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fix Makefile and README.md for 2019/poikola

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Landon Curt Noll committed 2023-03-25 04:18:28 -07:00
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2019/poikola/Makefile
+142 -340
View File
@@ -1,14 +1,41 @@
#!/usr/bin/env make #!/usr/bin/env make
# #
# 2019 makefile # IOCCC 2019 winning entry - poikola
################################################################################
# #
# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis # Regarding individual entries:
# is licensed under: #
# IOCCC winning entry code may not work on your system. Even with standards,
# conditions and build environments change, especially when it comes to more
# extreme code such you might find in an IOCCC winner. Moreover, what was
# allowed and liked in one IOCCC contest may no longer be liked/allowed in
# later IOCCC years.
#
# Corrections on winning author and fixing typos in remarks are VERY WELCOME.
#
# GitHub pull requests are welcome:
#
# If you have a patch that might make running an entry work in modern Unix-like
# environments, please create a GitHub pull request for the IOCCC judges to
# consider.
#
# Suggestions and corrections regarding Makefiles, winning author information,
# fixing typos in remarks, and code patches are welcome via opening a GitHub
# issue or better yet, by creating a GitHub pull request for the IOCCC judges
# to consider. To form a GitHub issue or GitHub pull, please visit:
#
# https://github.com/ioccc-src/winner
#
################################################################################
# This work by Landon Curt Noll and Leonid A. Broukhis is licensed under:
# #
# Creative Commons Attribution-ShareAlike 3.0 Unported License. # Creative Commons Attribution-ShareAlike 3.0 Unported License.
# #
# See: http://creativecommons.org/licenses/by-sa/3.0/ # See: http://creativecommons.org/licenses/by-sa/3.0/
############################# #############################
# shell used by this Makefile # shell used by this Makefile
############################# #############################
@@ -19,262 +46,7 @@ SHELL= bash
# common tool locations # common tool locations
####################### #######################
# #
A2P= a2p include ../../var.mk
AR= ar
ASA= asa
AT= at
ATQ= atq
ATRM= atrm
AWK= awk
BANNER= banner
BASE64= base64
BASENAME= basename
BATCH= batch
BC= bc
BINHEX= binhex
BISON= bison
BUNZIP2= bunzip2
BZCAT= bzcat
BZCMP= bzcmp
BZDIFF= bzdiff
BZEGREP= bzegrep
BZFGREP= bzfgrep
BZGREP= bzgrep
BZIP2= bzip2
BZLESS= bzless
BZMORE= bzmore
C2PH= c2ph
C89= c89
C99= c99
CAL= cal
CALC= calc
CAT= cat
CD= cd
CHFLAGS= chflags
CHGRP= chgrp
