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Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 775 |
1 files changed, 392 insertions, 383 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index 8c13d181..dc0a7591 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -9809,9 +9809,18 @@ with a pound sign (`#'). An associative array containing the values of the environment. The array indices are the environment variable names; the elements are the values of the particular environment variables. For - example, `ENVIRON["HOME"]' might be `/home/arnold'. Changing this - array does not affect the environment passed on to any programs - that `awk' may spawn via redirection or the `system()' function. + example, `ENVIRON["HOME"]' might be `/home/arnold'. + + For POSIX `awk', changing this array does not affect the + environment passed on to any programs that `awk' may spawn via + redirection or the `system()' function. + + However, beginning with version 4.2, if not in POSIX compatibility + mode, `gawk' does update its own environment when `ENVIRON' is + changed, thus changing the environment seen by programs that it + creates. You should therefore be especially careful if you modify + `ENVIRON["PATH"]"', which is the search path for finding + executable programs. Some operating systems may not have environment variables. On such systems, the `ENVIRON' array is empty (except for @@ -30969,9 +30978,9 @@ Index * dark corner, exit statement: Exit Statement. (line 30) * dark corner, field separators: Field Splitting Summary. (line 46) -* dark corner, FILENAME variable <1>: Auto-set. (line 93) +* dark corner, FILENAME variable <1>: Auto-set. (line 102) * dark corner, FILENAME variable: Getline Notes. (line 19) -* dark corner, FNR/NR variables: Auto-set. (line 314) +* dark corner, FNR/NR variables: Auto-set. (line 323) * dark corner, format-control characters: Control Letters. (line 18) * dark corner, FS as null string: Single Character Fields. (line 20) @@ -31155,12 +31164,12 @@ Index (line 81) * differences in awk and gawk, command line directories: Command line directories. (line 6) -* differences in awk and gawk, ERRNO variable: Auto-set. (line 73) +* differences in awk and gawk, ERRNO variable: Auto-set. (line 82) * differences in awk and gawk, error messages: Special FD. (line 16) * differences in awk and gawk, FIELDWIDTHS variable: User-modified. (line 35) * differences in awk and gawk, FPAT variable: User-modified. (line 45) -* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 119) +* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 128) * differences in awk and gawk, function arguments (gawk): Calling Built-in. (line 16) * differences in awk and gawk, getline command: Getline. (line 19) @@ -31183,7 +31192,7 @@ Index (line 257) * differences in awk and gawk, print/printf statements: Format Modifiers. (line 13) -* differences in awk and gawk, PROCINFO array: Auto-set. (line 133) +* differences in awk and gawk, PROCINFO array: Auto-set. (line 142) * differences in awk and gawk, read timeouts: Read Timeout. (line 6) * differences in awk and gawk, record separators: awk split records. (line 124) @@ -31193,7 +31202,7 @@ Index (line 26) * differences in awk and gawk, RS/RT variables: gawk split records. (line 58) -* differences in awk and gawk, RT variable: Auto-set. (line 266) +* differences in awk and gawk, RT variable: Auto-set. (line 275) * differences in awk and gawk, single-character fields: Single Character Fields. (line 6) * differences in awk and gawk, split() function: String Functions. @@ -31201,7 +31210,7 @@ Index * differences in awk and gawk, strings: Scalar Constants. (line 20) * differences in awk and gawk, strings, storing: gawk split records. (line 77) -* differences in awk and gawk, SYMTAB variable: Auto-set. (line 274) +* differences in awk and gawk, SYMTAB variable: Auto-set. (line 283) * differences in awk and gawk, TEXTDOMAIN variable: User-modified. (line 162) * differences in awk and gawk, trunc-mod operation: Arithmetic