fix Makefile and README.md for 2015/muth
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@@ -1,37 +1,52 @@
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#!/usr/bin/env make
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#
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# 2015 makefile
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# IOCCC 2015 winning entry - muth
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################################################################################
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#
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# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis
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# is licensed under:
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# Regarding individual entries:
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#
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# IOCCC winning entry code may not work on your system. Even with standards,
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# conditions and build environments change, especially when it comes to more
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# extreme code such you might find in an IOCCC winner. Moreover, what was
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# allowed and liked in one IOCCC contest may no longer be liked/allowed in
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# later IOCCC years.
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#
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# Corrections on winning author and fixing typos in remarks are VERY WELCOME.
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#
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# GitHub pull requests are welcome:
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#
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# If you have a patch that might make running an entry work in modern Unix-like
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# environments, please create a GitHub pull request for the IOCCC judges to
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# consider.
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#
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# Suggestions and corrections regarding Makefiles, winning author information,
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# fixing typos in remarks, and code patches are welcome via opening a GitHub
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# issue or better yet, by creating a GitHub pull request for the IOCCC judges
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# to consider. To form a GitHub issue or GitHub pull, please visit:
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#
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# https://github.com/ioccc-src/winner
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#
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################################################################################
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# This work by Landon Curt Noll and Leonid A. Broukhis is licensed under:
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#
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# Creative Commons Attribution-ShareAlike 3.0 Unported License.
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#
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# See: http://creativecommons.org/licenses/by-sa/3.0/
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################
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# tool locations
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################
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#############################
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# shell used by this Makefile
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#############################
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#
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SHELL= bash
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CP= cp
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CPP= cpp
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GUNZIP= gunzip
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BUNZIP2= bunzip2
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LD= ld
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MAKE= make
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RM= rm
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SED= sed
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TAR= tar
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TRUE= true
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MKDIR= mkdir
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MV= mv
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TR= tr
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GREP= grep
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SORT= sort
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UNIQ= uniq
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CUT=cut
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#######################
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# common tool locations
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#######################
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#
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include ../../var.mk
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# Set X11_LIBDIR to the directory where the X11 library resides
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#
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@@ -45,51 +60,51 @@ X11_LIBDIR= /opt/X11/lib
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#X11_INCDIR= /usr/X11/include
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X11_INCDIR= /opt/X11/include
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# Compiler warnings
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#
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#CWARN=
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#CWARN= -Wall
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#CWARN= -Wall -Wextra
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CWARN= -Wall -Wextra -pedantic ${CSILENCE}
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#CWARN= -Wall -Wextra -Weverything
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#CWARN= -Wall -Wextra -Weverything -pedantic
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#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
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# Silence warnings that ${CWARN} would normally complain about
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# Common C compiler warnings to silence
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#
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#CSILENCE=
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CSILENCE= -Wno-keyword-macro -Wno-unused-macros
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CSILENCE= -Wno-keyword-macro
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# compiler standard
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# Common C compiler warning flags
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#
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#CWARN= ${CSILENCE}
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#CWARN= -Wall ${CSILENCE}
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#CWARN= -Wall -Wextra ${CSILENCE}
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CWARN= -Wall -Wextra -pedantic ${CSILENCE}
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# Compiler standard
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#
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#CSTD=
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#CSTD= -ansi
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#CSTD= -std=c11
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CSTD= -std=c1x
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CSTD= -std=gnu11
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# compiler bit architecture
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# Compiler bit architecture
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#
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# Some entries require 32-bitness:
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# ARCH= -m32
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#
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# Some entries require 64-bitess:
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# Some entries require 64-bitness:
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# ARCH= -m64
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#
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# By default we assume nothing:
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#
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ARCH=
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# defines that are needed to compile
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# Defines that are needed to compile
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#
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#CDEFINE=
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CDEFINE= -DX="$(X)" -DV="$(V)"
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# include files that are needed to compile
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# Include files that are needed to compile
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#
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#CINCLUDE=
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#CINCLUDE= -include stdlib.h
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#CINCLUDE= -include stdio.h
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CINCLUDE= -include "${MACHINE}" -include "${TAPE}"
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#CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
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#CINCLUDE= `${SDL2_CONFIG} --cflags`
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# optimization
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# Optimization
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#
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# Most compiles will safely use -O2. Some can use only -O1 or -O.
