Fizz Buzz in Gnu Make

Welcome to the Fizz Buzz in Gnu Make page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

# Numbers are represented as x's so that they can be manipulated with text functions.
# This idea is based on how the GNU Make Standard Library (https://github.com/jgrahamc/gmsl)
# handles numbers.
ZERO :=
ONE := x
TWO := x x
THREE := x x x
FIVE := $(THREE) $(TWO)
TEN := $(FIVE) $(FIVE)
FIFTEEN := $(TEN) $(FIVE)
HUNDRED := $(TEN) $(TEN) $(TEN) $(TEN) $(TEN) $(TEN) $(TEN) $(TEN) $(TEN) $(TEN)

# Is divisible function
# Arg 1: Number encoded as x's
# Arg 2: Divisor encoded as x's
# Return: $(ONE) if divisible, $(ZERO) otherwise
IS_DIVISIBLE = $(if $(strip $(subst $(2),,$(1))),$(ZERO),$(ONE))

# Is less than function
# Arg 1: Number 1 encoded as x's
# Arg 2: Number 2 encoded as x's
# Return: $(ONE) if Number 1 < Number 2, $(ZERO) otherwise
IS_LESS_THAN = $(if $(wordlist $(words $(call INC,$(1))),$(words $(2)),$(2)),$(ONE),$(ZERO))

# Increment function
# Arg 1: Number encoded as x's
# Return: Number + 1 encoded as x's
INC = $(strip $(1) $(ONE))

# Fizz Buzz function
# Arg 1: Number encoded as x's
# Return: One of the following:
# - FizzBuzz if Number is divisible by 15
# - Fizz if Number is divisible by 3
# - Buzz if Number if divisible 5
# - Otherwise, Number converted to decimal representation
FIZZ_BUZZ = $(strip \
    $(if $(call IS_DIVISIBLE,$(1),$(FIFTEEN)),FizzBuzz,\
        $(if $(call IS_DIVISIBLE,$(1),$(THREE)),Fizz,\
            $(if $(call IS_DIVISIBLE,$(1),$(FIVE)),Buzz,$(words $(1)))\
        ) \
    ) \
)

# Fizz Buzz loop
#
# Outputs result of Fizz Buzz function starting at starting number and ending
# at the ending number
#
# Arg 1: Starting number encoded as x's
# Arg 2: Ending number encoded as x's
define FIZZ_BUZZ_LOOP
$(info $(call FIZZ_BUZZ,$(1)))
$(if $(call IS_LESS_THAN,$(1),$(2)),$(call FIZZ_BUZZ_LOOP,$(call INC,$(1)),$(2)))
endef

# Run Fizz Buzz loop from 1 to 100
$(call FIZZ_BUZZ_LOOP,$(ONE),$(HUNDRED))

.PHONY: all
all: ;@:

Fizz Buzz in Gnu Make was written by:

• rzuckerm

If you see anything you'd like to change or update, please consider contributing.

Note: The solution shown above is the current solution in the Sample Programs repository as of Jul 25 2023 18:34:17. The solution was first committed on Jul 17 2023 10:29:11. As a result, documentation below may be outdated.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.