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Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 711 |
1 files changed, 356 insertions, 355 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index 24a4a638..685df45b 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -12031,7 +12031,17 @@ brackets ([ ]): `cos(X)' Return the cosine of X, with X in radians. -`div(NUMERATOR, DENOMINATOR, RESULT)' +`exp(X)' + Return the exponential of X (`e ^ X') or report an error if X is + out of range. The range of values X can have depends on your + machine's floating-point representation. + +`int(X)' + Return the nearest integer to X, located between X and zero and + truncated toward zero. For example, `int(3)' is 3, `int(3.9)' is + 3, `int(-3.9)' is -3, and `int(-3)' is -3 as well. + +`intdiv(NUMERATOR, DENOMINATOR, RESULT)' Perform integer division, similar to the standard C function of the same name. First, truncate `numerator' and `denominator' towards zero, creating integer values. Clear the `result' array, and then @@ -12046,16 +12056,6 @@ brackets ([ ]): This function is a `gawk' extension. It is not available in compatibility mode (*note Options::). -`exp(X)' - Return the exponential of X (`e ^ X') or report an error if X is - out of range. The range of values X can have depends on your - machine's floating-point representation. - -`int(X)' - Return the nearest integer to X, located between X and zero and - truncated toward zero. For example, `int(3)' is 3, `int(3.9)' is - 3, `int(-3.9)' is -3, and `int(-3)' is -3 as well. - `log(X)' Return the natural logarithm of X, if X is positive; otherwise, return `NaN' ("not a number") on IEEE 754 systems. Additionally, @@ -22618,14 +22618,15 @@ the following: `%', the result is typically an arbitrary precision floating point value (unless the denominator evenly divides into the numerator). In order to do integer division or remainder with arbitrary precision -integers, use the built-in `div()' function (*note Numeric Functions::). +integers, use the built-in `intdiv()' function (*note Numeric +Functions::). - You can simulate the `div()' function in standard `awk' using this -user-defined function: + You can simulate the `intdiv()' function in standard `awk' using +this user-defined function: - # div --- do integer division + # intdiv --- do integer division - function div(numerator, denominator, result) + function intdiv(numerator, denominator, result) { split("", result) @@ -22638,8 +22639,8 @@ user-defined function: } The following example program, contributed by Katie Wasserman, uses -`div()' to compute the digits of pi to as many places as you choose to -set: +`intdiv()' to compute the digits of pi to as many places as you choose +to set: # pi.awk --- compute the digits of pi @@ -22650,7 +22651,7 @@ set: for (m = digits * 4; m > 0; --m) { d = m * 2 + 1 x = pi * m - div(x, d, result) + intdiv(x, d, result) pi = result["quotient"] pi = pi + two } @@ -26752,8 +26753,8 @@ the current version of `gawk'. - The `bindtextdomain()', `dcgettext()', and `dcngettext()' functions for internationalization (*note Programmer i18n::) - - The `div()' function for doing integer division and remainder - (*note Numeric Functions::) + - The `intdiv()' function for doing integer division and + remainder (*note Numeric Functions::) * Changes and/or additions in the command-line options: @@ -27213,7 +27214,7 @@ in POSIX `awk', in the order they were added to `gawk'. * The `igawk' program and its manual page are no longer installed when `gawk' is built. *Note Igawk Program::. - * The `div()' function. *Note Numeric Functions::. + * The `intdiv()' function. *Note Numeric Functions::. * The maximum number of hexdecimal digits in `\x' escapes is now two. *Note Escape Sequences::. @@ -32941,7 +32942,6 @@ Index * display debugger command: Viewing And Changing Data. (line 8) * display debugger options: Debugger Info. (line 57) -* div: Numeric Functions. (line 18) * division: Arithmetic Ops. (line 44) * do-while