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Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 765 |
1 files changed, 388 insertions, 377 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index 9f3abe03..008160c7 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -12847,12 +12847,15 @@ File: gawk.info, Node: Boolean Functions, Next: Numeric Functions, Prev: Call 9.1.2 Generating Boolean Values ------------------------------- -This functions is specific to 'gawk'. It is not available in +This function is specific to 'gawk'. It is not available in compatibility mode (*note Options::): 'bool(EXPRESSION)' - - blah blah + Return a Boolean-typed value based on the regular Boolean value of + EXPRESSION. Boolean "true" values have numeric value one and + string value '"TRUE"'. Boolean "false" values have numeric zero + and string value '"FALSE"'. This is discussed in more detail in + *note Boolean Typed Values::. File: gawk.info, Node: Numeric Functions, Next: String Functions, Prev: Boolean Functions, Up: Built-in @@ -14428,6 +14431,9 @@ contexts. '"array"' X is an array. + '"bool"' + X is a Boolean typed value (*note Boolean Typed Values::). + '"regexp"' X is a strongly typed regexp (*note Strong Regexp Constants::). @@ -20948,19 +20954,18 @@ File: gawk.info, Node: Boolean Typed Values, Next: Array Sorting, Prev: Nonde 12.2 Boolean Typed Values ========================= -This minor node describes an advanced, 'gawk'-specific extension. - - Scalar values in 'awk' are either numbers or strings. 'gawk' also -supports values of type 'regexp' (FIXME pxref). +Scalar values in 'awk' are either numbers or strings. 'gawk' also +supports values of type 'regexp' (*note Strong Regexp Constants::). - As seen in FIXME @ref{} here, Boolean values in 'awk' don't have a -separate type: a value counts as "true" if it is nonzero or non-null, -and as "false" otherwise. + As described in *note Truth Values::, Boolean values in 'awk' don't +have a separate type: a value counts as "true" if it is nonzero or +non-null, and as "false" otherwise. When interchanging data with languages that do have a real Boolean type, using a standard format such as JSON or XML, the lack of a true -Boolean type in 'awk' is problematic. (FIXME: xref to gawkextlib json -extension) +Boolean type in 'awk' is problematic. (See, for example, the 'json' +extension provided by the 'gawkextlib' project +(https://sourceforge.net/projects/gawkextlib).) It's easy to import Boolean data into 'awk', but then the fact that it was originally Boolean is lost. Exporting data is even harder; @@ -20972,14 +20977,20 @@ value of Boolean type. The returned values are different than normal 'awk' values. When treated as numbers, they are either one or zero, depending upon the -truth value of the expression passed in the call. When treated as -strings, they are either '"TRUE"' or '"FALSE"', again depending upon the -truth value of the expression passed in the call. The value for "false" -is thus unusual; it is zero numerically, but not empty when treated as a -string. +truth value of the original expression passed in the call to 'bool()'. +When treated as strings, they are either '"TRUE"' or '"FALSE"', again +depending upon the truth value of the expression passed in the call to +'bool()'. The value for "false" is thus unusual; it is zero +numerically, but not empty when treated as a string. + + The 'typeof()' function (*note Type Functions::) returns '"bool"' for +these values. - The 'typeof()' function (FIXME pxref here) returns '"bool"' for these -values. + While it would have been possible to add two new built-in variables +of Boolean type named 'TRUE' and 'FALSE', doing so would undoubtedly +have broken many existing 'awk' programs. Instead, having a "generator" +function that creates Boolean values gives flexibility, without breaking +any existing code. File: gawk.info, Node: Array Sorting, Next: Two-way I/O, Prev: Boolean Typed Values, Up: Advanced Features @@ -38426,364 +38437,364 @@ Node: Functions540711 Node: Built-in541749 Node: Calling Built-in542902 Node: Boolean Functions544898 -Node: Numeric Functions545211 -Ref: Numeric Functions-Footnote-1549238 -Ref: Numeric Functions-Footnote-2549886 -Ref: Numeric Functions-Footnote-3549934 -Node: String Functions550206 -Ref: String Functions-Footnote-1574347 -Ref: String Functions-Footnote-2574475 -Ref: String Functions-Footnote-3574723 -Node: Gory Details574810 -Ref: table-sub-escapes576601 -Ref: table-sub-proposed578120 -Ref: table-posix-sub579483 -Ref: table-gensub-escapes581024 -Ref: Gory Details-Footnote-1581847 -Node: I/O Functions582001 -Ref: table-system-return-values588455 -Ref: I/O Functions-Footnote-1590535 -Ref: I/O Functions-Footnote-2590683 -Node: Time Functions590803 -Ref: Time Functions-Footnote-1601474 -Ref: Time Functions-Footnote-2601542 -Ref: Time Functions-Footnote-3601700 -Ref: Time Functions-Footnote-4601811 -Ref: Time Functions-Footnote-5601923 -Ref: Time Functions-Footnote-6602150 -Node: Bitwise Functions602416 -Ref: table-bitwise-ops603010 -Ref: Bitwise Functions-Footnote-1609073 -Ref: Bitwise Functions-Footnote-2609246 -Node: Type Functions609437 -Node: I18N Functions612300 -Node: User-defined613951 -Node: Definition Syntax614763 -Ref: Definition Syntax-Footnote-1620457 -Node: Function Example620528 -Ref: Function Example-Footnote-1623450 -Node: Function Calling623472 -Node: Calling A Function624060 -Node: Variable Scope625018 -Node: Pass By Value/Reference628012 -Node: Function Caveats630656 -Ref: Function Caveats-Footnote-1632703 -Node: Return Statement632823 -Node: Dynamic Typing635802 -Node: Indirect Calls636732 -Ref: Indirect Calls-Footnote-1646987 -Node: Functions Summary647115 -Node: Library Functions649820 -Ref: Library Functions-Footnote-1653427 -Ref: Library Functions-Footnote-2653570 -Node: Library Names653741 -Ref: Library Names-Footnote-1657408 -Ref: Library Names-Footnote-2657631 -Node: General Functions657717 -Node: Strtonum Function658820 -Node: Assert Function661842 -Node: Round Function665168 -Node: Cliff Random Function666708 -Node: Ordinal Functions667724 -Ref: Ordinal Functions-Footnote-1670787 -Ref: Ordinal Functions-Footnote-2671039 -Node: Join Function671249 -Ref: Join Function-Footnote-1673019 -Node: Getlocaltime Function673219 -Node: Readfile Function676961 -Node: Shell Quoting678938 -Node: Data File Management680339 -Node: Filetrans Function680971 -Node: Rewind Function685067 -Node: File Checking686976 -Ref: File Checking-Footnote-1688310 -Node: Empty Files688511 -Node: Ignoring Assigns690490 -Node: Getopt Function692040 -Ref: Getopt Function-Footnote-1707251 -Node: Passwd Functions707451 -Ref: Passwd Functions-Footnote-1716290 -Node: Group Functions716378 -Ref: Group Functions-Footnote-1724276 -Node: Walking Arrays724483 -Node: Library Functions Summary727491 -Node: Library Exercises728897 -Node: Sample Programs729362 -Node: Running Examples730132 -Node: Clones730860 -Node: Cut Program732084 -Node: Egrep Program742224 -Node: Id Program751225 -Node: Split Program761172 -Ref: Split