Ops. @@ -31242,8 +31251,8 @@ Index * dynamically loaded extensions: Dynamic Extensions. (line 6) * e debugger command (alias for enable): Breakpoint Control. (line 73) * EBCDIC: Ordinal Functions. (line 45) -* effective group ID of gawk user: Auto-set. (line 138) -* effective user ID of gawk user: Auto-set. (line 142) +* effective group ID of gawk user: Auto-set. (line 147) +* effective user ID of gawk user: Auto-set. (line 151) * egrep utility <1>: Egrep Program. (line 6) * egrep utility: Bracket Expressions. (line 24) * egrep.awk program: Egrep Program. (line 54) @@ -31298,13 +31307,13 @@ Index (line 11) * EREs (Extended Regular Expressions): Bracket Expressions. (line 24) * ERRNO variable <1>: TCP/IP Networking. (line 54) -* ERRNO variable: Auto-set. (line 73) +* ERRNO variable: Auto-set. (line 82) * ERRNO variable, with BEGINFILE pattern: BEGINFILE/ENDFILE. (line 26) * ERRNO variable, with close() function: Close Files And Pipes. (line 139) * ERRNO variable, with getline command: Getline. (line 19) * error handling: Special FD. (line 16) -* error handling, ERRNO variable and: Auto-set. (line 73) +* error handling, ERRNO variable and: Auto-set. (line 82) * error output: Special FD. (line 6) * escape processing, gsub()/gensub()/sub() functions: Gory Details. (line 6) @@ -31358,7 +31367,7 @@ Index (line 6) * extension API version: Extension Versioning. (line 6) -* extension API, version number: Auto-set. (line 229) +* extension API, version number: Auto-set. (line 238) * extension example: Extension Example. (line 6) * extension registration: Registration Functions. (line 6) @@ -31437,7 +31446,7 @@ Index * file names, distinguishing: Auto-set. (line 52) * file names, in compatibility mode: Special Caveats. (line 9) * file names, standard streams in gawk: Special FD. (line 46) -* FILENAME variable <1>: Auto-set. (line 93) +* FILENAME variable <1>: Auto-set. (line 102) * FILENAME variable: Reading Files. (line 6) * FILENAME variable, getline, setting with: Getline Notes. (line 19) * filenames, assignments as: Ignoring Assigns. (line 6) @@ -31507,9 +31516,9 @@ Index * flush buffered output: I/O Functions. (line 25) * fnmatch() extension function: Extension Sample Fnmatch. (line 12) -* FNR variable <1>: Auto-set. (line 103) +* FNR variable <1>: Auto-set. (line 112) * FNR variable: Records. (line 6) -* FNR variable, changing: Auto-set. (line 314) +* FNR variable, changing: Auto-set. (line 323) * for statement: For Statement. (line 6) * for statement, looping over arrays: Scanning an Array. (line 20) * fork() extension function: Extension Sample Fork. @@ -31559,7 +31568,7 @@ Index * FSF (Free Software Foundation): Manual History. (line 6) * fts() extension function: Extension Sample File Functions. (line 77) -* FUNCTAB array: Auto-set. (line 119) +* FUNCTAB array: Auto-set. (line 128) * function calls: Function Calls. (line 6) * function calls, indirect: Indirect Calls. (line 6) * function definition example: Function Example. (line 6) @@ -31609,7 +31618,7 @@ Index * G-d: Acknowledgments. (line 78) * Garfinkle, Scott: Contributors. (line 34) * gawk program, dynamic profiling: Profiling. (line 179) -* gawk version: Auto-set. (line 204) +* gawk version: Auto-set. (line 213) * gawk, ARGIND variable in: Other Arguments. (line 12) * gawk, awk and <1>: This Manual. (line 14) * gawk, awk and: Preface. (line 23) @@ -31630,7 +31639,7 @@ Index * gawk, distribution: Distribution contents. (line 6) * gawk, ERRNO variable in <1>: TCP/IP Networking. (line 54) -* gawk, ERRNO variable in <2>: Auto-set. (line 73) +* gawk, ERRNO variable in <2>: Auto-set. (line 82) * gawk, ERRNO variable in <3>: BEGINFILE/ENDFILE. (line 26) * gawk, ERRNO variable in <4>: Close Files And Pipes. (line 139) @@ -31647,7 +31656,7 @@ Index * gawk, FPAT variable in <1>: User-modified. (line 45) * gawk, FPAT variable in: Splitting By Content. (line 27) -* gawk, FUNCTAB array in: Auto-set. (line 119) +* gawk, FUNCTAB array in: Auto-set. (line 128) * gawk, function arguments and: Calling Built-in. (line 