Questions and Answers of Case Studies Finance

What does printf() do?
Do the values given to printf() change?
Can printf() print structures?
When should we use gets()?
How does data flow for a stream opened for reading?
How does data flow for a stream opened for writing or appending?
Why did we need to run each program several times?
If an input filename is specified but the file doesn't exist, can we continue executing our program?
Can you declare structures in a header file?
Can you allocate an array in a header file?
Can you define functions in a header file?
Can you tell that I think getting tricksy with the preprocessor is a really bad idea?
What happens if you specify an invalid format string?
How many forms of main() are there?
What does argv provide to our program?
Is there a single standard command-line processor to parse and process argv?
Are the input specifiers for scanf() identical to the output specifiers for printf()?
List three ways to get input from the console and convert that input to the desired data type.
How many times can you define a function?
How do you prevent name clashes when using header files?
What is a compilation unit?
What is the default filename that make will process if no other is given?
Unless otherwise specified, which rule will always be processed?
What are the three parts of a make rule?
How does make determine whether a target needs to be rebuilt?
What is a stream?
What are preferred alternatives to gets()?
What is the difference between a stream and a file?
What are the three basic modes for file streams?
Name various streaming devices (whether they have files or not).
What is the difference between opening an output file for writing and opening an output file for appending?
Is it always necessary to handle the final character when using fgets()?
Identify the three components of scope.
Is a compilation unit a complete program?
Identify the five types of visibility scope.
Can you name the five types of statements we have already encountered?
Can you name the three types of statements we have not encountered yet?
Can you name the five parts of a function definition?
What is another name for a function declaration?
Is a return statement always required? If not, why not?
Identify the four intrinsic types we have encountered (ignore the fifth type, pointers, for now).
For each of the four intrinsic types, identify each sub-type.
Why is the size of a data type important?
What are the three components of a variable?
What are the various types of constant values?
Why do we initialize variables?
How do we give a variable a value?
Are all operations available for all data types? Why or why not?
What are the arithmetic operators?
What are the logical operators?
Why might you need to use type casting?
Should we rely on built-in operator precedence? How can we ensure proper order of evaluation?
Are both statements of an if()… else... statement executed?
Can you replace every if()… statement with a switch()… statement?
Can you replace every switch()… statement with a complex if()… statement?
How do you avoid the dangling else problem?
What are the four types of looping statements in C?
What is the difference between a counter-controlled loop and a sentinel-controlled loop?
What is the minimum number of times a while()… loop will be executed? What is the maximum number?
What is the minimum number of times a do … while() loop will be executed? What is the maximum number?
Which looping statement(s) are best for counter-controlled looping? Which are best for sentinel-controlled looping?
True or false – you should never consider using goto.
Why might you want to use an enumerated type?
Do you have to give each enumerated constant a value?
Do enumerated constants have to be unique with a group?
Do the values of each case: condition in a switch()… statement have to be unique?
Enumerated constants are limited to which intrinsic data type?
How do you initialize a variable of struct someName to zero?
How do you do a bitwise copy of one structure variable to another?
What are the advantages of initializing the components of a structure variable at the time of declaration?
What are the disadvantages of initializing the components of a structure variable at the time of declaration?
Which data types may make up the components of a structure?
What does the typedef keyword provide for intrinsic types?
What does the typedef keyword provide for enumeration and structure types?
How is using typedef for enumerations different from using typedef for structures?
What are two compiler switches that help us prevent undefined program behavior?
What goes into a header file? What does not go into a header file?
What are the three components of an array definition?
What is a constant-length array definition?
What is a variable-length array definition?
Can you initialize a constant-length array when it is defined? Can you initialize a VLA when it is defined?
Why are VLAs useful as function parameters?
What is another name for a 1D array?
What is another name for a 2D array?
What are some possible real-life representations of a 3D array?
In a 2D or 3D array, which index represents the x axis or column number?
Is it more desirable to use CLA or VLA definitions for multi-dimensional arrays?
Does a pointer variable have a value? If so, what is that value?
Does a pointer have a type?
What is the target of a pointer?
When a variable is passed via a function parameter, what is copied? When a pointer is passed via a function parameter, what is copied?
What is dereferencing a pointer?
What is addressable via a pointer? What is not?
Are array notation and pointers identical?
When you increment an array index by 1, what does that do?
When you increment a pointer to an array element by 1, what does that do?
Is this array always contiguous: int arr[3][5]?
Are the elements of an array of pointers to other arrays always contiguous?
If we pass a pointer to an array as a function parameter, must we use pointer notation to access the elements of the array?
Does C remember the size of any array?

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