Cosc 1437 ch10 (Q3)

After the following statement executes what value is stored in the variable num? num = atoi ("1000");

1000

To use the strlen function in a program, you must also write #include ________.

<cstring>

T/F: Although C++ provides ample library functions to handle numeric values, we must write all of our own functions to manipulate character values.

False

T/F: By being able to pass arrays as arguments, you can write your own functions for processing C-strings.

True

T/F: C++ introduces a function named to_string that converts a numeric value to a string object

True

T/F: The C++ library provides functions for converting a string representation of a number to a numeric data type and vice-versa.

True

T/F: The isdigit function will return a true if it's argument is a digit between 0 and 9

True

T/F: The itoa function is similar to atoi but it works in reverse.

True

You may use the <, >, <=, >=, ==, and != relational operators to compare string objects.

True

To test whether a character is a printable character, use this function.

isprint

This function will return true if its argument is a printable character other than a digit, letter, or space.

ispunct

The null terminator stands for this ASCII code

0

T/F: A test using the isupper function will return false if the argument is an uppercase character.

False

T/F: The C++ compiler performs strict array bounds checking when it encounters an array of characters.

False

This function accepts a C-string containing a number as its argument and returns the integer equivalent.

atoi

To define a C-string that will store students' last names of up to 25 characters in length, which is an appropriate statement?

char lastName[26];

This function concatenates the contents of one c-string with another c-string

strcat

This function accepts a C-string as an argument and converts the string to a long integer.

Atoi

To determine whether a character is white space, use this function

Isspace

What is the output of the following statement cout << tolower(toupper('Z')) << endl;

Lower case z

Which of the following lines of code defines an array of C-strings that will hold 49 characters and the null terminator?

char str[50];

The C-string company[12] can hold

eleven characters and the null terminator

This library function reverses the order of a C-string.

none of these

A library function that can find one C- string inside another is:

strstr

To change a lower case character to an upper case character use this function

toupper