16) * gawk, hexadecimal numbers and: Nondecimal-numbers. (line 42) * gawk, IGNORECASE variable in <1>: Array Sorting Functions. @@ -31678,7 +31687,7 @@ Index * gawk, OS/2 version of: PC Using. (line 10) * gawk, PROCINFO array in <1>: Two-way I/O. (line 116) * gawk, PROCINFO array in <2>: Time Functions. (line 47) -* gawk, PROCINFO array in: Auto-set. (line 133) +* gawk, PROCINFO array in: Auto-set. (line 142) * gawk, regexp constants and: Using Constant Regexps. (line 28) * gawk, regular expressions, case sensitivity: Case-sensitivity. @@ -31686,14 +31695,14 @@ Index * gawk, regular expressions, operators: GNU Regexp Operators. (line 6) * gawk, regular expressions, precedence: Regexp Operators. (line 162) -* gawk, RT variable in <1>: Auto-set. (line 266) +* gawk, RT variable in <1>: Auto-set. (line 275) * gawk, RT variable in <2>: Multiple Line. (line 129) * gawk, RT variable in: awk split records. (line 124) * gawk, See Also awk: Preface. (line 36) * gawk, source code, obtaining: Getting. (line 6) * gawk, splitting fields and: Constant Size. (line 88) * gawk, string-translation functions: I18N Functions. (line 6) -* gawk, SYMTAB array in: Auto-set. (line 274) +* gawk, SYMTAB array in: Auto-set. (line 283) * gawk, TEXTDOMAIN variable in: User-modified. (line 162) * gawk, timestamps: Time Functions. (line 6) * gawk, uses for: Preface. (line 36) @@ -31780,7 +31789,7 @@ Index * Grigera, Juan: Contributors. (line 57) * group database, reading: Group Functions. (line 6) * group file: Group Functions. (line 6) -* group ID of gawk user: Auto-set. (line 177) +* group ID of gawk user: Auto-set. (line 186) * groups, information about: Group Functions. (line 6) * gsub <1>: String Functions. (line 135) * gsub: Using Constant Regexps. @@ -32075,7 +32084,7 @@ Index * mawk utility <3>: Concatenation. (line 36) * mawk utility <4>: Getline/Pipe. (line 62) * mawk utility: Escape Sequences. (line 124) -* maximum precision supported by MPFR library: Auto-set. (line 218) +* maximum precision supported by MPFR library: Auto-set. (line 227) * McPhee, Patrick: Contributors. (line 100) * message object files: Explaining gettext. (line 41) * message object files, converting from portable object files: I18N Example. @@ -32087,7 +32096,7 @@ Index * messages from extensions: Printing Messages. (line 6) * metacharacters in regular expressions: Regexp Operators. (line 6) * metacharacters, escape sequences for: Escape Sequences. (line 130) -* minimum precision supported by MPFR library: Auto-set. (line 221) +* minimum precision supported by MPFR library: Auto-set. (line 230) * mktime: Time Functions. (line 25) * modifiers, in format specifiers: Format Modifiers. (line 6) * monetary information, localization: Explaining gettext. (line 103) @@ -32141,7 +32150,7 @@ Index (line 47) * nexti debugger command: Debugger Execution Control. (line 49) -* NF variable <1>: Auto-set. (line 108) +* NF variable <1>: Auto-set. (line 117) * NF variable: Fields. (line 33) * NF variable, decrementing: Changing Fields. (line 107) * ni debugger command (alias for nexti): Debugger Execution Control. @@ -32150,9 +32159,9 @@ Index * non-existent array elements: Reference to Elements. (line 23) * not Boolean-logic operator: Boolean Ops. (line 6) -* NR variable <1>: Auto-set. (line 128) +* NR variable <1>: Auto-set. (line 137) * NR variable: Records. (line 6) -* NR variable, changing: Auto-set. (line 314) +* NR variable, changing: Auto-set. (line 323) * null strings <1>: Basic Data Typing. (line 26) * null strings <2>: Truth Values. (line 6) * null strings <3>: Regexp Field Splitting. @@ -32267,7 +32276,7 @@ Index * p debugger command (alias for print): Viewing And Changing Data. (line 36) * P1003.1 POSIX standard: Glossary. (line 454) -* parent process ID of gawk process: Auto-set. (line 186) +* parent process ID of gawk process: Auto-set. (line 195) * parentheses (), in a profile: Profiling. (line 146) * parentheses (), regexp operator: Regexp Operators. (line 80) * password file: Passwd Functions. (line 16) @@ -32432,24 +32441,24 @@ Index * printing, unduplicated lines of text: Uniq Program. (line 6) * printing, user information: Id Program. (line 6) * private variables: Library Names. (line 11) -* process group idIDof gawk process: Auto-set. (line 180) -* process ID of gawk process: Auto-set. (line 183) +* process group idIDof gawk process: Auto-set. (line 189) +* process ID of gawk process: Auto-set. (line 192) * processes, two-way communications with: Two-way I/O. (line 23) * processing data: Basic High Level. (line 6) * PROCINFO array <1>: Passwd Functions. (line 6) * PROCINFO array <2>: Time Functions. (line 47) -* PROCINFO array: Auto-set. (line 133) +* PROCINFO array: Auto-set. (line 142) * PROCINFO array, and communications via ptys: Two-way I/O. (line 116) * PROCINFO array, and group membership: Group Functions. (line 6) * PROCINFO array, and user and group ID numbers: Id Program. (line 15) * PROCINFO array, testing the field splitting: Passwd Functions. (line 161) -* PROCINFO array, uses: Auto-set. (line 239) +* PROCINFO array, uses: Auto-set. (line 248) * PROCINFO, values of sorted_in: Controlling Scanning. (line 24) * profiling awk programs: Profiling. (line 6) * profiling awk programs, dynamically: Profiling. (line 179) -* program identifiers: Auto-set. (line 151) +* program identifiers: Auto-set. (line 160) * program, definition of: Getting Started. (line 21) * programmers, attractiveness of: Two-way I/O. (line 6) * programming conventions, --non-decimal-data option: Nondecimal Data. @@ -32609,7 +32618,7 @@ Index * right shift: Bitwise Functions. (line 52) * right shift, bitwise: Bitwise Functions. (line 32) * Ritchie, Dennis: Basic Data Typing. (line 55) -* RLENGTH variable: Auto-set. (line 253) +* RLENGTH variable: Auto-set. (line 262) * RLENGTH variable, match() function and: String Functions. (line 221) * Robbins, Arnold <1>: Future Extensions. (line 6) * Robbins, Arnold <2>: Bugs. (line 32) @@ -32638,9 +32647,9 @@ Index * RS variable: awk split records. (line 12) * RS variable, multiline records and: Multiple Line. (line 17) * rshift: Bitwise Functions. (line 52) -* RSTART variable: Auto-set. (line 259) +* RSTART variable: Auto-set. (line 268) * RSTART variable, match() function and: String Functions. (line 221) -* RT variable <1>: Auto-set. (line 266) +* RT variable <1>: Auto-set. (line 275) * RT variable <2>: Multiple Line. (line 129) * RT variable: awk split records. (line 124) * Rubin, Paul <1>: Contributors. (line 15) @@ -32747,7 +32756,7 @@ Index (line 110) * sidebar, Changing FS Does Not Affect the Fields: Field Splitting Summary. (line 38) -* sidebar, Changing NR and FNR: Auto-set. (line 312) +* sidebar, Changing NR and FNR: Auto-set. (line 321) * sidebar, Controlling Output Buffering with system(): I/O Functions. (line 135) * sidebar, Escape Sequences for Metacharacters: Escape Sequences. @@ -32909,9 +32918,9 @@ Index * substr: String Functions. (line 479) * substring: String Functions. (line 479) * Sumner, Andrew: Other Versions. (line 64) -* supplementary groups of gawk process: Auto-set. (line 234) +* supplementary groups of gawk process: Auto-set. (line 243) * switch statement: Switch Statement. (line 6) -* SYMTAB array: Auto-set. (line 274) +* SYMTAB array: Auto-set. (line 283) * syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops. (line 148) * system: I/O Functions. (line 72) @@ -33090,10 +33099,10 @@ Index * variables, uninitialized, as array subscripts: Uninitialized Subscripts. (line 6) * variables, user-defined: Variables. (line 6) -* version of gawk: Auto-set. (line 204) -* version of gawk extension API: Auto-set. (line 229) -* version of GNU MP library: Auto-set. (line 215) -* version of GNU MPFR library: Auto-set. (line 211) +* version of gawk: Auto-set. (line 213) +* version of gawk extension API: Auto-set. (line 238) +* version of GNU MP library: Auto-set. (line 224) +* version of GNU MPFR library: Auto-set. (line 220) * vertical bar (|): Regexp Operators. (line 70) * vertical bar (|), | operator (I/O) <1>: Precedence. (line 