Ch. 10 Characters, C-strings and More About the string Class

Question 1

The _______ function returns true if the character argument is uppercase.

Answer 1

isupper

Question 2

The _______ function returns true if the character argument is a letter of the alphabet.

Answer 2

isalpha

Question 3

The _______ function returns true if the character argument is a digit.

Answer 3

isdigit

Question 4

The _______ function returns true if the character argument is a whitespace character.

Answer 4

isspace

Question 5

The ______ function returns the uppercase equivalent of its character argument.

Answer 5

toupper

Question 6

The _______ function returns the lowercase equivalent of its character argument.

Answer 6

tolower

Question 7

The ________ file must be included in a program that uses character testing functions.

Answer 7

cctype

Question 8

The _______ function returns the length of a string.

Answer 8

strlen

Question 9

To _______ two strings means to append one string to the other.

Answer 9

concatenate

Question 10

The ________ function concatenates two strings.

Answer 10

strcat

Question 11

The ________ function copies one string to another.

Answer 11

strcopy

Question 12

The ________ function searches for a string inside of another one.

Answer 12

strstr

Question 13

The _______ function compares two strings.

Answer 13

strcmp

Question 14

The ________ function copies, at most, n number of characters from one string to another.

Answer 14

strncopy

Question 15

The _______ function returns the value of a string converted to an integer.

Answer 15

atoi

Question 16

The _______ function returns the value of a string converted to a long integer.

Answer 16

atol

Question 17

The _______ function returns the value of a string converted to a float.

Answer 17

atof

Question 18

The _______ function converts an integer to a string.

Answer 18

itoa

Question 19

Character testing functions such as isupper, accept strings as arguments and test each character in the string. (T/F)

Answer 19

False

Question 20

If toupper’s argument is already uppercase, it is returned as is, with no changes. (T/F)

Answer 20

True

Question 21

If tolowers’s argument is already lowercase, it will be inadvertently converted to uppercase. (T/F)

Answer 21

False

Question 22

The strlen function returns the size of the array containing a string.

Answer 22

false, length not size

Question 23

If the starting address of a C-string is passed into a pointer parameter, it can be assumed that all the characters, from that address up to the byte that holds the null terminator, are part of the string. (T/F)

Answer 23

True

Question 24

C-string handling functions accept as arguments pointers to strings (array names or pointer variables), or literal strings. (T/F)

Answer 24

True

Question 25

The strcat function checks to make sure the first string is large enough to hold both strings before performing the concatenation. (T/F)

Answer 25

False, no bound checking in C++

Question 26

The strcpy function will overwrite the contents of its first string argument. (T/F)

Answer 26

True

Question 27

The strcpy function performs no bounds checking on the first argument. (T/F)

Answer 27

True

Question 28

There is no difference between “847” and 847. (T/F)

Answer 28

False