CHMOD= chmod
CKSUM= cksum
CLANG= clang
CLANG_PLUSPLUS= clang++
CLEAR= clear
CMP= cmp
COL= col
COLLDEF= colldef
COLRM= colrm
COLUMN= column
COMPRESS= compress
CP= cp
CPIO= cpio
CPP= cpp
CRC32= crc32
CSH= csh
CSPLIT= csplit
CURL= curl
CUT= cut
C_PLUSPLUS= c++
C_PLUSPLUS_FILT= c++filt
DATE= date
DC= dc
DD= dd
DF= df
DIFF3= diff3
DIFF= diff
DIG= dig
DIRNAME= dirname
ED= ed
EGREP= egrep
ENV= env
EQN= eqn
ETAGS= etags
EXPECT= expect
EXPR= expr
FALSE= false
FGREP= fgrep
FILE= file
FIND2PERL= find2perl
FIND= find
FLEX= flex
FLEX_PLUSPLUS= flex++
FMT= fmt
FOLD= fold
FS_USAGE= fs_usage
FUNZIP= funzip
FUSER= fuser
GCC= gcc
GDIFFMK= gdiffmk
GENCAT= gencat
GENSTRINGS= genstrings
GETOPT= getopt
GETOPTS= getopts
GNUMAKE= gnumake
GREP= grep
GROFF= groff
GROFFER= groffer
GROG= grog
GROPS= grops
GROTTY= grotty
GUNZIP= gunzip
GVIM= gvim
GZCAT= gzcat
GZEXE= gzexe
GZIP_PROG= gzip
G_PLUSPLUS= g++
H2PH= h2ph
H2XS= h2xs
HASH= hash
HEAD= head
HOSTNAME_PROG= hostname
ICONV= iconv
ID= id
INDENT= indent
INFO= info
JOT= jot
KILL= kill
KSH= ksh
LAST= last
LD= ld
LEX= len
LINK= link
LN= ln
LS= ls
M4= m4
MAKE= make
MAN= man
MKDIR= mkdir
MKFIFO= mkfifo
MKTEMP= mktemp
MV= mv
NANO= nano
NASM= nasm
NEQN= neqn
NICE= nice
NL= nl
NM= nm
NOHUP= nohup
NROFF= nroff
NSLOOKUP= nslookup
OD= od
OPENSSL= openssl
PASTE= paste
PATCH= patch
PATHCHK= pathchk
PAX= pax
PERL= perl
PICO= pico
PR= pr
PRINTENV= printenv
PS= ps
PTAR= ptar
PTARDIFF= ptardiff
PTARGREP= ptargrep
PWD= pwd
PYDOC= pydoc
PYTHON= python
PYTHONW= pythonw
READLINK= readlink
RENICE= renice
RESET= reset
REV= rev
RI= ri
RM= rm
RMDIR= rmdir
RSYNC= rsync
RUBY= ruby
RVIM= rvim
SAY= say
SCP= scp
SCREEN= screen
SCRIPT= script
SDIFF= sdiff
SED= sed
SEQ= seq
SFTP= sftp
SH= sh
SHA1= sha1
SHA= sha
SHAR= shar
SHASUM5_18= shasum5.18
SHASUM= shasum
SIZE= size
SLEEP= sleep
SORT= sort
SSH= ssh
STAT= stat
STRIP= strip
STTY= stty
SUM= sum
SYNC= sync
TABS= tabs
TAIL= tail
TAR= tar
TEE= tee
TEST= test
TFTP= tftp
TIDY= tidy
TIME= time
TOP= top
TOUCH= touch
TPUT= tout
TPUT= tput
TR= tr
TROFF= troff
TRUE= true
TSET= tset
TSORT= tsort
UL= ul
UNAME= uname
UNCOMPRESS= uncompress
UNEXPAND= unexpand
UNIFDEF= unifdef
UNIFDEFALL= unifdefall
UNIQ= uniq
UNITS= units
UNLINK= unlink
UNZIP= unzip
UNZIPSFX= unzipsfx
UPTIME= uptime
UUDECODE= uudecode
UUENCODE= uuencode
UUIDGEN= uuidgen
VI= vi
VIEW= view
VIM= vim
VIMDIFF= vimdiff
W= w
WAIT4PATH= wait4path
WAIT= wait
WC= wc
WHAT= what
WHATIS= whatis
WHICH= which
WHO= who
WHOAMI= whoami
WHOIS= whois
WRTIE= write
XAR= xar
XARGS= xargs
XATTR= xattr
XXD= xxd
YACC= yacc
YES= yes
ZCAT= zcat
ZCMP= zcmp
ZDIFF= zdiff
ZEGREP= zegrep
ZFGREP= zfgrep
ZFORCE= zforce
ZGREP= zgrep
ZIP= zip
ZIPCLOAK= zipcloak
ZIPGREP= zipgrep
ZIPINFO= zipinfo
