GnuCOBOL FAQ

• 1 GnuCOBOL FAQ
  • 1.1 What is GnuCOBOL?
  • 1.2 What is COBOL?
  • 1.3 How is GnuCOBOL licensed?
  • 1.4 What platforms are supported by GnuCOBOL?
  • 1.5 Are there pre-built GnuCOBOL packages?
    • 1.5.1 repology
    • 1.5.2 kiska.net repository
    • 1.5.3 sourceforge
    • 1.5.4 Windows™ MinGW
      • 1.5.4.1 Older cuts
    • 1.5.5 MinGW official
    • 1.5.6 Windows™ Visual Studio vc11 native
    • 1.5.7 Mario’s file pile
    • 1.5.8 Online compilers
  • 1.6 What is the most recent version of GnuCOBOL?
  • 1.7 How complete is GnuCOBOL?
  • 1.8 Will I be amazed by GnuCOBOL?
  • 1.9 Who do I thank for GnuCOBOL?
  • 1.10 Does GnuCOBOL include a Test Suite?
    • 1.10.1 Educational benefits of the test suite
  • 1.11 Does GnuCOBOL pass the NIST Test Suite?
    • 1.11.1 What’s missing?
  • 1.12 What about GnuCOBOL and benchmarks?
    • 1.12.1 telco billing
      • 1.12.1.1 Roger’s telco benchmark update
  • 1.13 Can GnuCOBOL be used for CGI?
    • 1.13.1 GnuCOBOL with FastCGI
    • 1.13.2 FastCGI without changing #includes
    • 1.13.3 running on hosted services
  • 1.14 Does GnuCOBOL support a GUI?
    • 1.14.1 GTK
    • 1.14.2 A GTK server
    • 1.14.3 Tcl/Tk
    • 1.14.4 Vala, WebKit
    • 1.14.5 Redirect to browser
    • 1.14.6 X11
    • 1.14.7 Java AWT
    • 1.14.8 XForms
    • 1.14.9 Agar
  • 1.15 Does GnuCOBOL have an IDE?
    • 1.15.1 Gix-IDE
    • 1.15.2 OpenCOBOLIDE
    • 1.15.3 Geany
  • 1.16 Can GnuCOBOL be used for production applications?
    • 1.16.1 FAQ author’s take on it
    • 1.16.2 Nagasaki Prefecture
    • 1.16.3 Stories from Currey Adkins
    • 1.16.4 Public Accounting
    • 1.16.5 ACAS
    • 1.16.6 A platform port
    • 1.16.7 The COBJAPI angle
    • 1.16.8 A thank-you note
    • 1.16.9 Commercial Support
  • 1.17 Where can I get more information about COBOL?
    • 1.17.1 COBOL programming examples
    • 1.17.2 COBOL Programming Course
    • 1.17.3 Up and Running with COBOL
    • 1.17.4 jaymoseley.com
    • 1.17.5 tutorialspoint.com
    • 1.17.6 newcobug.com
    • 1.17.7 SimoTime Technologies
  • 1.18 Where can I get more information about GnuCOBOL?
    • 1.18.1 The GnuCOBOL Programmer’s Guide
    • 1.18.2 The OpenCobol Programmer’s Guide
  • 1.19 Can I help out with the GnuCOBOL project?
    • 1.19.1 Contribution Guidelines
    • 1.19.2 Translation Efforts
  • 1.20 Is there a GnuCOBOL mailing list?
  • 1.21 Where can I find more information about COBOL standards?
  • 1.22 Can I see the GnuCOBOL source codes?
    • 1.22.1 A ROBODoc experiment
    • 1.22.2 A Doxygen pass across the compiler source code
    • 1.22.3 A Doxygen pass, application with compiler suite
    • 1.22.4 What was used to colour the source code listings?
  • 1.23 What happened to opencobol.org?
  • 1.24 What is COBOL in Latin?
  • 1.25 Where can I find open COBOL source code?
    • 1.25.1 At GNU
    • 1.25.2 on SourceForge
    • 1.25.3 add1tocobol
    • 1.25.4 Stickleback
    • 1.25.5 other places
  • 1.26 What is bubble-generator?
  • 1.27 Is COBOL dead?
  • 1.28 Do you know any good jokes?
    • 1.28.1 Really?
    • 1.28.2 A 5-7-5 haiku?
    • 1.28.3 One in cbrain
• 2 History
  • 2.1 What is the history of COBOL?
    • 2.1.1 Published Standards
    • 2.1.2 The Gartner estimate
  • 2.2 What are the Official COBOL Standards?
    • 2.2.1 COBOL 2014
  • 2.3 What is the development history of GnuCOBOL?
  • 2.4 What is the current version of GnuCOBOL?
    • 2.4.1 Building the 2.2 stable release
    • 2.4.2 Building from trunk
    • 2.4.3 Building the 2.2 stable version
    • 2.4.4 Building GnuCOBOL 3.0 release candidates
    • 2.4.5 occurlrefresh
    • 2.4.6 Building the reportwriter version
  • 2.5 What is the future of COBOL?
• 3 Using GnuCOBOL
  • 3.1 How do I install GnuCOBOL?
    • 3.1.1 From source with GNU/Linux
    • 3.1.2 Debian
    • 3.1.3 Ubuntu
    • 3.1.4 Fedora
    • 3.1.5 Windows
      • 3.1.5.1 Older news, pre 2020
    • 3.1.6 Macintosh
      • 3.1.6.1 homebrew
    • 3.1.7 CentOS
    • 3.1.8 MINIX
  • 3.2 What are the configure options available for building GnuCOBOL?
    • 3.2.1 GnuCOBOL build time environment variables
  • 3.3 Does GnuCOBOL have any other dependencies?
  • 3.4 How does the GnuCOBOL compiler work?
    • 3.4.1 Example of GnuCOBOL stages
    • 3.4.2 Original source code
    • 3.4.3 Preprocess
    • 3.4.4 Translate
    • 3.4.5 hello.c.h
    • 3.4.6 hello.c
    • 3.4.7 Generate assembler
    • 3.4.8 hello.s
    • 3.4.9 Produce object code
    • 3.4.10 Build modules
    • 3.4.11 Module run
    • 3.4.12 Create executable
    • 3.4.13 Run job
    • 3.4.14 Interpreter directive
    • 3.4.15 sizes for hello on Fedora 16
  • 3.5 What is cobc?
  • 3.6 What is cobcrun?
    • 3.6.1 path and module
  • 3.7 What is cob-config?
  • 3.8 What compiler options are supported?
    • 3.8.1 For 2.0 that becomes
    • 3.8.2 For reportwriter that becomes
    • 3.8.3 And with 3.0-rc
    • 3.8.4 A note on -A and -Q
  • 3.9 What dialects are supported by GnuCOBOL?
    • 3.9.1 Supported Literal values
  • 3.10 What extensions are used if cobc is called with/without “-ext” for COPY?
  • 3.11 What are the GnuCOBOL compile time configuration files?
    • 3.11.1 reportwriter default.conf
    • 3.11.2 differences with ibm.conf
  • 3.12 Does GnuCOBOL work with make?
  • 3.13 Do you have a reasonable source code skeleton for GnuCOBOL?
  • 3.14 Can GnuCOBOL be used to write command line stdin, stdout filters?
    • 3.14.1 CBL_GC_HOSTED
  • 3.15 How do you print to printers with GnuCOBOL?