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# A few compilers have broken optimizers or this entry make break
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@@ -102,59 +117,95 @@ CINCLUDE= -include "${MACHINE}" -include "${TAPE}"
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#OPT= -O2
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OPT= -O3
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# default flags for ANSI C compilation
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# Default flags for ANSI C compilation
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#
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CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
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CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
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# Libraries needed to build
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#
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LIBS=
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#LIBS= -L ${X11_LIBDIR}
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#LIBS= -lm
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#LIBS= -L ${X11_LIBDIR} -lX11
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#LIBS= `${SDL2_CONFIG} --libs`
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# ANSI compiler
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#
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# Set CC to the name of your ANSI compiler.
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#
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# Some entries seem to need gcc. If you have gcc, set
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# both CC and MAY_NEED_GCC to gcc.
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#
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# If you do not have gcc, set CC to the name of your ANSI compiler, and
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# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
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# to disable such programs.
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# C compiler to use
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#
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CC= cc
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#CC=clang
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MAY_NEED_GCC= gcc
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#CC=gcc
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# Compiler add-ons or replacements for clang only
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#
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ifeq ($(CC),clang)
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#
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CSILENCE+= -Wno-poison-system-directories -Wno-unused-macros
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#
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CWARN+= -Weverything
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#
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endif
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# Specific add-ons or replacements for gcc only
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#
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ifeq ($(CC),gcc)
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#
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#CSILENCE+=
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#
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#CWARN+=
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#
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endif
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##############################
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# Special flags for this entry
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##############################
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#
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ENTRY= prog
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CSRC= ${ENTRY}.c
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OBJ= ${ENTRY}.o
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ENTRY= muth
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PROG= prog
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#
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OBJ= ${PROG}.o
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CSRC= ${PROG}.o
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DATA=
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TARGET= ${PROG}
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#
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ALT_OBJ=
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ALT_ENTRY=
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TARGET= ${ENTRY}
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ALT_TARGET=
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MACHINE = machine_beaver_4_2.h
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TAPE = tape_empty.h
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# entry specific variables
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#
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MACHINE= machine_beaver_4_2.h
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TAPE= tape_empty.h
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MACHINE_SET= machine_beaver_4_2.h machine_champ_2_4.h machine_chaos_5_2.h \
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machine_cmplx_5_2.h machine_count_5_2.h machine_gcd.h machine_great_3_2.h \
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machine_ioccc.h machine_nop.h machine_ru_2_4.h machine_times2.h
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TAPE_SET= tape_15_50.h tape_77_55.h tape_empty.h tape_five.h
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#################
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# build the entry
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#################
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#
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all: ${TARGET} ${DATA}
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all: data ${TARGET} ${MACHINE_SET} ${TAPE_SET}
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@${TRUE}
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${ENTRY}: ${CSRC}
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.PHONY: all alt data everything clean clobber install \
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love haste waste maker easter_egg sandwich \
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supernova deep_magic magic charon pluto
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${PROG}: ${PROG}.c
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${CC} ${CFLAGS} $< -o $@ ${LIBS}
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# test the entry
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#
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.PHONY: run
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run: ${PROG}
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./${PROG} | ${TR} -d '~'
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[ -z "${V}" ] || [ "${V}" -lt 1 ] || { echo "total:" $$(./${PROG} | ${TR} -dc '~' | wc -c) "steps"; }
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[ -z "${V}" ] || [ "${V}" -lt 2 ] || { ./${PROG} | ${GREP} '^~' | ${CUT} -f2 | ${SORT} | ${UNIQ} -c; }
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# alternative executable
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#
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alt: ${ALT_ENTRY}
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alt: data ${ALT_TARGET}
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@${TRUE}
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# data files
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@@ -162,41 +213,51 @@ alt: ${ALT_ENTRY}
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data: ${DATA}
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@${TRUE}
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# test the entry
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# both all and alt
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#
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.PHONY: run
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run: ${ENTRY}
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@ ./${ENTRY} | ${TR} -d '~'
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@ [ -z "${V}" ] || [ "${V}" -lt 1 ] || { echo "total:" $$(./${ENTRY} | ${TR} -dc '~' | wc -c) "steps"; }
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@ [ -z "${V}" ] || [ "${V}" -lt 2 ] || { ./${ENTRY} | ${GREP} '^~' | ${CUT} -f2 | ${SORT} | ${UNIQ} -c; }
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everything: all alt
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###############
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# utility rules
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###############
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#
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everything: all alt
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clean:
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${RM} -f ${OBJ} ${ALT_OBJ}
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@-if [ -f indent.c ]; then \
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echo ${RM} -f indent.c; \
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${RM} -f indent.c; \
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fi
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clobber: clean
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${RM} -f ${TARGET} ${ALT_ENTRY}
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nuke: clobber
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@${TRUE}
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dist_clean: nuke
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@${TRUE}
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${RM} -f ${TARGET} ${ALT_TARGET}
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@-if [ -e sandwich ]; then \
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${RM} -f sandwich; \
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echo 'ate sandwich'; \
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fi
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install:
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@echo "Surely we are joking Dr. May!"