ZIPNOTE= zipnote
ZIPSPLIT= zipsplit
ZLESS= zless
ZMORE= zmore
ZNEW= znew
ZPRINT= zprint
ZSH= zsh
# Set X11_LIBDIR to the directory where the X11 library resides # Set X11_LIBDIR to the directory where the X11 library resides
# #
@@ -288,30 +60,26 @@ X11_LIBDIR= /opt/X11/lib
#X11_INCDIR= /usr/X11/include #X11_INCDIR= /usr/X11/include
X11_INCDIR= /opt/X11/include X11_INCDIR= /opt/X11/include
# Compiler warnings # Common C compiler warnings to silence
#
#CWARN=
#CWARN= -Wall
#CWARN= -Wall -Wextra
CWARN= -Wall -Wextra -pedantic ${CSILENCE}
#CWARN= -Wall -Wextra -Weverything
#CWARN= -Wall -Wextra -Weverything -pedantic
#CWARN= -Wall -Wextra -Weverything -pedantic ${CSILENCE}
# Silence warnings that ${CWARN} would normally complain about
# #
#CSILENCE= #CSILENCE=
#CSILENCE= -Wno-implicit-int CSILENCE= -Wno-dollar-in-identifier-extension -Wno-empty-body -Wno-gnu-label-as-value \
CSILENCE= -Wno-gnu-label-as-value -Wno-sign-compare -Wno-unsequenced \ -Wno-sign-compare -Wno-sometimes-uninitialized -Wno-unsequenced
-Wno-dollar-in-identifier-extension -Wno-sometimes-uninitialized
# compiler standard # Common C compiler warning flags
#
#CWARN= ${CSILENCE}
#CWARN= -Wall ${CSILENCE}
#CWARN= -Wall -Wextra ${CSILENCE}
CWARN= -Wall -Wextra -pedantic ${CSILENCE}
# Compiler standard
# #
#CSTD= #CSTD=
#CSTD= -ansi #CSTD= -ansi
CSTD= -std=c11 CSTD= -std=gnu17
# compiler bit architecture # Compiler bit architecture
# #
# Some entries require 32-bitness: # Some entries require 32-bitness:
# ARCH= -m32 # ARCH= -m32
@@ -323,20 +91,21 @@ CSTD= -std=c11
# #
ARCH= ARCH=
# defines that are needed to compile # Defines that are needed to compile
# #
CDEFINE= CDEFINE=
#CDEFINE= -DIOCCC=26 #CDEFINE= -DIOCCC
# include files that are needed to compile # Include files that are needed to compile
# #
CINCLUDE= CINCLUDE=
#CINCLUDE= -include stdlib.h #CINCLUDE= -include stdlib.h
#CINCLUDE= -include stdio.h #CINCLUDE= -include stdio.h
#CINCLUDE= -include stdlib.h -include stdio.h #CINCLUDE= -include stdlib.h -include stdio.h
#CINCLUDE= -I ${X11_INCDIR} #CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
#CINCLUDE= `${SDL2_CONFIG} --cflags`
# optimization # Optimization
# #
# Most compiles will safely use -O2. Some can use only -O1 or -O. # Most compiles will safely use -O2. Some can use only -O1 or -O.
# A few compilers have broken optimizers or this entry make break # A few compilers have broken optimizers or this entry make break
@@ -349,56 +118,80 @@ CINCLUDE=
#OPT= -O2 #OPT= -O2
OPT= -O3 OPT= -O3
# default flags for ANSI C compilation # Default flags for ANSI C compilation
# #
CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT} CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
