TAU_DUMP_FUNC_NAMES(3), TAU_DUMP_FUNC_VALS(3) 08/31/2005 TAU_GET_FUNC_VALS(3)
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