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@echo "Dr. Spock says that is not logical!"
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@${TRUE}
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# backwards compatibility
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# you may be able to misunderstand the source by reading indent.c
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#
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build: all
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@${TRUE}
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indent.c: ${PROG}.c
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@if which "${GINDENT}" >/dev/null 2>&1; then \
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echo ${RM} -f $@; \
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${RM} -f $@; \
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echo "${GINDENT} < $< > $@"; \
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${GINDENT} < $< > $@; \
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elif which "${INDENT}" >/dev/null 2>&1; then \
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echo ${RM} -f $@; \
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${RM} -f $@; \
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echo "${INDENT} < $< > $@"; \
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${INDENT} < $< > $@; \
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else \
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echo "no intent tool found, ident $< yourself, sorry"; \
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echo "exit 1"; \
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exit 1; \
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fi
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##################
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@@ -215,54 +276,69 @@ waste:
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@echo 'haste'
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@${TRUE}
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make:
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@echo 'Attend a maker faire'
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maker:
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@echo 'Participate in a maker faire'
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@${TRUE}
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easter_egg:
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@echo you expected to sometimes mis-understand this $${RANDOM} magic
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@echo chongo '<was here>' "/\\oo/\\"
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@echo Readers shall not be disallowed from not failing to be unable to not partly misunderstand this partocular final echo.
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@echo "you expected to often misunderstand this $${RANDOM} magic"
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@echo "chongo '<was here>' /\\oo/\\"
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@echo "Eggy"
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sandwich: easter_egg
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@if [ `id -u` -eq 0 ]; then \
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echo 'Okay.'; \
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echo "$${RANDOM}`date +%s`$${RANDOM}" > $@; \
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else \
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echo 'What? Make it yourself.'; \
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exit 1; \
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fi
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# Understand the history of the Homebrew Computer Club
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# as well as the West Coast Computer Faire and
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# you might be confused different. :-)
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#
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supernova: nuke
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supernova: sandwich
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@-if [ -r .code_anal ]; then \
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${RM} -f .code_anal_v5; \
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${RM} -f .code_anal_v6; \
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else \
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echo "planet deniers, like the IAU, are amusing"; \
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echo "planet deniers, like some members of the IAU, are so cute when they try to defend their logic"; \
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fi
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@echo A $@ helps ${MAKE} the elements that help form planets
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@echo "A $@ helps ${MAKE} the elements that help form planets"
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@${TRUE}
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deep_magic:
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deep_magic: supernova
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@-if [ -r .code_anal ]; then \
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ccode_analysis --deep_magic 2ed3582ec5c094a093fea2a6bcb9f19439892873c9cc45ed1ceaafe08b7d52e1b2c7cd524be3b0b2 --FNV1a_hash_512_bit "${ENTRY}"; \
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ccode_analysis --deep_magic 7889066cdbdf09b0408021754586e895be641cc9be29e7eafd3ca65359541f17 \
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--FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
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else \
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echo "You are holding it wrong!"; \
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echo "Wrong! Do it again!"; \
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sleep 2; \
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echo "Wrong! Do it again!"; \
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sleep 2; \
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echo "Wrong! Do it again!"; \
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fi
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@${TRUE}
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magic: deep_magic
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@-if [ -r .code_anal ]; then \
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ccode_analysis --mode 216091 --level 216193 --FNV1a_hash_512_bit "${ENTRY}"; \
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ccode_analysis --level 20003 --mode 5717175 --FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
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else \
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echo "These aren't the primes you're looking for Pauline!"; \