# Libraries needed to build # Libraries needed to build
# #
LIBS= LIBS=
#LIBS= -L ${X11_LIBDIR} #LIBS= -lm
#LIBS= -L ${X11_LIBDIR} -lX11
#LIBS= `${SDL2_CONFIG} --libs`
# ANSI compiler # C compiler to use
#
# Set CC to the name of your ANSI compiler.
#
# Some entries seem to need gcc. If you have gcc, set
# both CC and MAY_NEED_GCC to gcc.
#
# If you do not have gcc, set CC to the name of your ANSI compiler, and
# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
# to disable such programs.
# #
CC= cc CC= cc
#CC=clang #CC=clang
MAY_NEED_GCC= gcc #CC=gcc
# Compiler add-ons or replacements for clang only
#
ifeq ($(CC),clang)
#
CSILENCE+= -Wno-comma -Wno-conditional-uninitialized -Wno-date-time \
-Wno-implicit-int-conversion -Wno-missing-variable-declarations \
-Wno-poison-system-directories -Wno-shorten-64-to-32 -Wno-sign-conversion \
-Wno-unreachable-code
#
CWARN+= -Weverything
#
endif
# Specific add-ons or replacements for gcc only
#
ifeq ($(CC),gcc)
#
#CSILENCE+=
#
#CWARN+=
#
endif
############################## ##############################
# Special flags for this entry # Special flags for this entry
############################## ##############################
# #
OBJ= prog.o ENTRY= poikola
DATA= PROG= prog
TARGET= prog #
OBJ= ${PROG}.o
CSRC= ${PROG}.o
DATA= poikola.tex
TARGET= ${PROG}
# #
ALT_OBJ= ALT_OBJ=
ALT_TARGET= ALT_TARGET=
DOCS= poikola.tex
################# #################
# build the entry # build the entry
################# #################
# #
all: ${TARGET} ${DATA} all: data ${TARGET}
@${TRUE} @${TRUE}
prog: prog.c .PHONY: all alt data everything clean clobber install \
love haste waste maker easter_egg sandwich \
supernova deep_magic magic charon pluto
${PROG}: ${PROG}.c
${CC} ${CFLAGS} $< -o $@ ${LIBS} ${CC} ${CFLAGS} $< -o $@ ${LIBS}
# alternative executable # alternative executable
# #
alt: ${ALT_TARGET} alt: data ${ALT_TARGET}
@${TRUE} @${TRUE}
# data files # data files
@@ -406,17 +199,21 @@ alt: ${ALT_TARGET}
data: ${DATA} data: ${DATA}
@${TRUE} @${TRUE}
docs: ${DOCS} # both all and alt
pdflatex ${DOCS} #
everything: all alt
############### ###############
# utility rules # utility rules
############### ###############
# #
everything: all alt
clean: clean:
${RM} -f ${OBJ} ${ALT_OBJ} ${RM} -f ${OBJ} ${ALT_OBJ}
@-if [ -f indent.c ]; then \
echo ${RM} -f indent.c; \
${RM} -f indent.c; \
fi
clobber: clean clobber: clean
${RM} -f ${TARGET} ${ALT_TARGET} ${RM} -f ${TARGET} ${ALT_TARGET}
@@ -425,20 +222,28 @@ clobber: clean
echo 'ate sandwich'; \ echo 'ate sandwich'; \
fi fi
nuke: clobber
@${TRUE}
dist_clean: nuke
@${TRUE}
install: install:
@echo "Surely you are performing, Dr. May!" @echo "Dr. Spock says that is not logical!"