    • 3.15.1 printing with standard out
    • 3.15.2 calling the system print
    • 3.15.3 print control library calls
    • 3.15.4 print to PDF with CUPS
    • 3.15.5 Jim Currey’s prtcbl
  • 3.16 Can I run background processes using GnuCOBOL?
  • 3.17 Is there GnuCOBOL API documentation?
  • 3.18 How do I use LD_RUN_PATH with GnuCOBOL?
  • 3.19 What GNU build tool options are available when building GnuCOBOL?
    • 3.19.1 Basics
    • 3.19.2 Out of tree builds
    • 3.19.3 Autotest options
  • 3.20 Why don’t I see any output from my GnuCOBOL program?
    • 3.20.1 COB_EXIT_WAIT
    • 3.20.2 SMCUP and RMCUP
  • 3.21 What are the GnuCOBOL compiler run-time limits?
    • 3.21.1 libcob/common.h
  • 3.22 What are the GnuCOBOL run-time environment variables?
  • 3.23 What are the differences between OpenCOBOL 1.1 and GnuCOBOL 1.1?
    • 3.23.1 General:
    • 3.23.2 libcob:
    • 3.23.3 cobc:
    • 3.23.4 Related
  • 3.24 What is runtime.cfg?
  • 3.25 How do I get the length of a LINE SEQUENTIAL read?
  • 3.26 Why can’t libcob find my link modules at run-time?
    • 3.26.1 colons and semi-colons
  • 3.27 How do I measure GnuCOBOL performance?
    • 3.27.1 Benchmarks
    • 3.27.2 GNU/Linux
    • 3.27.3 Other measurement tools
    • 3.27.4 -debug performance implications
  • 3.28 Are there bugs in GnuCOBOL?
  • 3.29 How do C data types map to GnuCOBOL data definitions?
    • 3.29.1 Structures
  • 3.30 Is it possible to create statically linked GnuCOBOL executables?
  • 3.31 Is there a good text editor for GnuCOBOL development?
    • 3.31.1 Vim
    • 3.31.2 Emacs
    • 3.31.3 THE
    • 3.31.4 KDE Advanced Text Editor
    • 3.31.5 Notepad++
    • 3.31.6 Others
  • 3.32 How can I properly manage numeric fields with extended screen IO?
  • 3.33 Does GnuCOBOL support reference modification?
    • 3.33.1 reference modification expressions
    • 3.33.2 debug mode bounds checking
  • 3.34 Does GnuCOBOL support using a mouse?
  • 3.35 What is the GnuCOBOL Enhanced Debugger?
    • 3.35.1 Install
    • 3.35.2 Sample
  • 3.36 How do I write a user defined function?
  • 3.37 What is cobfile?
  • 3.38 What is gcdiff?
• 4 Reserved Words
  • 4.1 What are the GnuCOBOL RESERVED words?
    • 4.1.1 ACCEPT
      • 4.1.1.1 ACCEPT OMITTED
      • 4.1.1.2 ACCEPT ON EXCEPTION
      • 4.1.1.3 EXCEPTION-STATUS
    • 4.1.2 ACCESS
    • 4.1.3 ACTIVE-CLASS
    • 4.1.4 ADD
      • 4.1.4.1 TO and GIVING
      • 4.1.4.2 ADD CORRESPONDING
    • 4.1.5 ADDRESS
    • 4.1.6 ADVANCING
    • 4.1.7 AFTER
    • 4.1.8 ALIGNED
    • 4.1.9 ALL
    • 4.1.10 ALLOCATE
    • 4.1.11 ALPHABET
    • 4.1.12 ALPHABETIC
    • 4.1.13 ALPHABETIC-LOWER
    • 4.1.14 ALPHABETIC-UPPER
    • 4.1.15 ALPHANUMERIC
    • 4.1.16 ALPHANUMERIC-EDITED
    • 4.1.17 ALSO
    • 4.1.18 ALTER
    • 4.1.19 ALTERNATE
    • 4.1.20 AND
    • 4.1.21 ANY
    • 4.1.22 ANYCASE
    • 4.1.23 ARE
    • 4.1.24 AREA
    • 4.1.25 AREAS
    • 4.1.26 ARGUMENT-NUMBER
    • 4.1.27 ARGUMENT-VALUE
    • 4.1.28 ARITHMETIC
    • 4.1.29 AS
    • 4.1.30 ASCENDING
    • 4.1.31 ASCII
    • 4.1.32 ASSIGN
    • 4.1.33 AT
    • 4.1.34 ATTRIBUTE
    • 4.1.35 AUTHOR
    • 4.1.36 AUTO
    • 4.1.37 AUTO-SKIP
    • 4.1.38 AUTOMATIC
    • 4.1.39 AUTOTERMINATE
    • 4.1.40 AWAY-FROM-ZERO
    • 4.1.41 B-AND
    • 4.1.42 B-NOT
    • 4.1.43 B-OR
    • 4.1.44 B-XOR
    • 4.1.45 BACKGROUND-COLOR
    • 4.1.46 BACKGROUND-COLOUR
    • 4.1.47 BASED
    • 4.1.48 BEEP
    • 4.1.49 BEFORE
    • 4.1.50 BELL
    • 4.1.51 BINARY
    • 4.1.52 BINARY-C-LONG
    • 4.1.53 BINARY-CHAR
    • 4.1.54 BINARY-DOUBLE
    • 4.1.55 BINARY-INT
    • 4.1.56 BINARY-LONG
    • 4.1.57 BINARY-LONG-LONG
    • 4.1.58 BINARY-SHORT
    • 4.1.59 BIT
    • 4.1.60 BLANK
    • 4.1.61 BLINK
    • 4.1.62 BLOCK
    • 4.1.63 BOOLEAN
    • 4.1.64 BOTTOM
    • 4.1.65 BY
    • 4.1.66 BYTE-LENGTH
    • 4.1.67 CALL
      • 4.1.67.1 CALL STATIC
      • 4.1.67.2 CALL STDCALL
      • 4.1.67.3 RETURNING OMITTED
    • 4.1.68 CANCEL
    • 4.1.69 CAPACITY
    • 4.1.70 CD
    • 4.1.71 CENTER
    • 4.1.72 CF
    • 4.1.73 CH
    • 4.1.74 CHAIN
    • 4.1.75 CHAINING
    • 4.1.76 CHARACTER
    • 4.1.77 CHARACTERS
