word_shift

Words and tokens24

Objective

Write a program that takes a single string argument, rotates its first word to the end, and prints the result.

Steps

Words are sequences of non-whitespace characters separated by spaces or tabs.
Print all words except the first, in their original order, each separated by a single space.
Then append a single space followed by the original first word.
End the output with a newline.
If the argument is absent, print wrong number of arguments followed by a newline. If it contains only whitespace, print only a newline.
You may use write, malloc, and free.

examples

$ ./word_shift "hello world foo"

world foo hello

$ ./word_shift "alone"

alone

$ ./word_shift

wrong number of arguments

Constraints

Expected files

word_shift.c

Allowed functions

writemallocfree

Allowed headers

<stdlib.h>declares malloc and free

<unistd.h>declares write

Tests

Run the tests to grade your code

Build

01No arguments

02First word moved to end

03Multiple spaces between words are collapsed

04Leading and trailing whitespace ignored

05Single word stays in place

word_shift

Objective

Write a program that takes a single string argument, rotates its first word to the end, and prints the result.

Steps

Words are sequences of non-whitespace characters separated by spaces or tabs.
Print all words except the first, in their original order, each separated by a single space.
Then append a single space followed by the original first word.
End the output with a newline.
If the argument is absent, print wrong number of arguments followed by a newline. If it contains only whitespace, print only a newline.
You may use write, malloc, and free.

examples

$ ./word_shift "hello world foo"

world foo hello

$ ./word_shift "alone"

alone

$ ./word_shift

wrong number of arguments

Constraints

Expected files

word_shift.c

Allowed functions

writemallocfree

Allowed headers

<stdlib.h>declares malloc and free

<unistd.h>declares write

word_shift

Words and tokens24

Objective

Write a program that takes a single string argument, rotates its first word to the end, and prints the result.

Steps

Words are sequences of non-whitespace characters separated by spaces or tabs.
Print all words except the first, in their original order, each separated by a single space.
Then append a single space followed by the original first word.
End the output with a newline.
If the argument is absent, print wrong number of arguments followed by a newline. If it contains only whitespace, print only a newline.
You may use write, malloc, and free.

examples

$ ./word_shift "hello world foo"

world foo hello

$ ./word_shift "alone"

alone

$ ./word_shift

wrong number of arguments

Constraints

Expected files

word_shift.c

Allowed functions

writemallocfree

Allowed headers

<stdlib.h>declares malloc and free

<unistd.h>declares write

Tests

Run the tests to grade your code

Build

01No arguments

02First word moved to end

03Multiple spaces between words are collapsed

04Leading and trailing whitespace ignored

05Single word stays in place