@${TRUE} @${TRUE}
# backwards compatibility # you may be able to misunderstand the source by reading indent.c
# #
build: all indent.c: ${PROG}.c
@${TRUE} @if which "${GINDENT}" >/dev/null 2>&1; then \
echo ${RM} -f $@; \
${RM} -f $@; \
echo "${GINDENT} < $< > $@"; \
${GINDENT} < $< > $@; \
elif which "${INDENT}" >/dev/null 2>&1; then \
echo ${RM} -f $@; \
${RM} -f $@; \
echo "${INDENT} < $< > $@"; \
${INDENT} < $< > $@; \
else \
echo "no intent tool found, ident $< yourself, sorry"; \
echo "exit 1"; \
exit 1; \
fi
################## ##################
@@ -457,22 +262,19 @@ waste:
@echo 'haste' @echo 'haste'
@${TRUE} @${TRUE}
make: maker:
@echo 'Attend a maker faire' @echo 'Participate in a maker faire'
@${TRUE} @${TRUE}
easter_egg: easter_egg:
@echo you expected to often mis-understand this $${RANDOM} magic @echo "you expected to often misunderstand this $${RANDOM} magic"
@echo chongo '<was here>' "/\\oo/\\" @echo "chongo '<was here>' /\\oo/\\"
@echo Eggy @echo "Eggy"
fabricate fashion form frame manufacture produce: make sandwich: easter_egg
@${TRUE}
sandwich:
@if [ `id -u` -eq 0 ]; then \ @if [ `id -u` -eq 0 ]; then \
echo 'Okay.'; \ echo 'Okay.'; \
echo $${RANDOM}`date +%s`$${RANDOM} > $@; \ echo "$${RANDOM}`date +%s`$${RANDOM}" > $@; \
else \ else \
echo 'What? Make it yourself.'; \ echo 'What? Make it yourself.'; \
exit 1; \ exit 1; \
@@ -482,18 +284,19 @@ sandwich:
# as well as the West Coast Computer Faire and # as well as the West Coast Computer Faire and
# you might be confused different. :-) # you might be confused different. :-)
# #
supernova: nuke supernova: sandwich
@-if [ -r .code_anal ]; then \ @-if [ -r .code_anal ]; then \
${RM} -f .code_anal_v6; \ ${RM} -f .code_anal_v6; \
else \ else \
echo "planet deniers, like some members of the IAU, are so cute when they try to defend their logic"; \ echo "planet deniers, like some members of the IAU, are so cute when they try to defend their logic"; \
fi fi
@echo A $@ helps ${MAKE} the elements that help form planets @echo "A $@ helps ${MAKE} the elements that help form planets"
@${TRUE} @${TRUE}
deep_magic: deep_magic: supernova
@-if [ -r .code_anal ]; then \ @-if [ -r .code_anal ]; then \
ccode_analysis --deep_magic fc6b6af226b7cc598de3d48fc20ed0bd54f7b4f7f0f651a32b9cf8345b2a3b3f --FNV1a_hash_512_bit "prog"; \ ccode_analysis --deep_magic 7889066cdbdf09b0408021754586e895be641cc9be29e7eafd3ca65359541f17 \
--FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
else \ else \
echo "Wrong! Do it again!"; \ echo "Wrong! Do it again!"; \
sleep 2; \ sleep 2; \
@@ -505,7 +308,7 @@ deep_magic:
magic: deep_magic magic: deep_magic
@-if [ -r .code_anal ]; then \ @-if [ -r .code_anal ]; then \
ccode_analysis --level 391581 --mode 216193 --FNV1a_hash_512_bit "prog"; \ ccode_analysis --level 20003 --mode 5717175 --FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
else \ else \
echo "If you don't eat yer meat, you can't have any pudding!"; \ echo "If you don't eat yer meat, you can't have any pudding!"; \
echo "How can you have any pudding if you don't eat yer meat?!"; \ echo "How can you have any pudding if you don't eat yer meat?!"; \
@@ -514,15 +317,14 @@ magic: deep_magic
# The IOCCC resident astronomer states # The IOCCC resident astronomer states
# #
charon: supernova charon: magic
@echo $@ is a dwarf planet @echo "$@ is a dwarf planet"
@echo dwarf is a type of planet @echo "dwarf is a type of planet"
@echo therefore IAU, $@ is a planet @echo "therefore IAU, $@ is a planet"
pluto: supernova pluto: charon
${MAKE} charon ${MAKE} charon
@echo $@ is a dwarf planet @echo "$@ is a dwarf planet"
@echo dwarf is a type of planet @echo "dwarf is a type of planet"
@echo therefore, $@ is a planet @echo "therefore, $@ is a planet"
@echo get used to having lots of planets becasue supernovae can ${MAKE} a lot of them @echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them"
2019/poikola/README.md
+52 -30
View File
@@ -1,33 +1,40 @@
# Most calendrical # Most calendrical
Timo Poikola Timo Poikola
<https://ig.fi/other/ioccc> <https://ig.fi/other/ioccc>
Twitter: @timpoiko Twitter: @timpoiko
# To build:
## Judges' comments: ```sh
### To use: make
```
make prog ### To run:
./prog 512 ./prog
sleep 86400; make clobber prog ```sh
./prog 512 ./prog ./prog 512 ./prog
sleep 86400; make clobber prog sleep 86400; make clobber prog
./prog 512 ./prog ./prog 512 ./prog
sleep 86400; make clobber prog
./prog 512 ./prog
```
### Try: ### Try:
If you don't have a few days, try: If you don't have a few days, try:
TZ=UTC24 make clobber prog ```sh
./prog 512 ./prog TZ=UTC24 make clobber prog
./prog 512 ./prog
TZ=UTC48 make clobber prog TZ=UTC48 make clobber prog
./prog 512 ./prog ./prog 512 ./prog
```
### Selected Judges Remarks: ## Judges' comments:
Do you have the time to see what this program does? Think again, come back and try again. Do you have the time to see what this program does? Think again, come back and try again.