    • 4.1.78 CLASS
    • 4.1.79 CLASS-ID
    • 4.1.80 CLASSIFICATION
    • 4.1.81 CLOSE
    • 4.1.82 COB-CRT-STATUS
    • 4.1.83 COBOL
    • 4.1.84 CODE
    • 4.1.85 CODE-SET
    • 4.1.86 COL
    • 4.1.87 COLLATING
    • 4.1.88 COLS
    • 4.1.89 COLUMN
    • 4.1.90 COLUMNS
    • 4.1.91 COMMA
    • 4.1.92 COMMAND-LINE
    • 4.1.93 COMMIT
    • 4.1.94 COMMON
    • 4.1.95 COMMUNICATION
    • 4.1.96 COMP
    • 4.1.97 COMP-1
    • 4.1.98 COMP-2
    • 4.1.99 COMP-3
    • 4.1.100 COMP-4
    • 4.1.101 COMP-5
    • 4.1.102 COMP-6
    • 4.1.103 COMP-X
    • 4.1.104 COMPUTATIONAL
    • 4.1.105 COMPUTATIONAL-1
    • 4.1.106 COMPUTATIONAL-2
    • 4.1.107 COMPUTATIONAL-3
    • 4.1.108 COMPUTATIONAL-4
    • 4.1.109 COMPUTATIONAL-5
    • 4.1.110 COMPUTATIONAL-6
    • 4.1.111 COMPUTATIONAL-X
    • 4.1.112 COMPUTE
    • 4.1.113 CONDITION
    • 4.1.114 CONFIGURATION
    • 4.1.115 CONSTANT
    • 4.1.116 CONTAINS
    • 4.1.117 CONTENT
    • 4.1.118 CONTINUE
    • 4.1.119 CONTROL
    • 4.1.120 CONTROLS
    • 4.1.121 CONVERSION
    • 4.1.122 CONVERTING
    • 4.1.123 COPY
      • 4.1.123.1 COPY REPLACING
      • 4.1.123.2 Full stop and COPY
    • 4.1.124 CORR
    • 4.1.125 CORRESPONDING
    • 4.1.126 COUNT
    • 4.1.127 CRT
    • 4.1.128 CRT-UNDER
    • 4.1.129 CURRENCY
    • 4.1.130 CURSOR
    • 4.1.131 CYCLE
    • 4.1.132 DATA
    • 4.1.133 DATA-POINTER
    • 4.1.134 DATE
    • 4.1.135 DATE-COMPILED
    • 4.1.136 DATE-MODIFIED
    • 4.1.137 DATE-WRITTEN
    • 4.1.138 DAY
    • 4.1.139 DAY-OF-WEEK
    • 4.1.140 DE
    • 4.1.141 DEBUGGING
    • 4.1.142 DECIMAL-POINT
    • 4.1.143 DECLARATIVES
    • 4.1.144 DEFAULT
    • 4.1.145 DELETE
      • 4.1.145.1 DELETE FILE
    • 4.1.146 DELIMITED
    • 4.1.147 DELIMITER
    • 4.1.148 DEPENDING
    • 4.1.149 DESCENDING
    • 4.1.150 DESTINATION
    • 4.1.151 DETAIL
    • 4.1.152 DISABLE
    • 4.1.153 DISC
    • 4.1.154 DISK
    • 4.1.155 DISPLAY
    • 4.1.156 DIVIDE
    • 4.1.157 DIVISION
    • 4.1.158 DOWN
    • 4.1.159 DUPLICATES
    • 4.1.160 DYNAMIC
    • 4.1.161 EBCDIC
    • 4.1.162 EC
    • 4.1.163 EGI
    • 4.1.164 ELSE
    • 4.1.165 EMI
    • 4.1.166 EMPTY-CHECK
    • 4.1.167 ENABLE
    • 4.1.168 END
    • 4.1.169 END-ACCEPT
    • 4.1.170 END-ADD
    • 4.1.171 END-CALL
    • 4.1.172 END-CHAIN
    • 4.1.173 END-COMPUTE
    • 4.1.174 END-DELETE
    • 4.1.175 END-DISPLAY
    • 4.1.176 END-DIVIDE
    • 4.1.177 END-EVALUATE
    • 4.1.178 END-IF
    • 4.1.179 END-MULTIPLY
    • 4.1.180 END-OF-PAGE
    • 4.1.181 END-PERFORM
    • 4.1.182 END-READ
    • 4.1.183 END-RECEIVE
    • 4.1.184 END-RETURN
    • 4.1.185 END-REWRITE
    • 4.1.186 END-SEARCH
    • 4.1.187 END-START
    • 4.1.188 END-STRING
    • 4.1.189 END-SUBTRACT
    • 4.1.190 END-UNSTRING
    • 4.1.191 END-WRITE
    • 4.1.192 ENTRY
    • 4.1.193 ENTRY-CONVENTION
    • 4.1.194 ENVIRONMENT
    • 4.1.195 ENVIRONMENT-NAME
    • 4.1.196 ENVIRONMENT-VALUE
    • 4.1.197 EO
    • 4.1.198 EOL
    • 4.1.199 EOP
    • 4.1.200 EOS
    • 4.1.201 EQUAL
    • 4.1.202 EQUALS
    • 4.1.203 ERASE
    • 4.1.204 ERROR
    • 4.1.205 ESCAPE
    • 4.1.206 ESI
    • 4.1.207 EVALUATE
    • 4.1.208 EXCEPTION
    • 4.1.209 EXCEPTION-OBJECT
    • 4.1.210 EXCLUSIVE
    • 4.1.211 EXIT
    • 4.1.212 EXPANDS
    • 4.1.213 EXTEND
    • 4.1.214 EXTERN
    • 4.1.215 EXTERNAL
    • 4.1.216 FACTORY
    • 4.1.217 FALSE
    • 4.1.218 FD
    • 4.1.219 FILE
      • 4.1.219.1 GnuCOBOL FILE STATUS codes
    • 4.1.220 FILE-CONTROL
    • 4.1.221 FILE-ID
    • 4.1.222 FILLER
    • 4.1.223 FINAL
    • 4.1.224 FIRST
    • 4.1.225 FLOAT-BINARY-128
    • 4.1.226 FLOAT-BINARY-32
    • 4.1.227 FLOAT-BINARY-64
    • 4.1.228 FLOAT-DECIMAL-16
    • 4.1.229 FLOAT-DECIMAL-34
    • 4.1.230 FLOAT-EXTENDED
    • 4.1.231 FLOAT-INFINITY
    • 4.1.232 FLOAT-LONG
    • 4.1.233 FLOAT-NOT-A-NUMBER
    • 4.1.234 FLOAT-SHORT
    • 4.1.235 FOOTING
    • 4.1.236 FOR
    • 4.1.237 FOREGROUND-COLOR
    • 4.1.238 FOREGROUND-COLOUR
    • 4.1.239 FOREVER
    • 4.1.240 FORMAT
    • 4.1.241 FREE
    • 4.1.242 FROM
    • 4.1.243 FULL
    • 4.1.244 FUNCTION
    • 4.1.245 FUNCTION-ID
    • 4.1.246 FUNCTION-POINTER
    • 4.1.247 GENERATE
    • 4.1.248 GET