statement: Do Statement. (line 6) * do-while statement, use of regexps in: Regexp Usage. (line 19) @@ -33061,10 +33061,10 @@ Index * exit status, of VMS: VMS Running. (line 28) * exit the debugger: Miscellaneous Debugger Commands. (line 99) -* exp: Numeric Functions. (line 33) +* exp: Numeric Functions. (line 18) * expand utility: Very Simple. (line 73) * Expat XML parser library: gawkextlib. (line 37) -* exponent: Numeric Functions. (line 33) +* exponent: Numeric Functions. (line 18) * expressions: Expressions. (line 6) * expressions, as patterns: Expression Patterns. (line 6) * expressions, assignment: Assignment Ops. (line 6) @@ -33608,8 +33608,9 @@ Index * installation, VMS: VMS Installation. (line 6) * installing gawk: Installation. (line 6) * instruction tracing, in debugger: Debugger Info. (line 90) -* int: Numeric Functions. (line 38) +* int: Numeric Functions. (line 23) * INT signal (MS-Windows): Profiling. (line 213) +* intdiv: Numeric Functions. (line 28) * integer array indices: Numeric Array Subscripts. (line 31) * integers, arbitrary precision: Arbitrary Precision Integers. @@ -34349,7 +34350,7 @@ Index * Robbins, Miriam <2>: Getline/Pipe. (line 39) * Robbins, Miriam: Acknowledgments. (line 94) * Rommel, Kai Uwe: Contributors. (line 42) -* round to nearest integer: Numeric Functions. (line 38) +* round to nearest integer: Numeric Functions. (line 23) * round() user-defined function: Round Function. (line 16) * rounding numbers: Round Function. (line 6) * ROUNDMODE variable: User-modified. (line 127) @@ -35126,333 +35127,333 @@ Node: Functions504950 Node: Built-in505989 Node: Calling Built-in507067 Node: Numeric Functions509062 -Ref: Numeric Functions-Footnote-1513892 -Ref: Numeric Functions-Footnote-2514249 -Ref: Numeric Functions-Footnote-3514297 -Node: String Functions514569 -Ref: String Functions-Footnote-1538070 -Ref: String Functions-Footnote-2538199 -Ref: String Functions-Footnote-3538447 -Node: Gory Details538534 -Ref: table-sub-escapes540315 -Ref: table-sub-proposed541830 -Ref: table-posix-sub543192 -Ref: table-gensub-escapes544729 -Ref: Gory Details-Footnote-1545562 -Node: I/O Functions545713 -Ref: I/O Functions-Footnote-1552949 -Node: Time Functions553096 -Ref: Time Functions-Footnote-1563605 -Ref: Time Functions-Footnote-2563673 -Ref: Time Functions-Footnote-3563831 -Ref: Time Functions-Footnote-4563942 -Ref: Time Functions-Footnote-5564054 -Ref: Time Functions-Footnote-6564281 -Node: Bitwise Functions564547 -Ref: table-bitwise-ops565109 -Ref: Bitwise Functions-Footnote-1569437 -Node: Type Functions569609 -Node: I18N Functions570761 -Node: User-defined572408 -Node: Definition Syntax573213 -Ref: Definition Syntax-Footnote-1578872 -Node: Function Example578943 -Ref: Function Example-Footnote-1581864 -Node: Function Caveats581886 -Node: Calling A Function582404 -Node: Variable Scope583362 -Node: Pass By Value/Reference586355 -Node: Return Statement589852 -Node: Dynamic Typing592831 -Node: Indirect Calls593760 -Ref: Indirect Calls-Footnote-1604003 -Node: Functions Summary604131 -Node: Library Functions606833 -Ref: Library Functions-Footnote-1610441 -Ref: Library Functions-Footnote-2610584 -Node: Library Names610755 -Ref: Library Names-Footnote-1614213 -Ref: Library Names-Footnote-2614436 -Node: General Functions614522 -Node: Strtonum Function615625 -Node: Assert Function618647 -Node: Round Function621971 -Node: Cliff Random Function623512 -Node: Ordinal Functions624528 -Ref: Ordinal Functions-Footnote-1627591 -Ref: Ordinal 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-Ref: Two-way I/O-Footnote-1803679 -Ref: Two-way I/O-Footnote-2803865 -Node: TCP/IP Networking803947 -Node: Profiling806819 -Node: Advanced Features Summary815090 -Node: Internationalization817023 -Node: I18N and L10N818503 -Node: Explaining gettext819189 -Ref: Explaining gettext-Footnote-1824214 -Ref: Explaining gettext-Footnote-2824398 -Node: Programmer i18n824563 -Ref: Programmer i18n-Footnote-1829439 -Node: Translator i18n829488 -Node: String