CSE240 - C LANGUAGE EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED

CSE240 - C LANGUAGE EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED A data type is... - a set of possible values - a set of possible operations on these values - a representation of these values for a specific machine four basic types - char - int - float - double modifiers used to modify the length or size of data What are the four derived types in C? Pointers, arrays, structs, unions What is the purpose of pointers in C? To hold the address of entities of some type Give an example of a pointer declaration in C char* cptr (cptr holds the address) How are structs used in C? To group together things of possibly different types array format char cArray[n+1] pointer arithmetic addresses are integers i.e. &b + 3 char can range only from -128 to 127 long can range from -2,147,483,648 to 2,147,483,647 C does not have a boolean type. How would you define it? #define BOOL char #define FALSE 0 #define TRUE 1 int range -2,147,483,648 to 2,147,483,647 (used for numbers) most common directive #include stdio.h int main() { ... } will return an integer - if our code ran successfully, 0. - # 0 means that the program failed how to manually populate an array cArray[0]; cArray[1]; ... cArray[n]; or { ... } multidimensional array format type name[size1][size2]...[sizeN]; 2-dimensional array type arrayName [x][y]; [ x ] number of rows and [ y ] number of columns What is i and j?