    • 4.1.249 GIVING
    • 4.1.250 GLOBAL
    • 4.1.251 GO
      • 4.1.251.1 GO TO ENTRY
      • 4.1.251.2 Other GO related blathering
    • 4.1.252 GOBACK
    • 4.1.253 GREATER
    • 4.1.254 GROUP
    • 4.1.255 GROUP-USAGE
    • 4.1.256 HEADING
    • 4.1.257 HIGH-VALUE
    • 4.1.258 HIGH-VALUES
    • 4.1.259 HIGHLIGHT
    • 4.1.260 I-O
    • 4.1.261 I-O-CONTROL
    • 4.1.262 ID
    • 4.1.263 IDENTIFICATION
    • 4.1.264 IF
    • 4.1.265 IGNORE
    • 4.1.266 IGNORING
    • 4.1.267 IMPLEMENTS
    • 4.1.268 IN
    • 4.1.269 INDEX
    • 4.1.270 INDEXED
    • 4.1.271 INDICATE
    • 4.1.272 INDIRECT
    • 4.1.273 INHERITS
    • 4.1.274 INITIAL
    • 4.1.275 INITIALISE
    • 4.1.276 INITIALISED
    • 4.1.277 INITIALIZE
    • 4.1.278 INITIALIZED
    • 4.1.279 INITIATE
    • 4.1.280 INPUT
    • 4.1.281 INPUT-OUTPUT
    • 4.1.282 INSPECT
      • 4.1.282.1 printable characters
    • 4.1.283 INSTALLATION
    • 4.1.284 INTERFACE
    • 4.1.285 INTERFACE-ID
    • 4.1.286 INTERMEDIATE
    • 4.1.287 INTO
    • 4.1.288 INTRINSIC
    • 4.1.289 INVALID
    • 4.1.290 INVOKE
    • 4.1.291 IS
    • 4.1.292 JUST
    • 4.1.293 JUSTIFIED
    • 4.1.294 KEPT
    • 4.1.295 KEY
    • 4.1.296 KEYBOARD
    • 4.1.297 LABEL
    • 4.1.298 LAST
    • 4.1.299 LC_ALL
    • 4.1.300 LC_COLLATE
    • 4.1.301 LC_CTYPE
    • 4.1.302 LC_MESSAGES
    • 4.1.303 LC_MONETARY
    • 4.1.304 LC_NUMERIC
    • 4.1.305 LC_TIME
    • 4.1.306 LEADING
    • 4.1.307 LEFT
    • 4.1.308 LEFT-JUSTIFY
    • 4.1.309 LEFTLINE
    • 4.1.310 LENGTH
    • 4.1.311 LENGTH-CHECK
    • 4.1.312 LESS
    • 4.1.313 LIMIT
    • 4.1.314 LIMITS
    • 4.1.315 LINAGE
    • 4.1.316 LINAGE-COUNTER
    • 4.1.317 LINE
    • 4.1.318 LINE-COUNTER
    • 4.1.319 LINES
    • 4.1.320 LINKAGE
    • 4.1.321 LOCAL-STORAGE
    • 4.1.322 LOCALE
    • 4.1.323 LOCK
    • 4.1.324 LOW-VALUE
    • 4.1.325 LOW-VALUES
    • 4.1.326 LOWER
    • 4.1.327 LOWLIGHT
    • 4.1.328 MANUAL
    • 4.1.329 MEMORY
    • 4.1.330 MERGE
    • 4.1.331 MESSAGE
    • 4.1.332 METHOD
    • 4.1.333 METHOD-ID
    • 4.1.334 MINUS
    • 4.1.335 MODE
    • 4.1.336 MOVE
    • 4.1.337 MULTIPLE
    • 4.1.338 MULTIPLY
    • 4.1.339 NAME
    • 4.1.340 NATIONAL
    • 4.1.341 NATIONAL-EDITED
    • 4.1.342 NATIVE
    • 4.1.343 NEAREST-AWAY-FROM-ZERO
    • 4.1.344 NEAREST-EVEN
    • 4.1.345 NEAREST-TOWARD-ZERO
    • 4.1.346 NEGATIVE
    • 4.1.347 NESTED
    • 4.1.348 NEXT
    • 4.1.349 NO
    • 4.1.350 NO-ECHO
    • 4.1.351 NONE
    • 4.1.352 NORMAL
    • 4.1.353 NOT
    • 4.1.354 NOTHING
    • 4.1.355 NULL
    • 4.1.356 NULLS
    • 4.1.357 NUMBER
    • 4.1.358 NUMBER-OF-CALL-PARAMETERS
    • 4.1.359 NUMBERS
    • 4.1.360 NUMERIC
    • 4.1.361 NUMERIC-EDITED
    • 4.1.362 OBJECT
    • 4.1.363 OBJECT-COMPUTER
    • 4.1.364 OBJECT-REFERENCE
    • 4.1.365 OCCURS
    • 4.1.366 OF
    • 4.1.367 OFF
    • 4.1.368 OMITTED
    • 4.1.369 ON
    • 4.1.370 ONLY
    • 4.1.371 OPEN
    • 4.1.372 OPTIONAL
    • 4.1.373 OPTIONS
    • 4.1.374 OR
    • 4.1.375 ORDER
    • 4.1.376 ORGANISATION
    • 4.1.377 ORGANIZATION
    • 4.1.378 OTHER
    • 4.1.379 OUTPUT
    • 4.1.380 OVERFLOW
    • 4.1.381 OVERLINE
    • 4.1.382 OVERRIDE
    • 4.1.383 PACKED-DECIMAL
    • 4.1.384 PADDING
    • 4.1.385 PAGE
    • 4.1.386 PAGE-COUNTER
    • 4.1.387 PARAGRAPH
    • 4.1.388 PERFORM
    • 4.1.389 PF
    • 4.1.390 PH
    • 4.1.391 PIC
    • 4.1.392 PICTURE
    • 4.1.393 PLUS
    • 4.1.394 POINTER
    • 4.1.395 POSITION
    • 4.1.396 POSITIVE
    • 4.1.397 PREFIXED
    • 4.1.398 PRESENT
    • 4.1.399 PREVIOUS
    • 4.1.400 PRINTER
    • 4.1.401 PRINTING
    • 4.1.402 PROCEDURE
    • 4.1.403 PROCEDURE-POINTER
    • 4.1.404 PROCEDURES
    • 4.1.405 PROCEED
    • 4.1.406 PROGRAM
    • 4.1.407 PROGRAM-ID
    • 4.1.408 PROGRAM-POINTER
    • 4.1.409 PROHIBITED
    • 4.1.410 PROMPT
    • 4.1.411 PROPERTY
    • 4.1.412 PROTECTED
    • 4.1.413 PROTOTYPE
    • 4.1.414 PURGE
    • 4.1.415 QUEUE
    • 4.1.416 QUOTE
    • 4.1.417 QUOTES
    • 4.1.418 RAISE
    • 4.1.419 RAISING
    • 4.1.420 RANDOM
    • 4.1.421 RD
    • 4.1.422 READ
    • 4.1.423 READY
    • 4.1.424 RECEIVE
    • 4.1.425 RECORD
    • 4.1.426 RECORDING