Extraction830282 -Ref: String Extraction-Footnote-1831413 -Node: Printf Ordering831499 -Ref: Printf Ordering-Footnote-1834285 -Node: I18N Portability834349 -Ref: I18N Portability-Footnote-1836805 -Node: I18N Example836868 -Ref: I18N Example-Footnote-1839671 -Node: Gawk I18N839743 -Node: I18N Summary840387 -Node: Debugger841727 -Node: Debugging842749 -Node: Debugging Concepts843190 -Node: Debugging Terms845000 -Node: Awk Debugging847572 -Node: Sample Debugging Session848478 -Node: Debugger Invocation849012 -Node: Finding The Bug850397 -Node: List of Debugger Commands856876 -Node: Breakpoint Control858208 -Node: Debugger Execution Control861885 -Node: Viewing And Changing Data865244 -Node: Execution Stack868620 -Node: Debugger Info870255 -Node: Miscellaneous Debugger Commands874300 -Node: Readline Support879301 -Node: Limitations880195 -Node: Debugging Summary882310 -Node: Arbitrary Precision Arithmetic883484 -Node: Computer Arithmetic884900 -Ref: table-numeric-ranges888477 -Ref: Computer Arithmetic-Footnote-1889001 -Node: Math Definitions889058 -Ref: table-ieee-formats892353 -Ref: Math Definitions-Footnote-1892957 -Node: MPFR features893062 -Node: FP Math Caution894733 -Ref: FP Math Caution-Footnote-1895783 -Node: Inexactness of computations896152 -Node: Inexact representation897111 -Node: Comparing FP Values898469 -Node: Errors accumulate899551 -Node: Getting Accuracy900983 -Node: Try To Round903687 -Node: Setting precision904586 -Ref: table-predefined-precision-strings905270 -Node: Setting the rounding mode907099 -Ref: table-gawk-rounding-modes907463 -Ref: Setting the rounding mode-Footnote-1910915 -Node: Arbitrary Precision Integers911094 -Ref: Arbitrary Precision Integers-Footnote-1915992 -Node: POSIX Floating Point Problems916141 -Ref: POSIX Floating Point Problems-Footnote-1920020 -Node: Floating point summary920058 -Node: Dynamic Extensions922245 -Node: Extension Intro923797 -Node: Plugin License925062 -Node: Extension Mechanism Outline925859 -Ref: figure-load-extension926287 -Ref: figure-register-new-function927767 -Ref: figure-call-new-function928771 -Node: Extension API Description930758 -Node: Extension API Functions Introduction932292 -Node: General Data Types937161 -Ref: General Data Types-Footnote-1943061 -Node: Memory Allocation Functions943360 -Ref: Memory Allocation Functions-Footnote-1946199 -Node: Constructor Functions946298 -Node: Registration Functions948037 -Node: Extension Functions948722 -Node: Exit Callback Functions951019 -Node: Extension Version String952267 -Node: Input 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+Node: Split Program706434 +Ref: Split Program-Footnote-1709888 +Node: Tee Program710016 +Node: Uniq Program712805 +Node: Wc Program720224 +Ref: Wc Program-Footnote-1724474 +Node: Miscellaneous Programs724568 +Node: Dupword Program725781 +Node: Alarm Program727812 +Node: Translate Program732617 +Ref: Translate Program-Footnote-1737180 +Node: Labels Program737450 +Ref: Labels Program-Footnote-1740801 +Node: Word Sorting740885 +Node: History Sorting744955 +Node: Extract Program746790 +Node: Simple Sed754314 +Node: Igawk Program757384 +Ref: Igawk Program-Footnote-1771710 +Ref: Igawk Program-Footnote-2771911 +Ref: Igawk Program-Footnote-3772033 +Node: Anagram Program772148 +Node: Signature Program775209 +Node: Programs Summary776456 +Node: Programs Exercises777677 +Ref: Programs Exercises-Footnote-1781808 +Node: Advanced Features781899 +Node: Nondecimal Data783881 +Node: Array Sorting785471 +Node: Controlling Array Traversal786171 +Ref: Controlling Array Traversal-Footnote-1794537 +Node: 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Sample Debugging Session848481 +Node: Debugger Invocation849015 +Node: Finding The Bug850400 +Node: List of Debugger Commands856879 +Node: Breakpoint Control858211 +Node: Debugger Execution Control861888 +Node: Viewing And Changing Data865247 +Node: Execution Stack868623 +Node: Debugger Info870258 +Node: Miscellaneous Debugger Commands874303 +Node: Readline Support879304 +Node: Limitations880198 +Node: Debugging Summary882313 +Node: Arbitrary Precision Arithmetic883487 +Node: Computer Arithmetic884903 +Ref: table-numeric-ranges888480 +Ref: Computer Arithmetic-Footnote-1889004 +Node: Math Definitions889061 +Ref: table-ieee-formats892356 +Ref: Math Definitions-Footnote-1892960 +Node: MPFR features893065 +Node: FP Math Caution894736 +Ref: FP Math Caution-Footnote-1895786 +Node: Inexactness of computations896155 +Node: Inexact representation897114 +Node: Comparing FP Values898472 +Node: Errors accumulate899554 +Node: Getting Accuracy900986 +Node: Try To Round903690 +Node: Setting 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Extension API Boilerplate1010637 +Node: Finding Extensions1014446 +Node: Extension Example1015006 +Node: Internal File Description1015778 +Node: Internal File Ops1019845 +Ref: Internal File Ops-Footnote-11031596 +Node: Using Internal File Ops1031736 +Ref: Using Internal File Ops-Footnote-11034119 +Node: Extension Samples1034392 +Node: Extension Sample File Functions1035920 +Node: Extension Sample Fnmatch1043601 +Node: Extension Sample Fork1045089 +Node: Extension Sample Inplace1046304 +Node: Extension Sample Ord1048390 +Node: Extension Sample Readdir1049226 +Ref: table-readdir-file-types1050103 +Node: Extension Sample Revout1050914 +Node: Extension Sample Rev2way1051503 +Node: Extension Sample Read write array1052243 +Node: Extension Sample Readfile1054183 +Node: Extension Sample Time1055278 +Node: Extension Sample API Tests1056626 +Node: gawkextlib1057117 +Node: Extension summary1059818 +Node: Extension Exercises1063507 +Node: Language History1065003 +Node: V7/SVR3.11066659 +Node: SVR41068812 +Node: POSIX1070246 +Node: BTL1071627 +Node: POSIX/GNU1072358 +Node: Feature History1078197 +Node: Common Extensions1091994 +Node: Ranges and Locales1093366 +Ref: Ranges and Locales-Footnote-11097985 +Ref: Ranges and Locales-Footnote-21098012 +Ref: Ranges and Locales-Footnote-31098247 +Node: Contributors1098468 +Node: History summary1104008 +Node: Installation1105387 +Node: Gawk Distribution1106333 +Node: Getting1106817 +Node: Extracting1107640 +Node: Distribution contents1109277 +Node: Unix Installation1115379 +Node: Quick Installation1116062 +Node: Shell Startup Files1118473 +Node: Additional Configuration Options1119552 +Node: Configuration Philosophy1121356 +Node: Non-Unix Installation1123725 +Node: PC Installation1124183 +Node: PC Binary Installation1125503 +Node: PC Compiling1127351 +Ref: PC Compiling-Footnote-11130372 +Node: PC Testing1130481 +Node: PC Using1131657 +Node: Cygwin1135772 +Node: MSYS1136542 +Node: VMS Installation1137043 +Node: VMS Compilation1137835 +Ref: VMS Compilation-Footnote-11139064 +Node: VMS Dynamic Extensions1139122 +Node: VMS Installation Details1140806 +Node: VMS Running1143057 +Node: VMS GNV1145897 +Node: VMS Old Gawk1146632 +Node: Bugs1147102 +Node: Other Versions1150991 +Node: Installation summary1157425 +Node: Notes1158484 +Node: Compatibility Mode1159349 +Node: Additions1160131 +Node: Accessing The Source1161056 +Node: Adding Code1162491 +Node: New Ports1168648 +Node: Derived Files1173130 +Ref: Derived Files-Footnote-11178605 +Ref: Derived Files-Footnote-21178639 +Ref: Derived Files-Footnote-31179235 +Node: Future Extensions1179349 +Node: Implementation Limitations1179955 +Node: Extension Design1181203 +Node: Old Extension Problems1182357 +Ref: Old Extension Problems-Footnote-11183874 +Node: Extension New Mechanism Goals1183931 +Ref: Extension New Mechanism Goals-Footnote-11187291 +Node: Extension Other Design Decisions1187480 +Node: Extension Future Growth1189588 +Node: Old Extension Mechanism1190424 +Node: Notes summary1192186 +Node: Basic Concepts1193372 +Node: Basic High Level1194053 +Ref: figure-general-flow1194325 +Ref: figure-process-flow1194924 +Ref: Basic High Level-Footnote-11198153 +Node: Basic Data Typing1198338 +Node: Glossary1201666 +Node: Copying1233595 +Node: GNU Free Documentation License1271151 +Node: Index1296287 End Tag Table |