Program-Footnote-1771062 -Node: Tee Program771235 -Node: Uniq Program774025 -Node: Wc Program781613 -Node: Bytes vs. Characters782000 -Node: Using extensions783548 -Node: wc program784302 -Node: Miscellaneous Programs789167 -Node: Dupword Program790380 -Node: Alarm Program792410 -Node: Translate Program797265 -Ref: Translate Program-Footnote-1801830 -Node: Labels Program802100 -Ref: Labels Program-Footnote-1805451 -Node: Word Sorting805535 -Node: History Sorting809607 -Node: Extract Program811832 -Node: Simple Sed819886 -Node: Igawk Program822960 -Ref: Igawk Program-Footnote-1837291 -Ref: Igawk Program-Footnote-2837493 -Ref: Igawk Program-Footnote-3837615 -Node: Anagram Program837730 -Node: Signature Program840792 -Node: Programs Summary842039 -Node: Programs Exercises843253 -Ref: Programs Exercises-Footnote-1847383 -Node: Advanced Features847469 -Node: Nondecimal Data849593 -Node: Boolean Typed Values851191 -Node: Array Sorting852815 -Node: Controlling Array Traversal853520 -Ref: Controlling Array Traversal-Footnote-1861888 -Node: Array Sorting Functions862006 -Ref: Array Sorting Functions-Footnote-1867097 -Node: Two-way I/O867293 -Ref: Two-way I/O-Footnote-1875014 -Ref: Two-way I/O-Footnote-2875201 -Node: TCP/IP Networking875283 -Node: Profiling878401 -Node: Extension Philosophy887710 -Node: Advanced Features Summary889189 -Node: Internationalization891204 -Node: I18N and L10N892684 -Node: Explaining gettext893371 -Ref: Explaining gettext-Footnote-1899263 -Ref: Explaining gettext-Footnote-2899448 -Node: Programmer i18n899613 -Ref: Programmer i18n-Footnote-1904562 -Node: Translator i18n904611 -Node: String Extraction905405 -Ref: String Extraction-Footnote-1906537 -Node: Printf Ordering906623 -Ref: Printf Ordering-Footnote-1909409 -Node: I18N Portability909473 -Ref: I18N Portability-Footnote-1911929 -Node: I18N Example911992 -Ref: I18N Example-Footnote-1915267 -Ref: I18N Example-Footnote-2915340 -Node: Gawk I18N915449 -Node: I18N Summary916098 -Node: Debugger917439 -Node: Debugging918439 -Node: Debugging Concepts918880 -Node: Debugging Terms920689 -Node: Awk Debugging923264 -Ref: Awk Debugging-Footnote-1924209 -Node: Sample Debugging Session924341 -Node: Debugger Invocation924875 -Node: Finding The Bug926261 -Node: List of Debugger Commands932735 -Node: Breakpoint Control934068 -Node: Debugger Execution Control937762 -Node: Viewing And Changing Data941124 -Node: Execution Stack944665 -Node: Debugger Info946302 -Node: Miscellaneous Debugger Commands950373 -Node: Readline Support955435 -Node: Limitations956331 -Node: Debugging Summary958885 -Node: Namespaces960164 -Node: Global Namespace961275 -Node: Qualified Names962673 -Node: Default Namespace963672 -Node: Changing The Namespace964413 -Node: Naming Rules966027 -Node: Internal Name Management967875 -Node: Namespace Example968917 -Node: Namespace And Features971479 -Node: Namespace Summary972914 -Node: Arbitrary Precision Arithmetic974391 -Node: Computer Arithmetic975878 -Ref: table-numeric-ranges979644 -Ref: table-floating-point-ranges980137 -Ref: Computer Arithmetic-Footnote-1980795 -Node: Math Definitions980852 -Ref: table-ieee-formats983828 -Node: MPFR features984395 -Node: FP Math Caution986113 -Ref: FP Math Caution-Footnote-1987185 -Node: Inexactness of computations987554 -Node: Inexact representation988585 -Node: Comparing FP Values989945 -Node: Errors accumulate991186 -Node: Strange values992642 -Ref: Strange values-Footnote-1995230 -Node: Getting Accuracy995335 -Node: Try To Round998045 -Node: Setting precision998944 -Ref: table-predefined-precision-strings999641 -Node: Setting the rounding mode1001471 -Ref: table-gawk-rounding-modes1001845 -Ref: Setting the rounding mode-Footnote-11005776 -Node: Arbitrary Precision Integers1005955 -Ref: Arbitrary Precision Integers-Footnote-11009130 -Node: Checking for MPFR1009279 -Node: POSIX Floating Point Problems1010753 -Ref: POSIX Floating Point Problems-Footnote-11015038 -Node: Floating point summary1015076 -Node: Dynamic Extensions1017266 -Node: Extension Intro1018819 -Node: Plugin License1020085 -Node: Extension Mechanism Outline1020882 -Ref: figure-load-extension1021321 -Ref: figure-register-new-function1022886 -Ref: figure-call-new-function1023978 -Node: Extension API Description1026040 -Node: Extension API Functions Introduction1027753 -Ref: table-api-std-headers1029589 -Node: General Data Types1033838 -Ref: General Data Types-Footnote-11042544 -Node: Memory Allocation Functions1042843 -Ref: Memory Allocation Functions-Footnote-11047344 -Node: Constructor Functions1047443 -Node: API Ownership of MPFR and GMP Values1051096 -Node: Registration Functions1052409 -Node: Extension Functions1053109 -Node: Exit Callback Functions1058431 -Node: Extension Version String1059681 -Node: Input Parsers1060344 -Node: Output Wrappers1073065 -Node: Two-way processors1077577 -Node: Printing Messages1079842 -Ref: Printing Messages-Footnote-11081013 -Node: Updating ERRNO1081166 -Node: Requesting Values1081905 -Ref: table-value-types-returned1082642 -Node: Accessing Parameters1083750 -Node: Symbol Table Access1084987 -Node: Symbol table by name1085499 -Ref: Symbol table by name-Footnote-11088523 -Node: Symbol table by cookie1088651 -Ref: Symbol table by cookie-Footnote-11092836 -Node: Cached values1092900 -Ref: Cached values-Footnote-11096436 -Node: Array Manipulation1096589 -Ref: Array Manipulation-Footnote-11097680 -Node: Array Data Types1097717 -Ref: Array Data Types-Footnote-11100375 -Node: Array Functions1100467 -Node: Flattening Arrays1104965 -Node: Creating Arrays1111941 -Node: Redirection API1116708 -Node: Extension API Variables1119541 -Node: Extension Versioning1120252 -Ref: gawk-api-version1120681 -Node: Extension GMP/MPFR Versioning1122412 -Node: Extension API Informational Variables1124040 -Node: Extension API Boilerplate1125113 -Node: Changes from API V11129087 -Node: Finding Extensions1130659 -Node: Extension Example1131218 -Node: Internal File Description1132016 -Node: Internal File Ops1136096 -Ref: Internal File Ops-Footnote-11147446 -Node: Using Internal File Ops1147586 -Ref: Using Internal File Ops-Footnote-11149969 -Node: Extension Samples1150243 -Node: Extension Sample File Functions1151772 -Node: Extension Sample Fnmatch1159421 -Node: Extension Sample Fork1160908 -Node: Extension Sample Inplace1162126 -Node: Extension Sample Ord1165752 -Node: Extension Sample Readdir1166588 -Ref: table-readdir-file-types1167477 -Node: Extension Sample Revout1168544 -Node: Extension Sample Rev2way1169133 -Node: Extension Sample Read write array1169873 -Node: Extension Sample Readfile1171815 -Node: Extension Sample Time1172910 -Node: Extension Sample API Tests1174662 -Node: gawkextlib1175154 -Node: Extension summary1178072 -Node: Extension Exercises1181774 -Node: Language History1183016 -Node: V7/SVR3.11184672 -Node: SVR41186824 -Node: POSIX1188258 -Node: BTL1189639 -Node: POSIX/GNU1190368 -Node: Feature History1196146 -Node: Common Extensions1212465 -Node: Ranges and Locales1213748 -Ref: Ranges and Locales-Footnote-11218364 -Ref: Ranges and Locales-Footnote-21218391 -Ref: Ranges and Locales-Footnote-31218626 -Node: Contributors1218849 -Node: History summary1224846 -Node: Installation1226226 -Node: Gawk Distribution1227170 -Node: Getting1227654 -Node: Extracting1228617 -Node: Distribution contents1230255 -Node: Unix Installation1236735 -Node: Quick Installation1237417 -Node: Shell Startup Files1239831 -Node: Additional Configuration Options1240920 -Node: Configuration Philosophy1243235 -Node: Non-Unix Installation1245604 -Node: PC Installation1246064 -Node: PC Binary Installation1246902 -Node: PC Compiling1247337 -Node: PC Using1248454 -Node: Cygwin1252007 -Node: MSYS1253231 -Node: VMS Installation1253833 -Node: VMS Compilation1254624 -Ref: VMS Compilation-Footnote-11255853 -Node: VMS Dynamic Extensions1255911 -Node: VMS Installation Details1257596 -Node: VMS Running1259849 -Node: VMS GNV1264128 -Node: VMS Old Gawk1264863 -Node: Bugs1265334 -Node: Bug address1265997 -Node: Usenet1268979 -Node: Maintainers1269983 -Node: Other Versions1271168 -Node: Installation summary1279033 -Node: Notes1280242 -Node: Compatibility Mode1281036 -Node: Additions1281818 -Node: Accessing The Source1282743 -Node: Adding Code1284180 -Node: New Ports1290399 -Node: Derived Files1294774 -Ref: Derived Files-Footnote-11300434 -Ref: Derived Files-Footnote-21300469 -Ref: Derived Files-Footnote-31301067 -Node: Future Extensions1301181 -Node: Implementation Limitations1301839 -Node: Extension Design1303049 -Node: Old Extension Problems1304193 -Ref: Old Extension Problems-Footnote-11305711 -Node: Extension New Mechanism Goals1305768 -Ref: Extension New Mechanism Goals-Footnote-11309132 -Node: Extension Other Design Decisions1309321 -Node: Extension Future Growth1311434 -Node: Notes summary1312040 -Node: Basic Concepts1313198 -Node: Basic High Level1313879 -Ref: figure-general-flow1314161 -Ref: figure-process-flow1314846 -Ref: Basic High Level-Footnote-11318147 -Node: Basic Data Typing1318332 -Node: Glossary1321660 -Node: Copying1353545 -Node: GNU Free Documentation License1391088 -Node: Index1416208 +Node: Numeric Functions545508 +Ref: Numeric Functions-Footnote-1549535 +Ref: Numeric Functions-Footnote-2550183 +Ref: Numeric Functions-Footnote-3550231 +Node: String Functions550503 +Ref: String Functions-Footnote-1574644 +Ref: String Functions-Footnote-2574772 +Ref: String Functions-Footnote-3575020 +Node: Gory Details575107 +Ref: table-sub-escapes576898 +Ref: table-sub-proposed578417 +Ref: table-posix-sub579780 +Ref: table-gensub-escapes581321 +Ref: Gory Details-Footnote-1582144 +Node: I/O Functions582298 +Ref: table-system-return-values588752 +Ref: I/O Functions-Footnote-1590832 +Ref: I/O Functions-Footnote-2590980 +Node: Time Functions591100 +Ref: Time Functions-Footnote-1601771 +Ref: Time Functions-Footnote-2601839 +Ref: Time Functions-Footnote-3601997 +Ref: Time Functions-Footnote-4602108 +Ref: Time Functions-Footnote-5602220 +Ref: Time Functions-Footnote-6602447 +Node: Bitwise Functions602713 +Ref: table-bitwise-ops603307 +Ref: Bitwise Functions-Footnote-1609370 +Ref: Bitwise Functions-Footnote-2609543 +Node: Type Functions609734 +Node: I18N Functions612681 +Node: User-defined614332 +Node: Definition Syntax615144 +Ref: Definition Syntax-Footnote-1620838 +Node: Function Example620909 +Ref: Function Example-Footnote-1623831 +Node: Function Calling623853 +Node: Calling A Function624441 +Node: Variable Scope625399 +Node: Pass By Value/Reference628393 +Node: Function Caveats631037 +Ref: Function Caveats-Footnote-1633084 +Node: Return Statement633204 +Node: Dynamic Typing636183 +Node: Indirect Calls637113 +Ref: Indirect Calls-Footnote-1647368 +Node: Functions Summary647496 +Node: Library Functions650201 +Ref: Library Functions-Footnote-1653808 +Ref: Library Functions-Footnote-2653951 +Node: Library Names654122 +Ref: Library Names-Footnote-1657789 +Ref: Library Names-Footnote-2658012 +Node: General Functions658098 +Node: Strtonum Function659201 +Node: Assert Function662223 +Node: Round Function665549 +Node: Cliff Random Function667089 +Node: Ordinal Functions668105 +Ref: Ordinal Functions-Footnote-1671168 +Ref: Ordinal Functions-Footnote-2671420 +Node: Join Function671630 +Ref: Join Function-Footnote-1673400 +Node: Getlocaltime Function673600 +Node: Readfile Function677342 +Node: Shell Quoting679319 +Node: Data File Management680720 +Node: Filetrans Function681352 +Node: Rewind Function685448 +Node: File Checking687357 +Ref: File Checking-Footnote-1688691 +Node: Empty Files688892 +Node: Ignoring Assigns690871 +Node: Getopt Function692421 +Ref: Getopt Function-Footnote-1707632 +Node: Passwd Functions707832 +Ref: Passwd Functions-Footnote-1716671 +Node: Group Functions716759 +Ref: Group Functions-Footnote-1724657 +Node: Walking Arrays724864 +Node: Library Functions Summary727872 +Node: Library Exercises729278 +Node: Sample Programs729743 +Node: Running Examples730513 +Node: Clones731241 +Node: Cut Program732465 +Node: Egrep Program742605 +Node: Id Program751606 +Node: Split Program761553 +Ref: Split Program-Footnote-1771443 +Node: Tee Program771616 +Node: Uniq Program774406 +Node: Wc Program781994 +Node: Bytes vs. Characters782381 +Node: Using extensions783929 +Node: wc program784683 +Node: Miscellaneous Programs789548 +Node: Dupword Program790761 +Node: Alarm Program792791 +Node: Translate Program797646 +Ref: Translate Program-Footnote-1802211 +Node: Labels Program802481 +Ref: Labels Program-Footnote-1805832 +Node: Word Sorting805916 +Node: History Sorting809988 +Node: Extract Program812213 +Node: Simple Sed820267 +Node: Igawk Program823341 +Ref: Igawk Program-Footnote-1837672 +Ref: Igawk Program-Footnote-2837874 +Ref: Igawk Program-Footnote-3837996 +Node: Anagram Program838111 +Node: Signature Program841173 +Node: Programs Summary842420 +Node: Programs Exercises843634 +Ref: Programs Exercises-Footnote-1847764 +Node: Advanced Features847850 +Node: Nondecimal Data849974 +Node: Boolean Typed Values851572 +Node: Array Sorting853580 +Node: Controlling Array Traversal854285 +Ref: Controlling Array Traversal-Footnote-1862653 +Node: Array Sorting Functions862771 +Ref: Array Sorting Functions-Footnote-1867862 +Node: Two-way I/O868058 +Ref: Two-way I/O-Footnote-1875779 +Ref: Two-way I/O-Footnote-2875966 +Node: TCP/IP Networking876048 +Node: Profiling879166 +Node: Extension Philosophy888475 +Node: Advanced Features Summary889954 +Node: Internationalization891969 +Node: I18N and L10N893449 +Node: Explaining gettext894136 +Ref: Explaining gettext-Footnote-1900028 +Ref: Explaining gettext-Footnote-2900213 +Node: Programmer i18n900378 +Ref: Programmer i18n-Footnote-1905327 +Node: Translator i18n905376 +Node: String Extraction906170 +Ref: String Extraction-Footnote-1907302 +Node: Printf Ordering907388 +Ref: Printf Ordering-Footnote-1910174 +Node: I18N Portability910238 +Ref: I18N Portability-Footnote-1912694 +Node: I18N Example912757 +Ref: I18N Example-Footnote-1916032 +Ref: I18N Example-Footnote-2916105 +Node: Gawk I18N916214 +Node: I18N Summary916863 +Node: Debugger918204 +Node: Debugging919204 +Node: Debugging Concepts919645 +Node: Debugging