    • 4.1.427 RECORDS
    • 4.1.428 RECURSIVE
    • 4.1.429 REDEFINES
    • 4.1.430 REEL
    • 4.1.431 REFERENCE
    • 4.1.432 REFERENCES
    • 4.1.433 RELATION
    • 4.1.434 RELATIVE
    • 4.1.435 RELEASE
    • 4.1.436 REMAINDER
    • 4.1.437 REMARKS
    • 4.1.438 REMOVAL
    • 4.1.439 RENAMES
    • 4.1.440 REPLACE
    • 4.1.441 REPLACING
    • 4.1.442 REPORT
    • 4.1.443 REPORTING
    • 4.1.444 REPORTS
    • 4.1.445 REPOSITORY
      • 4.1.445.1 Function library main module
    • 4.1.446 REQUIRED
    • 4.1.447 RESERVE
    • 4.1.448 RESET
    • 4.1.449 RESUME
    • 4.1.450 RETRY
    • 4.1.451 RETURN
    • 4.1.452 RETURN-CODE
    • 4.1.453 RETURNING
    • 4.1.454 REVERSE-VIDEO
    • 4.1.455 REVERSED
    • 4.1.456 REWIND
    • 4.1.457 REWRITE
    • 4.1.458 RF
    • 4.1.459 RH
    • 4.1.460 RIGHT
    • 4.1.461 RIGHT-JUSTIFY
    • 4.1.462 ROLLBACK
    • 4.1.463 ROUNDED
    • 4.1.464 ROUNDING
    • 4.1.465 RUN
    • 4.1.466 SAME
    • 4.1.467 SCREEN
    • 4.1.468 SCROLL
    • 4.1.469 SD
    • 4.1.470 SEARCH
    • 4.1.471 SECONDS
    • 4.1.472 SECTION
    • 4.1.473 SECURE
    • 4.1.474 SECURITY
    • 4.1.475 SEGMENT
    • 4.1.476 SEGMENT-LIMIT
    • 4.1.477 SELECT
    • 4.1.478 SELF
    • 4.1.479 SEND
    • 4.1.480 SENTENCE
    • 4.1.481 SEPARATE
    • 4.1.482 SEQUENCE
    • 4.1.483 SEQUENTIAL
      • 4.1.483.1 Variable length sequential
    • 4.1.484 SET
    • 4.1.485 SHARING
    • 4.1.486 SIGN
    • 4.1.487 SIGNED
    • 4.1.488 SIGNED-INT
    • 4.1.489 SIGNED-LONG
    • 4.1.490 SIGNED-SHORT
    • 4.1.491 SIZE
    • 4.1.492 SORT
      • 4.1.492.1 A GCSORT support tool
      • 4.1.492.2 IN ORDER
    • 4.1.493 SORT-MERGE
    • 4.1.494 SORT-RETURN
    • 4.1.495 SOURCE
    • 4.1.496 SOURCE-COMPUTER
    • 4.1.497 SOURCES
    • 4.1.498 SPACE
    • 4.1.499 SPACES
    • 4.1.500 SPECIAL-NAMES
    • 4.1.501 STANDARD
    • 4.1.502 STANDARD-1
    • 4.1.503 STANDARD-2
    • 4.1.504 STANDARD-BINARY
    • 4.1.505 STANDARD-DECIMAL
    • 4.1.506 START
    • 4.1.507 STATEMENT
    • 4.1.508 STATIC
    • 4.1.509 STATUS
    • 4.1.510 STDCALL
    • 4.1.511 STEP
    • 4.1.512 STOP
      • 4.1.512.1 Temporary STOP
    • 4.1.513 STRING
    • 4.1.514 STRONG
    • 4.1.515 SUB-QUEUE-1
    • 4.1.516 SUB-QUEUE-2
    • 4.1.517 SUB-QUEUE-3
    • 4.1.518 SUBTRACT
    • 4.1.519 SUM
    • 4.1.520 SUPER
    • 4.1.521 SUPPRESS
    • 4.1.522 SYMBOL
    • 4.1.523 SYMBOLIC
    • 4.1.524 SYNC
    • 4.1.525 SYNCHRONISED
    • 4.1.526 SYNCHRONIZED
    • 4.1.527 SYSTEM-DEFAULT
    • 4.1.528 TAB
    • 4.1.529 TABLE
    • 4.1.530 TALLY
    • 4.1.531 TALLYING
    • 4.1.532 TAPE
    • 4.1.533 TERMINAL
    • 4.1.534 TERMINATE
    • 4.1.535 TEST
    • 4.1.536 TEXT
    • 4.1.537 THAN
    • 4.1.538 THEN
    • 4.1.539 THROUGH
    • 4.1.540 THRU
    • 4.1.541 TIME
    • 4.1.542 TIME-OUT
    • 4.1.543 TIMEOUT
    • 4.1.544 TIMES
    • 4.1.545 TO
    • 4.1.546 TOP
    • 4.1.547 TOWARD-GREATER
    • 4.1.548 TOWARD-LESSER
    • 4.1.549 TRACE
    • 4.1.550 TRAILING
    • 4.1.551 TRAILING-SIGN
    • 4.1.552 TRANSFORM
    • 4.1.553 TRUE
    • 4.1.554 TRUNCATION
    • 4.1.555 TYPE
    • 4.1.556 TYPEDEF
    • 4.1.557 UCS-4
    • 4.1.558 UNBOUNDED
    • 4.1.559 UNDERLINE
    • 4.1.560 UNIT
    • 4.1.561 UNIVERSAL
    • 4.1.562 UNLOCK
    • 4.1.563 UNSIGNED
    • 4.1.564 UNSIGNED-INT
    • 4.1.565 UNSIGNED-LONG
    • 4.1.566 UNSIGNED-SHORT
    • 4.1.567 UNSTRING
    • 4.1.568 UNTIL
    • 4.1.569 UP
    • 4.1.570 UPDATE
    • 4.1.571 UPON
    • 4.1.572 UPPER
    • 4.1.573 USAGE
    • 4.1.574 USE
    • 4.1.575 USER
    • 4.1.576 USER-DEFAULT
    • 4.1.577 USING
    • 4.1.578 UTF-16
    • 4.1.579 UTF-8
    • 4.1.580 VAL-STATUS
    • 4.1.581 VALID
    • 4.1.582 VALIDATE
    • 4.1.583 VALIDATE-STATUS
    • 4.1.584 VALUE
    • 4.1.585 VALUES
    • 4.1.586 VARYING
    • 4.1.587 WAIT
    • 4.1.588 WHEN
    • 4.1.589 WHEN-COMPILED
    • 4.1.590 WINAPI
    • 4.1.591 WITH
    • 4.1.592 WORDS
    • 4.1.593 WORKING-STORAGE
    • 4.1.594 WRITE
    • 4.1.595 YYYYDDD
    • 4.1.596 YYYYMMDD
    • 4.1.597 ZERO
    • 4.1.598 ZERO-FILL
    • 4.1.599 ZEROES
    • 4.1.600 ZEROS
  • 4.2 Does GnuCOBOL implement any Intrinsic FUNCTIONs?