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echo "If you don't eat yer meat, you can't have any pudding!"; \
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||||
echo "How can you have any pudding if you don't eat yer meat?!"; \
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||||
fi
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@${TRUE}
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# The IOCCC resident astronomer states
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#
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charon: supernova
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@echo $@ is a dwarf planet
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@echo dwarf is a type of planet
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@echo $@ is a planet
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charon: magic
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@echo "$@ is a dwarf planet"
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@echo "dwarf is a type of planet"
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@echo "therefore IAU, $@ is a planet"
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||||
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pluto: supernova
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||||
pluto: charon
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${MAKE} charon
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||||
@echo $@ is a dwarf planet
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||||
@echo dwarf is a type of planet
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||||
@echo $@ is a planet
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||||
@echo get used to having lots of planets becasue supernovae can ${MAKE} a lot of them
|
||||
@echo "$@ is a dwarf planet"
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||||
@echo "dwarf is a type of planet"
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||||
@echo "therefore, $@ is a planet"
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||||
@echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them"
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||||
+28
-19
@@ -1,33 +1,43 @@
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# Most Complete Use of CPP
|
||||
|
||||
Dominik Muth <muth.ioccc@freenet.de>
|
||||
Dominik Muth
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||||
<muth.ioccc@freenet.de>
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||||
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||||
# To build:
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||||
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||||
## Judges' comments:
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||||
### To use:
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||||
```sh
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make
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||||
```
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||||
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make -B [MACHINE=your_machine.h] [TAPE=your_tape.h] [X=[0|1|2|3|4|5|6|7|8|9]] [V=[0|1|2]] run
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### To run:
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||||
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||||
```sh
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||||
make -B [MACHINE=your_machine.h] [TAPE=your_tape.h] [X=[0|1|2|3|4|5|6|7|8|9]] [V=[0|1|2]] run
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||||
```
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||||
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||||
### Try:
|
||||
|
||||
make -B V=2 run
|
||||
```sh
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||||
make -B V=2 run
|
||||
|
||||
strings prog | grep '(,)'
|
||||
strings prog | grep '(,)'
|
||||
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||||
make -B MACHINE=machine_times2.h TAPE=tape_five.h V=1 run
|
||||
make -B MACHINE=machine_times2.h TAPE=tape_five.h V=1 run
|
||||
|
||||
make -B MACHINE=machine_chaos_5_2.h X=5 run
|
||||
make -B MACHINE=machine_chaos_5_2.h X=5 run
|
||||
```
|
||||
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||||
### Selected Judges Remarks:
|
||||
## Judges' comments:
|
||||
|
||||
This is something we were fearing all along: that the C preprocessor is Turing-complete
|
||||
even without conditionals and recursive file inclusion as some kind of a
|
||||
[rewriting system](https://en.wikipedia.org/wiki/Rewriting). Now we have the proof!
|
||||
|
||||
## Author's comments:
|
||||
|
||||
### Preprocessor Turing Engine
|
||||
|
||||
#### Features
|
||||
### Features
|
||||
|
||||
- Turing machine runs in preprocessor
|
||||
- universal (unlimited configurable states, symbols, and tape)
|
||||
@@ -42,19 +52,19 @@ even without conditionals and recursive file inclusion as some kind of a
|
||||
- make target `run` runs `./prog` and filters a little statistics out of the verbose output
|
||||
- `X` (defaults to 3) sets the maximum number of steps: *M*(`X`) ~ 8<sup>`X`</sup>
|
||||
|
||||
#### Limitations
|
||||
### Limitations
|
||||
|
||||
If the machine does not halt after *M*(`X`) steps, you will see unexpanded macros in the output.
|
||||
|
||||
#### Compiler warnings
|
||||
### Compiler warnings
|
||||
|
||||
If `V=1` or `V=2` is used, you may see "`warning: string length is greater than the length '4095' ISO C99 compilers are required to support`".
|
||||
|
||||
#### Programming
|
||||
### Programming
|
||||
|
||||
Implementing your own Turing machine is easy. Take a look at the supplied header files for examples.
|
||||
|
||||
##### Tape Symbols
|
||||
#### Tape Symbols
|
||||
|
||||
Every symbol used (except "`_`") must be explicitly declared using
|
||||
|
||||
@@ -64,7 +74,7 @@ Example:
|
||||
|
||||
#define sym_1(sym, _1) sym
|
||||
|
||||
##### Tape
|
||||
#### Tape
|
||||
|
||||
The initial content of the tape must be defined in the tape header using a triple like:
|
||||
|
||||
@@ -76,7 +86,7 @@ The initial content of the tape must be defined in the tape header using a tripl
|
||||
|
||||
The empty pairs "`(,)`" represent the continuations of the tape, filled with underscore symbols ("`_`"). They are expanded on demand.
|
||||
|
||||
##### State Machine
|
||||
#### State Machine
|
||||
|
||||
All transitions are defined in the machine header using the syntax
|
||||
|
||||
@@ -97,11 +107,10 @@ To halt the machine, use the keyword "`break`" as in
|
||||
|
||||
#define A_1 (2, break)
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
<!--
|
||||
## Copyright:
|
||||
|
||||
(c) Copyright 1984-2016, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
|
||||
This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
|
||||
|
||||
[judges]: http://www.ioccc.org/judges.html
|
||||
[cc]: http://creativecommons.org/licenses/by-sa/3.0/
|
||||
-->
|
||||
Reference in new issue
Block a user