65) * vertical bar (|), | operator (I/O): Getline/Pipe. (line 9) @@ -33372,341 +33381,341 @@ Node: Built-in Variables408274 Node: User-modified409369 Ref: User-modified-Footnote-1417727 Node: Auto-set417789 -Ref: Auto-set-Footnote-1430856 -Ref: Auto-set-Footnote-2431061 -Node: ARGC and ARGV431117 -Node: Arrays434971 -Node: Array Basics436476 -Node: Array Intro437302 -Node: Reference to Elements441619 -Node: Assigning Elements443889 -Node: Array Example444380 -Node: Scanning an Array446112 -Node: Controlling Scanning448426 -Ref: Controlling Scanning-Footnote-1453513 -Node: Delete453829 -Ref: Delete-Footnote-1456594 -Node: Numeric Array Subscripts456651 -Node: Uninitialized Subscripts458834 -Node: Multidimensional460461 -Node: Multiscanning463554 -Node: Arrays of Arrays465143 -Node: Functions469783 -Node: Built-in470602 -Node: Calling Built-in471680 -Node: Numeric Functions473668 -Ref: Numeric Functions-Footnote-1477502 -Ref: Numeric Functions-Footnote-2477859 -Ref: Numeric Functions-Footnote-3477907 -Node: String Functions478176 -Ref: String Functions-Footnote-1501179 -Ref: String Functions-Footnote-2501308 -Ref: String Functions-Footnote-3501556 -Node: Gory Details501643 -Ref: table-sub-escapes503322 -Ref: table-sub-posix-92504676 -Ref: table-sub-proposed506027 -Ref: table-posix-sub507381 -Ref: table-gensub-escapes508926 -Ref: Gory Details-Footnote-1510102 -Ref: Gory Details-Footnote-2510153 -Node: I/O Functions510304 -Ref: I/O Functions-Footnote-1517300 -Node: Time Functions517447 -Ref: Time Functions-Footnote-1528440 -Ref: Time Functions-Footnote-2528508 -Ref: Time Functions-Footnote-3528666 -Ref: Time Functions-Footnote-4528777 -Ref: Time Functions-Footnote-5528889 -Ref: Time Functions-Footnote-6529116 -Node: Bitwise Functions529382 -Ref: table-bitwise-ops529944 -Ref: Bitwise Functions-Footnote-1534189 -Node: Type Functions534373 -Node: I18N Functions535524 -Node: User-defined537176 -Node: Definition Syntax537980 -Ref: Definition Syntax-Footnote-1542894 -Node: Function Example542963 -Ref: Function Example-Footnote-1545612 -Node: Function Caveats545634 -Node: Calling A Function546152 -Node: Variable Scope547107 -Node: Pass By Value/Reference550070 -Node: Return Statement553578 -Node: Dynamic Typing556559 -Node: Indirect Calls557490 -Node: Library Functions567177 -Ref: Library Functions-Footnote-1570690 -Ref: Library Functions-Footnote-2570833 -Node: Library Names571004 -Ref: Library Names-Footnote-1574477 -Ref: Library Names-Footnote-2574697 -Node: General Functions574783 -Node: Strtonum Function575811 -Node: Assert Function578741 -Node: Round Function582067 -Node: Cliff Random Function583608 -Node: Ordinal Functions584624 -Ref: Ordinal Functions-Footnote-1587701 -Ref: Ordinal Functions-Footnote-2587953 -Node: Join Function588164 -Ref: Join Function-Footnote-1589935 -Node: Getlocaltime Function590135 -Node: Readfile Function593876 -Node: Data File Management595715 -Node: Filetrans Function596347 -Node: Rewind Function600416 -Node: File Checking601803 -Node: Empty Files602897 -Node: Ignoring Assigns605127 -Node: Getopt Function606681 -Ref: Getopt Function-Footnote-1617984 -Node: Passwd Functions618187 -Ref: Passwd Functions-Footnote-1627165 -Node: Group Functions627253 -Node: Walking Arrays635337 -Node: Sample Programs637473 -Node: Running Examples638147 -Node: Clones638875 -Node: Cut Program640099 -Node: Egrep Program649950 -Ref: Egrep Program-Footnote-1657723 -Node: Id Program657833 -Node: Split Program661482 -Ref: Split Program-Footnote-1665001 -Node: Tee Program665129 -Node: Uniq Program667932 -Node: Wc Program675361 -Ref: Wc Program-Footnote-1679627 -Ref: Wc Program-Footnote-2679827 -Node: Miscellaneous Programs679919 -Node: Dupword Program681107 -Node: Alarm Program683138 -Node: Translate Program687945 -Ref: Translate Program-Footnote-1692332 -Ref: Translate Program-Footnote-2692580 -Node: Labels Program692714 -Ref: Labels Program-Footnote-1696085 -Node: Word Sorting696169 -Node: History Sorting700053 -Node: Extract Program701892 -Ref: Extract