    • 4.2.1 FUNCTION ABS
    • 4.2.2 FUNCTION ACOS
    • 4.2.3 FUNCTION ANNUITY
    • 4.2.4 FUNCTION ASIN
    • 4.2.5 FUNCTION ATAN
    • 4.2.6 FUNCTION BOOLEAN-OF-INTEGER
    • 4.2.7 FUNCTION BYTE-LENGTH
    • 4.2.8 FUNCTION CHAR
    • 4.2.9 FUNCTION CHAR-NATIONAL
    • 4.2.10 FUNCTION COMBINED-DATETIME
    • 4.2.11 FUNCTION CONCATENATE
    • 4.2.12 FUNCTION CONTENT-LENGTH
    • 4.2.13 FUNCTION CONTENT-OF
    • 4.2.14 FUNCTION COS
    • 4.2.15 FUNCTION CURRENCY-SYMBOL
    • 4.2.16 FUNCTION CURRENT-DATE
    • 4.2.17 FUNCTION DATE-OF-INTEGER
    • 4.2.18 FUNCTION DATE-TO-YYYYMMDD
    • 4.2.19 FUNCTION DAY-OF-INTEGER
    • 4.2.20 FUNCTION DAY-TO-YYYYDDD
    • 4.2.21 FUNCTION DISPLAY-OF
    • 4.2.22 FUNCTION E
    • 4.2.23 FUNCTION EXCEPTION-FILE
    • 4.2.24 FUNCTION EXCEPTION-FILE-N
    • 4.2.25 FUNCTION EXCEPTION-LOCATION
    • 4.2.26 FUNCTION EXCEPTION-LOCATION-N
    • 4.2.27 FUNCTION EXCEPTION-STATEMENT
    • 4.2.28 FUNCTION EXCEPTION-STATUS
    • 4.2.29 FUNCTION EXP
    • 4.2.30 FUNCTION EXP10
    • 4.2.31 FUNCTION FACTORIAL
    • 4.2.32 FUNCTION FORMATTED-CURRENT-DATE
    • 4.2.33 FUNCTION FORMATTED-DATE
    • 4.2.34 FUNCTION FORMATTED-DATETIME
    • 4.2.35 FUNCTION FORMATTED-TIME
    • 4.2.36 FUNCTION FRACTION-PART
    • 4.2.37 FUNCTION HIGHEST-ALGEBRAIC
    • 4.2.38 FUNCTION INTEGER
    • 4.2.39 FUNCTION INTEGER-OF-BOOLEAN
    • 4.2.40 FUNCTION INTEGER-OF-DATE
    • 4.2.41 FUNCTION INTEGER-OF-DAY
    • 4.2.42 FUNCTION INTEGER-OF-FORMATTED-DATE
    • 4.2.43 FUNCTION INTEGER-PART
    • 4.2.44 FUNCTION LENGTH
    • 4.2.45 FUNCTION LENGTH-AN
    • 4.2.46 FUNCTION LOCALE-COMPARE
    • 4.2.47 FUNCTION LOCALE-DATE
    • 4.2.48 FUNCTION LOCALE-TIME
    • 4.2.49 FUNCTION LOCALE-TIME-FROM-SECONDS
    • 4.2.50 FUNCTION LOG
    • 4.2.51 FUNCTION LOG10
    • 4.2.52 FUNCTION LOWER-CASE
    • 4.2.53 FUNCTION LOWEST-ALGEBRAIC
    • 4.2.54 FUNCTION MAX
    • 4.2.55 FUNCTION MEAN
    • 4.2.56 FUNCTION MEDIAN
    • 4.2.57 FUNCTION MIDRANGE
    • 4.2.58 FUNCTION MIN
    • 4.2.59 FUNCTION MOD
    • 4.2.60 FUNCTION MODULE-CALLER-ID
    • 4.2.61 FUNCTION MODULE-DATE
    • 4.2.62 FUNCTION MODULE-FORMATTED-DATE
    • 4.2.63 FUNCTION MODULE-ID
      • 4.2.63.1 Invocation name
    • 4.2.64 FUNCTION MODULE-PATH
    • 4.2.65 FUNCTION MODULE-SOURCE
    • 4.2.66 FUNCTION MODULE-TIME
    • 4.2.67 FUNCTION MONETARY-DECIMAL-POINT
    • 4.2.68 FUNCTION MONETARY-THOUSANDS-SEPARATOR
    • 4.2.69 FUNCTION NATIONAL-OF
    • 4.2.70 FUNCTION NUMERIC-DECIMAL-POINT
    • 4.2.71 FUNCTION NUMERIC-THOUSANDS-SEPARATOR
    • 4.2.72 FUNCTION NUMVAL
    • 4.2.73 FUNCTION NUMVAL-C
    • 4.2.74 FUNCTION NUMVAL-F
    • 4.2.75 FUNCTION ORD
    • 4.2.76 FUNCTION ORD-MAX
    • 4.2.77 FUNCTION ORD-MIN
    • 4.2.78 FUNCTION PI
    • 4.2.79 FUNCTION PRESENT-VALUE
    • 4.2.80 FUNCTION PYTHON
      • 4.2.80.1 Python examples
    • 4.2.81 FUNCTION RANDOM
    • 4.2.82 FUNCTION RANGE
    • 4.2.83 FUNCTION REM
    • 4.2.84 FUNCTION REVERSE
    • 4.2.85 FUNCTION REXX
    • 4.2.86 FUNCTION REXX-UNRESTRICTED
    • 4.2.87 FUNCTION SECONDS-FROM-FORMATTED-TIME
    • 4.2.88 FUNCTION SECONDS-PAST-MIDNIGHT
    • 4.2.89 FUNCTION SIGN
    • 4.2.90 FUNCTION SIN
    • 4.2.91 FUNCTION SQRT
    • 4.2.92 FUNCTION STANDARD-COMPARE
    • 4.2.93 FUNCTION STANDARD-DEVIATION
    • 4.2.94 FUNCTION STORED-CHAR-LENGTH
    • 4.2.95 FUNCTION SUBSTITUTE
    • 4.2.96 FUNCTION SUBSTITUTE-CASE
    • 4.2.97 FUNCTION SUM
    • 4.2.98 FUNCTION TAN
    • 4.2.99 FUNCTION TEST-DATE-YYYYMMDD
    • 4.2.100 FUNCTION TEST-DAY-YYYYDDD
    • 4.2.101 FUNCTION TEST-FORMATTED-DATETIME
    • 4.2.102 FUNCTION TEST-NUMVAL
    • 4.2.103 FUNCTION TEST-NUMVAL-C
    • 4.2.104 FUNCTION TEST-NUMVAL-F
    • 4.2.105 FUNCTION TRIM
    • 4.2.106 FUNCTION UPPER-CASE
    • 4.2.107 FUNCTION VARIANCE
    • 4.2.108 FUNCTION WHEN-COMPILED
    • 4.2.109 FUNCTION YEAR-TO-YYYY
  • 4.3 Can you clarify the use of FUNCTION in GnuCOBOL?
  • 4.4 What is the difference between the LENGTH verb and FUNCTION LENGTH?
  • 4.5 What STOCK CALL LIBRARY does GnuCOBOL offer?
    • 4.5.1 list-system
    • 4.5.2 A CBL_ERROR_PROC example
    • 4.5.3 byte access files
    • 4.5.4 Some stock library explanations
    • 4.5.5 CBL_GC_FORK
  • 4.6 What are the XF4, XF5, and X91 routines?
  • 4.7 What is CBL_OC_NANOSLEEP?
  • 4.8 How do you use C$JUSTIFY?
  • 4.9 What preprocessor directives are supported by GnuCOBOL?
    • 4.9.1 >>D
    • 4.9.2 >>DEFINE
    • 4.9.3 >>DISPLAY
    • 4.9.4 >>IF
      • 4.9.4.1 Predefined symbols
    • 4.9.5 >>ELSE-IF
    • 4.9.6 >>ELIF
    • 4.9.7 >>ELSE
    • 4.9.8 >>END-IF
    • 4.9.9 >>LEAP-SECOND
    • 4.9.10 >>SET
    • 4.9.11 >>SOURCE
    • 4.9.12 >>TURN
    • 4.9.13 Example of compiler directives
  • 4.10 What are the GnuCOBOL mnemonics?
  • 4.11 What are the GnuCOBOL DATA DIVISION level numbers?
    • 4.11.1 Special Data Levels
• 5 Features and extensions
  • 5.1 How do I use GnuCOBOL for CGI?
    • 5.1.1 AJAX
    • 5.1.2 jQuery
    • 5.1.3 CGIFORM
  • 5.2 What is ocdoc?
    • 5.2.1 ocdoc generated ocdoc documentation
  • 5.3 What is CBL_OC_DUMP?
    • 5.3.1 Update to OC_CBL_DUMP
  • 5.4 Does GnuCOBOL support any SQL databases?
