Thank you so much.

Hi eggi,

Thank you for your reply. I don't want to remove all the line that begin with a pound character and then start with ifndef,define or endif. I just want to remove the three lines in...

Some of my source files include the following code.

#ifndef AAAAAAAAAAAA
#define AAAAAAAAAAAA
#if !defined(__lint) && !defined(_lint)
XXXXXXXXXXXXXXXXXXXXXXXXX;
#endif
#endif

Maybe, you confused the functionality of Event struct and Node struct.

There are two ways to reach you objective.
First,

struct EventNode
{
tm startTime, endTime;
string eventItem;
...

Thank you. got it.

Thank you.

In fact, I have written test program and have run a lot of test case, all those case were OK.
I just want that is a standard of C++ or just dependent on the compiler( I used Dev-C++...

Thank you for your reply.

In my example, Do you mean the default behavior is call the operator= of class B? If the default behavior is just memory copy and class B have pointer member, it will...

Does it need a copy constructor and an operator= for a class which have array member?
for example:

Class A
{
private:
B data_[100]; //B is a class
};

does class A need a copy...

Please see my comments below

Sorry for troubling you with the windows.h. I included it just for using Sleep function to debug your code. After debugging I deleted the Sleep function but forgot to delete the windows.h.

I think you maybe misunderstand the meaning of index and size. There are some errors in your code, please see my comments below. I attached my code, which is base on yours. Please refer to it.

I did not understand your algorithm for predicate whether two number are equivalent.
I think at least the equivalent function should return a bool value.

Which container do you use to store the number? vector? list?
if you use list, you can use the unique(op) function to eliminate the duplicate number. the op is a function or a functional object used...

Thank you so much.

Why constructor can not be defined as virtual?

Thanks

Thank you!

I don't know the answer of the second question: if pattern is a array, how to optimize it?

Question is :
Write a function int f(char* str, long pattern) to find out how many pattern does the str contain? str is a char array consist of '1' and '0';
for example: str =...

It wrong here:


for (counter = 0; counter < 6; counter++)

if(sellItem == itemName[counter])


if there are less than 6 item in itemName, it will occur memory error.

I do not think this is what he want. I think his condition is like that:
there are a lot of line in file hello.txt , like
Set wallpaper=
Set color=
Set ....=.....
what he want is find out the...

I am not sure I understand what you want. Maybe, the following code can help you. I write it using C++, you can translate it to C. This code can replace the text Set wallpaper="aaaa" with Set...

What will happen if caught exception when new a object? For example:

ClassTest* ptr = 0;
try
{
ptr = new ClassTest;
}
catch(...)
{
}

for (int k = 0; k < rowsb; k++)
{
sum = sum + matrixa[i * columnsa + k] * matrixb[k * columnsb + j];
matrixc[i * finalcolumn + k] = sum; //move this line out of this loop then use j replace k,...

Sorry, my English is not so good. I mean that using

one_dimensional_array[i*column + j]

instead of

two_dimensional_array[i][j]

for (int i=0; i<rowsa; i++)
{
for (int j=0; j<columnsb; j++)
{
float sum = 0.0;
for (int k=0; k<columnsa; k++)
{
//first, look it as a two-dimensions array,...

kindly reminder, the sort function I posted don't work correctly, you should correct it by yourself.

I have finished it, but to don't violate the rules of this website --"Don't give away code" , I can not give you all my source code. The following is the framework of program. hope it can help you.
...

delete the ';' at the end of this line

you can not pass an array to a function without tell the number of the array elements, otherwise, the number of the array elements will be unknown in the function.

you should define the function...

I think it's more efficient than using pointer.



just be double.

I found two problem.
1. if you use the following code to open a file, the file must exist before running your program.

f1.open ("doc1.txt", ios::in | ios:: out);

you can just use the default...

Why you want to change vector<int> to float? Do you want to use the float total to store the sum of the exam codes? maybe you can add a member to your struct. like this:

struct exam
{
int...

The various combinations of the flags and the corresponding meaning as below:

ios_base Flags Meaning
in Reads (file must exist)
out ...

int len = strlen(sentenceHolder1);
for(int i = 0; i < len; i++)
{
if( sentenceHolder1[i] == look_for_character )
sentenceHolder1[i] = sentenceHolder1[0]; //I think this will be OK
}...

a

I see, thank you for your answer.

hi dougy83, thank you so much. maybe i got it;

in a singleton class, if a member function isn't dependent on whether the instance has been created or not, you can define it as static. so, user...

You can not pass a array to a function without the element number of each dimension. in the function, it will not know the number of the elements.
1. you can use struct to pass multidimensional...

I don't refer to the member function used to get instance(such as getInstance above) . I mean define the other member function as static(such as static int someFn(); above ), does this make any...

For a singleton class, there is only one instance in a process, so it's not necessary to define a member function as static, am I right?

Thanks in advance.

Do your address have space? cin can not read a string with space. maybe you should use getline to read the address.