Program-Footnote-1709395 -Node: Simple Sed709523 -Node: Igawk Program712585 -Ref: Igawk Program-Footnote-1727756 -Ref: Igawk Program-Footnote-2727957 -Node: Anagram Program728095 -Node: Signature Program731163 -Node: Advanced Features732263 -Node: Nondecimal Data734149 -Node: Array Sorting735732 -Node: Controlling Array Traversal736429 -Node: Array Sorting Functions744713 -Ref: Array Sorting Functions-Footnote-1748582 -Node: Two-way I/O748776 -Ref: Two-way I/O-Footnote-1754208 -Node: TCP/IP Networking754290 -Node: Profiling757134 -Node: Internationalization764637 -Node: I18N and L10N766062 -Node: Explaining gettext766748 -Ref: Explaining gettext-Footnote-1771816 -Ref: Explaining gettext-Footnote-2772000 -Node: Programmer i18n772165 -Node: Translator i18n776392 -Node: String Extraction777186 -Ref: String Extraction-Footnote-1778147 -Node: Printf Ordering778233 -Ref: Printf Ordering-Footnote-1781015 -Node: I18N Portability781079 -Ref: I18N Portability-Footnote-1783528 -Node: I18N Example783591 -Ref: I18N Example-Footnote-1786229 -Node: Gawk I18N786301 -Node: Debugger786922 -Node: Debugging787893 -Node: Debugging Concepts788326 -Node: Debugging Terms790182 -Node: Awk Debugging792779 -Node: Sample Debugging Session793671 -Node: Debugger Invocation794191 -Node: Finding The Bug795524 -Node: List of Debugger Commands802011 -Node: Breakpoint Control803345 -Node: Debugger Execution Control807009 -Node: Viewing And Changing Data810369 -Node: Execution Stack813725 -Node: Debugger Info815192 -Node: Miscellaneous Debugger Commands819186 -Node: Readline Support824364 -Node: Limitations825195 -Node: Arbitrary Precision Arithmetic827447 -Ref: Arbitrary Precision Arithmetic-Footnote-1829096 -Node: General Arithmetic829244 -Node: Floating Point Issues830964 -Node: String Conversion Precision831845 -Ref: String Conversion Precision-Footnote-1833550 -Node: Unexpected Results833659 -Node: POSIX Floating Point Problems835812 -Ref: POSIX Floating Point Problems-Footnote-1839637 -Node: Integer Programming839675 -Node: Floating-point Programming841414 -Ref: Floating-point Programming-Footnote-1847745 -Ref: Floating-point Programming-Footnote-2848015 -Node: Floating-point Representation848279 -Node: Floating-point Context849444 -Ref: table-ieee-formats850283 -Node: Rounding Mode851667 -Ref: table-rounding-modes852146 -Ref: Rounding Mode-Footnote-1855161 -Node: Gawk and MPFR855340 -Node: Arbitrary Precision Floats856749 -Ref: Arbitrary Precision Floats-Footnote-1859192 -Node: Setting Precision859508 -Ref: table-predefined-precision-strings860194 -Node: Setting Rounding Mode862339 -Ref: table-gawk-rounding-modes862743 -Node: Floating-point Constants863930 -Node: Changing Precision865359 -Ref: Changing Precision-Footnote-1866756 -Node: Exact Arithmetic866930 -Node: Arbitrary Precision Integers870068 -Ref: Arbitrary Precision Integers-Footnote-1873083 -Node: Dynamic Extensions873230 -Node: Extension Intro874688 -Node: Plugin License875953 -Node: Extension Mechanism Outline876638 -Ref: load-extension877055 -Ref: load-new-function878533 -Ref: call-new-function879528 -Node: Extension API Description881543 -Node: Extension API Functions Introduction882830 -Node: General Data Types887757 -Ref: General Data Types-Footnote-1893452 -Node: Requesting Values893751 -Ref: table-value-types-returned894488 -Node: Memory Allocation Functions895442 -Ref: Memory Allocation Functions-Footnote-1898188 -Node: Constructor Functions898284 -Node: Registration Functions900042 -Node: Extension Functions900727 -Node: Exit Callback Functions903029 -Node: Extension Version String904278 -Node: Input Parsers904928 -Node: Output Wrappers914685 -Node: Two-way processors919195 -Node: Printing Messages921403 -Ref: Printing Messages-Footnote-1922480 -Node: Updating `ERRNO'922632 -Node: Accessing Parameters923371 -Node: Symbol Table Access924601 -Node: Symbol table by name925115 -Node: Symbol table by cookie927091 -Ref: Symbol table by cookie-Footnote-1931223 -Node: Cached 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