    • 5.4.1 OCESQL
      • 5.4.1.1 Running ocesql
      • 5.4.1.2 PostgreSQL samples
    • 5.4.2 esqlOC
    • 5.4.3 Firebird gpre
    • 5.4.4 Oracle
    • 5.4.5 DB2
    • 5.4.6 Other SQL engines
    • 5.4.7 Oracle procob and binary data sizes
    • 5.4.8 Direct PostgreSQL Sample
    • 5.4.9 Oracle 12.1
    • 5.4.10 ODBC
    • 5.4.11 CobolSQLite3
  • 5.5 Does GnuCOBOL support ISAM?
    • 5.5.1 FILE STATUS
    • 5.5.2 VBISAM
  • 5.6 Does GnuCOBOL support modules?
  • 5.7 What is COB_PRE_LOAD?
  • 5.8 What is the GnuCOBOL LINKAGE SECTION for?
  • 5.9 What does the -fstatic-linkage GnuCOBOL compiler option do?
  • 5.10 Does GnuCOBOL support Message Queues?
  • 5.11 Can GnuCOBOL interface with Lua?
    • 5.11.1 Intrinsic Lua
    • 5.11.2 oclua
  • 5.12 Can GnuCOBOL use ECMAScript?
  • 5.13 Can GnuCOBOL use JavaScript?
    • 5.13.1 Seed
    • 5.13.2 Duktape
  • 5.14 Can GnuCOBOL interface with Scheme?
  • 5.15 Can GnuCOBOL interface with Tcl/Tk?
    • 5.15.1 tclgui
  • 5.16 Can GnuCOBOL interface with Falcon PL?
  • 5.17 Can GnuCOBOL interface with Ada?
  • 5.18 Can GnuCOBOL interface with Vala?
    • 5.18.1 Call GnuCOBOL programs from Vala
    • 5.18.2 Call GnuCOBOL from a Vala GTK gui application
    • 5.18.3 Call Genie program from GnuCOBOL
    • 5.18.4 Pass data to and from Genie
  • 5.19 Can GnuCOBOL interface with S-Lang?
    • 5.19.1 Setup
    • 5.19.2 Keyboard control
    • 5.19.3 Scripting
  • 5.20 Can the GNAT Programming Studio be used with GnuCOBOL?
  • 5.21 Does GnuCOBOL support SCREEN SECTION?
    • 5.21.1 Environment variables in source code
  • 5.22 What are the GnuCOBOL SCREEN SECTION colour values?
  • 5.23 Does GnuCOBOL support CRT STATUS?
  • 5.24 What is CobCurses?
  • 5.25 What is CobXRef?
  • 5.26 Does GnuCOBOL implement Report Writer?
  • 5.27 Does GnuCOBOL implement LINAGE?
  • 5.28 Can I use ctags with GnuCOBOL?
    • 5.28.1 Vim and ctags
  • 5.29 What about debugging GnuCOBOL programs?
    • 5.29.1 Some debugging tricks
    • 5.29.2 Animator
    • 5.29.3 Unit testing
  • 5.30 Is there a C interface to GnuCOBOL?
    • 5.30.1 C API
    • 5.30.2 TCC
  • 5.31 What are some idioms for dealing with C char * data from GnuCOBOL?
  • 5.32 Does GnuCOBOL support COPY includes?
  • 5.33 Does GnuCOBOL support WHEN-COMPILED?
  • 5.34 What is PI in GnuCOBOL?
  • 5.35 Does GnuCOBOL support the Object features of the 2002 standard?
  • 5.36 Does GnuCOBOL implement level 78?
  • 5.37 Does GnuCOBOL implement CONSTANT?
  • 5.38 What source formats are accepted by GnuCOBOL?
    • 5.38.1 commas
  • 5.39 Does GnuCOBOL support continuation lines?
  • 5.40 Does GnuCOBOL support string concatenation?
  • 5.41 Does GnuCOBOL support D indicator debug lines?
  • 5.42 Does GnuCOBOL support mixed case source code?
  • 5.43 What is the shortest GnuCOBOL program?
  • 5.44 What is the shortest Hello World program in GnuCOBOL?
  • 5.45 How do I get those nifty sequential sequence numbers in a source file?
  • 5.46 Is there a way to count trailing spaces in data fields using GnuCOBOL?
  • 5.47 Is there a way to left justify an edited numeric field?
  • 5.48 Is there a way to detemermine when GnuCOBOL is running ASCII or EBCDIC?
  • 5.49 Is there a way to determine when GnuCOBOL is running on 32 or 64 bits?
  • 5.50 Does GnuCOBOL support recursion?
  • 5.51 Does GnuCOBOL capture arithmetic overflow?
  • 5.52 Can GnuCOBOL be used for plotting?
    • 5.52.1 gnuplot
    • 5.52.2 MathGL
  • 5.53 Does GnuCOBOL support the GIMP ToolKit, GTK+?
    • 5.53.1 The functional GTK+ project
    • 5.53.2 A web browsing widget embedded in GnuCOBOL?
    • 5.53.3 GTK-server
  • 5.54 What is GCSORT?
  • 5.55 When is Easter?
    • 5.55.1 Easter program critique
    • 5.55.2 A real COBOL Computus
    • 5.55.3 Another Computus
  • 5.56 Does Vim support GnuCOBOL?
    • 5.56.1 vim code completion
    • 5.56.2 freedom
    • 5.56.3 autoload a skeleton
    • 5.56.4 elvis
  • 5.57 What is w3m?
  • 5.58 What is COB_LIBRARY_PATH?
  • 5.59 Can GnuCOBOL interface with Rexx?
    • 5.59.1 Intrinsic REXX
      • 5.59.1.1 RESTRICTED mode REXX
      • 5.59.1.2 rexxapi.cpy
      • 5.59.1.3 REXX instructions
      • 5.59.1.4 Special Variables
      • 5.59.1.5 Functions
      • 5.59.1.6 Regina REXX options
      • 5.59.1.7 Conditions
      • 5.59.1.8 Examples
      • 5.59.1.9 Intrinsic REXX notes
    • 5.59.2 Open Object Rexx
    • 5.59.3 Regina Rexx
  • 5.60 Does GnuCOBOL support table SEARCH and SORT?
    • 5.60.1 Linear SEARCH
    • 5.60.2 SORT and binary SEARCH ALL
  • 5.61 Can GnuCOBOL handle named pipes?
    • 5.61.1 popen
  • 5.62 Can GnuCOBOL interface with ROOT/CINT?
    • 5.62.1 Graphing sample
  • 5.63 Can GnuCOBOL be used to serve HTTP?
    • 5.63.1 GNU libmicrohttpd
    • 5.63.2 libsoup HTTP server
  • 5.64 Is there a good SCM tool for GnuCOBOL?
    • 5.64.1 cobweb-words
  • 5.65 Does GnuCOBOL interface with FORTRAN?
  • 5.66 Does GnuCOBOL interface with APL?
  • 5.67 Does GnuCOBOL interface with J?
  • 5.68 What is COBOLUnit?
  • 5.69 Can GnuCOBOL interface with Gambas?
  • 5.70 Does GnuCOBOL work with LLVM?
  • 5.71 Does GnuCOBOL interface with Python?
    • 5.71.1 Intrinsic Python
    • 5.71.2 Embedding Python
  • 5.72 Can GnuCOBOL interface with Forth?
  • 5.73 Can GnuCOBOL interface with Shakespeare?
  • 5.74 Can GnuCOBOL interface with Ruby?
    • 5.74.1 mruby
  • 5.75 Can GnuCOBOL interface with Pure?
  • 5.76 Can GnuCOBOL process null terminated strings?