@@ -38,22 +45,31 @@ The source code layout and some of the variable names honors the ski jumping acc
[Matti Nyk&auml;nen](https://en.wikipedia.org/wiki/Matti_Nyk%C3%A4nen). [Matti Nyk&auml;nen](https://en.wikipedia.org/wiki/Matti_Nyk%C3%A4nen).
## Author's comments: ## Author's comments:
### How to build ###
gcc -O0 -o prog prog.c ### How to build
```sh
gcc -O0 -o prog prog.c
```
or or
clang -O[0123s] -o prog prog.c ```sh
clang -O[0123s] -o prog prog.c
```
e.g.: e.g.:
clang -O1 -o prog prog.c ```sh
clang -O1 -o prog prog.c
```
### Poster ### Poster
You can generate an A3 sized poster by _make docs_. This command creates a pdf file _poikola.pdf_. You can generate an A3 sized poster by _make docs_. This command creates a pdf file _poikola.pdf_.
### What this entry does ### ### What this entry does
An old wise man mumbled to me: An old wise man mumbled to me:
>Implement a program, which can calculate SHA-3 checksum for a file >Implement a program, which can calculate SHA-3 checksum for a file
@@ -67,7 +83,8 @@ the all-time best [ski jumper](https://en.wikipedia.org/wiki/Matti_Nyk%C3%A4nen)
[amateur philosopher](http://telefinn.blogspot.com/2011/11/matti-nykanen-quotes.html), who passed away on fourth of [amateur philosopher](http://telefinn.blogspot.com/2011/11/matti-nykanen-quotes.html), who passed away on fourth of
February 2019. February 2019.
####Oh boys. ### Oh boys.
So, I followed the rules given by Gandalf the White and the Judges of IOCCC. Output of `iocccsize`, So, I followed the rules given by Gandalf the White and the Judges of IOCCC. Output of `iocccsize`,
using the [2019 version of iocccsize](https://www.ioccc.org/2019/iocccsize.c), is carefully selected. using the [2019 version of iocccsize](https://www.ioccc.org/2019/iocccsize.c), is carefully selected.
For the sake of clarity, I used single letter variables in the code. I also avoided unnecessary use of functions. For the sake of clarity, I used single letter variables in the code. I also avoided unnecessary use of functions.
@@ -80,7 +97,8 @@ stuck if invoked erroneously. The program is invoked in this way: ./prog `<integ
not validate its input in any way. These same parameters should be given in calculating a Fibonacci sequence or prime not validate its input in any way. These same parameters should be given in calculating a Fibonacci sequence or prime
numbers. *Please note that maximum file size is one gigabyte.* numbers. *Please note that maximum file size is one gigabyte.*
### Obfuscation ### ### Obfuscation
*Matti Nyk&auml;nen*: Every time I jump, and I get that feeling of _bon voyage_, the feeling that I&#8217;ve been here *Matti Nyk&auml;nen*: Every time I jump, and I get that feeling of _bon voyage_, the feeling that I&#8217;ve been here
before. before.
