CSE 333 25au Exercise 11

out: Wednesday, October 29, 2025
due: Friday, October 31, 2025 by 10:00 am, No late exercises accepted.

Goals: Learn to use the C++ STL container vector and some algorithms associated with it, create and use a function template, and learn how to check for errors when reading data from an input stream.

Description: Write a C++ program that prompts the user to type in 6 doubles, reads those doubles from stdin into a std::vector of doubles, sorts the vector using std::sort, and then prints out the sorted vector. To gain additional practice with templates, you should create and use a helper function called ReadValue to read each input value. This function should use templates to abstract away the type returned; i.e., it should have the following function prototype:

template <typename T> T ReadValue(istream & in);

As well, ReadValue should detect conversion errors and unexpected EOF conditions, and, in such cases, exit(EXIT_FAILURE) after printing out a helpful error message to cerr. Member functions of istream like .good can be useful for this. See the istream documentation.

Altogether, your program should match the following transcript as closely as you can:

bash$ g++ -Wall -g -std=c++17 -o ex11 ex11.cc
bash$ ./ex11
Enter 6 doubles:
6.0
3.33
10.1
-10.5
6
1.441
Your sorted doubles are:
-10.5
1.441
3.33
6
6
10.1
bash$

Your code must:

be contained in a single file called ex11.cc and compile without errors or warnings on CSE Linux machines (lab workstations, attu, or CSE home VM) using the command
```
g++ -Wall -g -std=c++17 -o ex11 ex11.cc
```
have no crashes, memory leaks, or memory errors on CSE linux machines
be pretty: the formatting, modularization, variable and function names, use of const and so on must make us smile rather than cry. (Hints: Google C++ Style Guide, cpplint)
be robust: you should think about handling bogus input from the user (if any), and you should handle hard-to-handle cases (if there are any) gracefully.
have a comment at the top of each source file with your name, and CSE or UW email address.

You should submit your exercise using the Gradescope dropbox linked on the course resources web page.