cpp/cstrings/examples/cstr Source

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Description
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An example of a null-terminated character array.

Epilogue
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Choices
json list of string, bool pairs
e.g. [["good", true], ["bad", false]]

Correct answer
Template / Reference solution

Template / Reference solution

#include <iostream>
#include <string>
using namespace std;

int main() {
\[

\show:
// create array. which ones are valid?
char greeting[6] = {'H', 'e', 'l', 'l', 'o', '\0'};
//char greeting[] = {'H', 'e', 'l', 'l', 'o', '\0'};
//char greeting[5] = {'H', 'e', 'l', 'l', 'o', '\0'};
//char greeting[7] = {'H', 'e', 'l', 'l', 'o', '\0'};
//char greeting[6] = {'H', 'i', '\0', 'o', 'k', '\0'};

// ? what about this one?
// char greeting[] = {'H', 'e', 'l', 'l', 'o', ' ', 'm', 'y',
// ' ', 'f', 'r', 'i', 'e', 'n', 'd', 's'};

// pass its address to cout
cout << greeting;

return 0;
]\
}

Java test suite
See manual

C++ test suite
json list of stdin/args tests
e.g. [{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]
to just run once with no input use [{}]

[
{}
]

C++ test suite
See manual

Forbidden substrings
json list of strings
e.g. ["for","while"]

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Java imports
json list of importables
e.g. ["java.util.*"]

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Override Java classname
else defaults to
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Dependent on other websheets?
json list of websheet names in this folder
e.g. ["DataStructure"]

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Is example?
i.e., just a demo
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Add compiler flag(s)
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Remove default compiler flag(s)
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see default_cppflags
e.g. ["-Wno-write-strings"]

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Property	Value
Description html markup shown to student	An example of a null-terminated character array.
Epilogue html markup shown when solved	remove
Public permissions	remove
Remarks Comments, history, license, etc.	remove
Engine
Choices json list of string, bool pairs e.g. `[["good", true], ["bad", false]]`
Correct answer
Template / Reference solution
Template / Reference solution	#include <iostream> #include <string> using namespace std; int main() { \[ \show: // create array. which ones are valid? char greeting[6] = {'H', 'e', 'l', 'l', 'o', '\0'}; //char greeting[] = {'H', 'e', 'l', 'l', 'o', '\0'}; //char greeting[5] = {'H', 'e', 'l', 'l', 'o', '\0'}; //char greeting[7] = {'H', 'e', 'l', 'l', 'o', '\0'}; //char greeting[6] = {'H', 'i', '\0', 'o', 'k', '\0'}; // ? what about this one? // char greeting[] = {'H', 'e', 'l', 'l', 'o', ' ', 'm', 'y', // ' ', 'f', 'r', 'i', 'e', 'n', 'd', 's'}; // pass its address to cout cout << greeting; return 0; ]\ }
Java test suite See manual
C++ test suite json list of stdin/args tests e.g. `[{"stdin":"hi", "args":["4", "5"]}, {"stdin":"noargs"}]` to just run once with no input use `[{}]`	[ {} ]
C++ test suite See manual
Forbidden substrings json list of strings e.g. `["for","while"]`	remove
Solution visibility	remove
Java imports json list of importables e.g. `["java.util.*"]`	remove
Override Java classname else defaults to websheet name	remove
Dependent on other websheets? json list of websheet names in this folder e.g. `["DataStructure"]`	remove
Is example? i.e., just a demo	remove
Add compiler flag(s) json list of flags e.g. `["-Wno-unused-variable"]`	remove
Remove default compiler flag(s) json list of flags see default_cppflags e.g. `["-Wno-write-strings"]`	remove

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