Terms921454 +Node: Awk Debugging924029 +Ref: Awk Debugging-Footnote-1924974 +Node: Sample Debugging Session925106 +Node: Debugger Invocation925640 +Node: Finding The Bug927026 +Node: List of Debugger Commands933500 +Node: Breakpoint Control934833 +Node: Debugger Execution Control938527 +Node: Viewing And Changing Data941889 +Node: Execution Stack945430 +Node: Debugger Info947067 +Node: Miscellaneous Debugger Commands951138 +Node: Readline Support956200 +Node: Limitations957096 +Node: Debugging Summary959650 +Node: Namespaces960929 +Node: Global Namespace962040 +Node: Qualified Names963438 +Node: Default Namespace964437 +Node: Changing The Namespace965178 +Node: Naming Rules966792 +Node: Internal Name Management968640 +Node: Namespace Example969682 +Node: Namespace And Features972244 +Node: Namespace Summary973679 +Node: Arbitrary Precision Arithmetic975156 +Node: Computer Arithmetic976643 +Ref: table-numeric-ranges980409 +Ref: table-floating-point-ranges980902 +Ref: Computer Arithmetic-Footnote-1981560 +Node: Math Definitions981617 +Ref: table-ieee-formats984593 +Node: MPFR features985160 +Node: FP Math Caution986878 +Ref: FP Math Caution-Footnote-1987950 +Node: Inexactness of computations988319 +Node: Inexact representation989350 +Node: Comparing FP Values990710 +Node: Errors accumulate991951 +Node: Strange values993407 +Ref: Strange values-Footnote-1995995 +Node: Getting Accuracy996100 +Node: Try To Round998810 +Node: Setting precision999709 +Ref: table-predefined-precision-strings1000406 +Node: Setting the rounding mode1002236 +Ref: table-gawk-rounding-modes1002610 +Ref: Setting the rounding mode-Footnote-11006541 +Node: Arbitrary Precision Integers1006720 +Ref: Arbitrary Precision Integers-Footnote-11009895 +Node: Checking for MPFR1010044 +Node: POSIX Floating Point Problems1011518 +Ref: POSIX Floating Point Problems-Footnote-11015803 +Node: Floating point summary1015841 +Node: Dynamic Extensions1018031 +Node: Extension Intro1019584 +Node: Plugin License1020850 +Node: Extension Mechanism Outline1021647 +Ref: figure-load-extension1022086 +Ref: figure-register-new-function1023651 +Ref: figure-call-new-function1024743 +Node: Extension API Description1026805 +Node: Extension API Functions Introduction1028518 +Ref: table-api-std-headers1030354 +Node: General Data Types1034603 +Ref: General Data Types-Footnote-11043309 +Node: Memory Allocation Functions1043608 +Ref: Memory Allocation Functions-Footnote-11048109 +Node: Constructor Functions1048208 +Node: API Ownership of MPFR and GMP Values1051861 +Node: Registration Functions1053174 +Node: Extension Functions1053874 +Node: Exit Callback Functions1059196 +Node: Extension Version String1060446 +Node: Input Parsers1061109 +Node: Output Wrappers1073830 +Node: Two-way processors1078342 +Node: Printing Messages1080607 +Ref: Printing Messages-Footnote-11081778 +Node: Updating ERRNO1081931 +Node: Requesting Values1082670 +Ref: table-value-types-returned1083407 +Node: Accessing Parameters1084515 +Node: Symbol Table Access1085752 +Node: Symbol table by name1086264 +Ref: Symbol table by name-Footnote-11089288 +Node: Symbol table by cookie1089416 +Ref: Symbol table by cookie-Footnote-11093601 +Node: Cached values1093665 +Ref: Cached values-Footnote-11097201 +Node: Array Manipulation1097354 +Ref: Array Manipulation-Footnote-11098445 +Node: Array Data Types1098482 +Ref: Array Data Types-Footnote-11101140 +Node: Array Functions1101232 +Node: Flattening Arrays1105730 +Node: Creating Arrays1112706 +Node: Redirection API1117473 +Node: Extension API Variables1120306 +Node: Extension Versioning1121017 +Ref: gawk-api-version1121446 +Node: Extension GMP/MPFR Versioning1123177 +Node: Extension API Informational Variables1124805 +Node: Extension API Boilerplate1125878 +Node: Changes from API V11129852 +Node: Finding Extensions1131424 +Node: Extension Example1131983 +Node: Internal File Description1132781 +Node: Internal File Ops1136861 +Ref: Internal File Ops-Footnote-11148211 +Node: Using Internal File Ops1148351 +Ref: Using Internal File Ops-Footnote-11150734 +Node: Extension Samples1151008 +Node: Extension Sample File Functions1152537 +Node: Extension Sample Fnmatch1160186 +Node: Extension Sample Fork1161673 +Node: Extension Sample Inplace1162891 +Node: Extension Sample Ord1166517 +Node: Extension Sample Readdir1167353 +Ref: table-readdir-file-types1168242 +Node: Extension Sample Revout1169309 +Node: Extension Sample Rev2way1169898 +Node: Extension Sample Read write array1170638 +Node: Extension Sample Readfile1172580 +Node: Extension Sample Time1173675 +Node: Extension Sample API Tests1175427 +Node: gawkextlib1175919 +Node: Extension summary1178837 +Node: Extension Exercises1182539 +Node: Language History1183781 +Node: V7/SVR3.11185437 +Node: SVR41187589 +Node: POSIX1189023 +Node: BTL1190404 +Node: POSIX/GNU1191133 +Node: Feature History1196911 +Node: Common Extensions1213230 +Node: Ranges and Locales1214513 +Ref: Ranges and Locales-Footnote-11219129 +Ref: Ranges and Locales-Footnote-21219156 +Ref: Ranges and Locales-Footnote-31219391 +Node: Contributors1219614 +Node: History summary1225611 +Node: Installation1226991 +Node: Gawk Distribution1227935 +Node: Getting1228419 +Node: Extracting1229382 +Node: Distribution contents1231020 +Node: Unix Installation1237500 +Node: Quick Installation1238182 +Node: Shell Startup Files1240596 +Node: Additional Configuration Options1241685 +Node: Configuration Philosophy1244000 +Node: Non-Unix Installation1246369 +Node: PC Installation1246829 +Node: PC Binary Installation1247667 +Node: PC Compiling1248102 +Node: PC Using1249219 +Node: Cygwin1252772 +Node: MSYS1253996 +Node: VMS Installation1254598 +Node: VMS Compilation1255389 +Ref: VMS Compilation-Footnote-11256618 +Node: VMS Dynamic Extensions1256676 +Node: VMS Installation Details1258361 +Node: VMS Running1260614 +Node: VMS GNV1264893 +Node: VMS Old Gawk1265628 +Node: Bugs1266099 +Node: Bug address1266762 +Node: Usenet1269744 +Node: Maintainers1270748 +Node: Other Versions1271933 +Node: Installation summary1279798 +Node: Notes1281007 +Node: Compatibility Mode1281801 +Node: Additions1282583 +Node: Accessing The Source1283508 +Node: Adding Code1284945 +Node: New Ports1291164 +Node: Derived Files1295539 +Ref: Derived Files-Footnote-11301199 +Ref: Derived Files-Footnote-21301234 +Ref: Derived Files-Footnote-31301832 +Node: Future Extensions1301946 +Node: Implementation Limitations1302604 +Node: Extension Design1303814 +Node: Old Extension Problems1304958 +Ref: Old Extension Problems-Footnote-11306476 +Node: Extension New Mechanism Goals1306533 +Ref: Extension New Mechanism Goals-Footnote-11309897 +Node: Extension Other Design Decisions1310086 +Node: Extension Future Growth1312199 +Node: Notes summary1312805 +Node: Basic Concepts1313963 +Node: Basic High Level1314644 +Ref: figure-general-flow1314926 +Ref: figure-process-flow1315611 +Ref: Basic High Level-Footnote-11318912 +Node: Basic Data Typing1319097 +Node: Glossary1322425 +Node: Copying1354310 +Node: GNU Free Documentation License1391853 +Node: Index1416973 End Tag Table |