@@ -92,6 +110,7 @@ used as labels, however, there is `lahti` instead of <tt style="font-family: Mon
12px;">salpausselk&auml;</tt>. 12px;">salpausselk&auml;</tt>.
### SHA-3-512 Compatibility chart ### ### SHA-3-512 Compatibility chart ###
Tested against [test vectors](https://www.di-mgt.com.au/sha_testvectors.html). Tested against [test vectors](https://www.di-mgt.com.au/sha_testvectors.html).
Clang-4.0: For optimization levels [0123s], the program compiles and produces correct output for every tested vector using Clang-4.0: For optimization levels [0123s], the program compiles and produces correct output for every tested vector using
c11, c89, c90, c99, gnu11, gnu1x, gnu89, gnu90, gnu99, iso9899:1990, iso9899:199409, iso9899:1999 and c11, c89, c90, c99, gnu11, gnu1x, gnu89, gnu90, gnu99, iso9899:1990, iso9899:199409, iso9899:1999 and
@@ -100,15 +119,18 @@ iso9899:2011 as argument of `-std=`
Gcc-6: For optimization level 0, correct output using Gcc-6: For optimization level 0, correct output using
c11, c99, gnu11, gnu1x, gnu89, gnu90, gnu99, iso9899:1999 and iso9899:2011 c11, c99, gnu11, gnu1x, gnu89, gnu90, gnu99, iso9899:1999 and iso9899:2011
### Missing a prime ### ### Missing a prime
For obvious reason, the oddest prime is missing from output. For obvious reason, the oddest prime is missing from output.
### Observations ### ### Observations
Gcc and clang are very fragile compilers. I spent numerous hours trying to achieve exactly the same output from Gcc and clang are very fragile compilers. I spent numerous hours trying to achieve exactly the same output from
different optimization levels and compilers. Small change in code can produce really unexpected results, i.e. the compiler different optimization levels and compilers. Small change in code can produce really unexpected results, i.e. the compiler
can skip a few expressions or statements without obvious reason. can skip a few expressions or statements without obvious reason.
### Major spoilers ### ### Major spoilers
Please scroll down if you want to see spoilers. Please scroll down if you want to see spoilers.
<div style="margin-bottom:61em;">&nbsp;</div> <div style="margin-bottom:61em;">&nbsp;</div>
It is commonly believed that [Mike Keith's algorithm](http://www.cadaeic.net/calendar.htm) published in _Journal of It is commonly believed that [Mike Keith's algorithm](http://www.cadaeic.net/calendar.htm) published in _Journal of
@@ -127,7 +149,8 @@ that value of '^' is 94 in ASCII table.
For prime calculations: I recycled code from my high school C-programming course. Originally, I wrote it over 20 years For prime calculations: I recycled code from my high school C-programming course. Originally, I wrote it over 20 years
ago. My teacher said that it is (too) complicated to use bits stored in arrays, so I did it. ago. My teacher said that it is (too) complicated to use bits stored in arrays, so I did it.
### Other stuff ### ### Other stuff
Cody: I really like that you enjoyed my previous entry. I hope that you will like this entry too. Cody: I really like that you enjoyed my previous entry. I hope that you will like this entry too.
Because I did not want to give too many clues to Judges, I tried to write this entry in a different way Because I did not want to give too many clues to Judges, I tried to write this entry in a different way
than Most Stellar, but in this code there is at least one recycled thing from it. By the way, than Most Stellar, but in this code there is at least one recycled thing from it. By the way,
@@ -144,11 +167,10 @@ I realized that SHA-3 even with 224-bit output could take too much CPU time.
I would like to say _thanks_ to PSP, because there were not too much interrupts during the coding phase. I would like to say _thanks_ to PSP, because there were not too much interrupts during the coding phase.
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