  • 5.77 Can GnuCOBOL display the process environment space?
  • 5.78 Can GnuCOBOL generate callable programs with void returns?
    • 5.78.1 voidcall_gtk.c
    • 5.78.2 A GTK+ calendar
  • 5.79 Can GnuCOBOL interface with Jim TCL?
  • 5.80 Can GnuCOBOL interface with RLIB?
  • 5.81 Can GnuCOBOL interface with Perl?
  • 5.82 Can GnuCOBOL interface with BASIC?
    • 5.82.1 Gambas
    • 5.82.2 BaCon
  • 5.83 Can GnuCOBOL interface with Nim?
  • 5.84 What is COBJAPI?
  • 5.85 Does GnuCOBOL support source code macros?
  • 5.86 What is the largest known prime number?
  • 5.87 Is there an assembler interface to GnuCOBOL?
    • 5.87.1 cpuid
    • 5.87.2 GNU lightning
  • 5.88 Can GnuCOBOL interface with D?
  • 5.89 Can you run GnuCOBOL programs from Node.js?
  • 5.90 What is cobol-unit-test?
    • 5.90.1 cobol-unit-test examples
    • 5.90.2 cobol-unit-test credits
  • 5.91 Does GnuCOBOL work with SWIG?
    • 5.91.1 Using SWIG
    • 5.91.2 Contract programming with SWIG
    • 5.91.3 SWIG in summary
  • 5.92 What is small s.c.r.i.p.t.?
    • 5.92.1 deadfish
  • 5.93 How do I determine the amount of memory available?
  • 5.94 What is CBL_OC_GETOPT?
  • 5.95 Does GnuCOBOL work with shell scripting?
  • 5.96 Can GnuCOBOL generate Postscript?
  • 5.97 Can GnuCOBOL interface with Java?
    • 5.97.1 FUNCTION JVM
    • 5.97.2 Java Native Access
  • 5.98 Can GnuCOBOL interface with Icon?
    • 5.98.1 Unicon
  • 5.99 What is JRecord?
    • 5.99.1 cb2xml
    • 5.99.2 RecordEditor
  • 5.100 Can GnuCOBOL interface with Piet?
  • 5.101 Can GnuCOBOL be used with D-Bus?
  • 5.102 Can GnuCOBOL interface with Red?
    • 5.102.1 COBOLREBOL
  • 5.103 Can GnuCOBOL catch POSIX signals?
  • 5.104 Can GnuCOBOL interface with X11?
  • 5.105 Can GnuCOBOL interface with PARI/GP?
  • 5.106 Can GnuCOBOL interface with GRETL?
  • 5.107 What is CBL_OC_SOCKET?
  • 5.108 Can GnuCOBOL interface with Haxe/Neko?
  • 5.109 Can GnuCOBOL evaluate equations given at runtime?
  • 5.110 Can GnuCOBOL interface with Go?
  • 5.111 Can GnuCOBOL interface with libcox?
  • 5.112 Can GnuCOBOL interface with UnQLite?
  • 5.113 Can GnuCOBOL interface with Duktape?
  • 5.114 Can GnuCOBOL process JSON?
  • 5.115 Can GnuCOBOL interface with Pascal?
  • 5.116 Can GnuCOBOL interface with Scala?
  • 5.117 Can GnuCOBOL interface with MUMPS?
  • 5.118 Can GnuCOBOL interface with Erlang?
  • 5.119 Can GnuCOBOL interface with Elixir?
  • 5.120 Can GnuCOBOL interface with Rust?
  • 5.121 Can GnuCOBOL executables include resources?
    • 5.121.1 .incbin
    • 5.121.2 libarchive
  • 5.122 Can GnuCOBOL interface with Vedis?
  • 5.123 Can GnuCOBOL embed PH7 PHP?
  • 5.124 Can GnuCOBOL manage WebSockets?
  • 5.125 Can GnuCOBOL interface with XForms?
  • 5.126 Can GnuCOBOL interface with Agar?
    • 5.126.1 gcv
      • 5.126.1.1 gcv usage
    • 5.126.2 commands.sed
    • 5.126.3 cobweb-agar samples
  • 5.127 How do I enable mouse support in GnuCOBOL programs?
• 6 GnuCOBOL in production
  • 6.1 Is GnuCOBOL ready for production use?
  • 6.2 What issues will I face when porting from a mainframe?
    • 6.2.1 Enterprise
  • 6.3 What about GnuCOBOL in High Performance Computing?
    • 6.3.1 Chapel
  • 6.4 Mixed programming with GnuCOBOL?
  • 6.5 Does GnuCOBOL work in the Cloud?
    • 6.5.1 Juju Charm
    • 6.5.2 cobol.run
• 7 Tutorial
  • 7.1 Working directory
  • 7.2 Hello
  • 7.3 Compiling hello
  • 7.4 Line by line
  • 7.5 The DIVISIONS
  • 7.6 Full stop, periods
  • 7.7 Including Data
  • 7.8 Characters and numbers
    • 7.8.1 run job
  • 7.9 Source formats
  • 7.10 Flow of control
  • 7.11 Conditionals
  • 7.12 If else
  • 7.13 Branching
  • 7.14 Perform branching
  • 7.15 Going, going, …
  • 7.16 Selective evaluation
  • 7.17 Other forms of branching
  • 7.18 Loops
  • 7.19 Loop forms
  • 7.20 Perform loops
    • 7.20.1 out-of-line perform
    • 7.20.2 inline perform
  • 7.21 Syntax errors
  • 7.22 Logic errors
• 8 Notes
  • 8.1 big-endian
  • 8.2 little-endian
  • 8.3 ASCII notes
  • 8.4 currency symbol
  • 8.5 DSO
  • 8.6 errno
  • 8.7 gdb
  • 8.8 GMP
  • 8.9 ISAM
  • 8.10 line sequential
  • 8.11 APT
  • 8.12 ROBODoc Support
  • 8.13 cobol.vim
  • 8.14 make check listing
  • 8.15 ABI
  • 8.16 Tectonics
  • 8.17 Setting Locale
  • 8.18 GNU
  • 8.19 Performing FOREVER?
  • 8.20 POSIX
  • 8.21 BITWISE
  • 8.22 Getting Started with esqlOC
    • 8.22.1 esqlOC example
    • 8.22.2 What does this code do?
    • 8.22.3 And this works with which database systems?
    • 8.22.4 Does it really work?
    • 8.22.5 Features
    • 8.22.6 Getting started with esqlOC (WinXP, MySQL, “OpenCOBOL 1.1” build by Sergey)
  • 8.23 UDF
  • 8.24 GUI
  • 8.25 Elvis support for GnuCOBOL
  • 8.26 FAQ
  • 8.27 Hercules
    • 8.27.1 TK4-
  • 8.28 JCL
    • 8.28.1 Hello, System/370 and MVT 21.8
  • 8.29 Kate
    • 8.29.1 cobol.xml
  • 8.30 libpgsql.cob
  • 8.31 Sample shortforms
  • 8.32 y2k
  • 8.33 Quine
  • 8.34 bubble-cobol.tcl
  • 8.35 Rosetta Code
  • 8.36 cobweb-periodic listing
  • 8.37 JNA
  • 8.38 GNU General Public License
  • 8.39 GnuCOBOL FAQ feedback
• 9 Authors
  • 9.1 Maintainers and Contributors
• 10 ChangeLog