diff options
Diffstat (limited to 'doc/gawk.info')
| -rw-r--r-- | doc/gawk.info | 627 |
1 files changed, 315 insertions, 312 deletions
diff --git a/doc/gawk.info b/doc/gawk.info index 4e975b14..ca168110 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -13464,8 +13464,11 @@ have a parameter with the same name as the function itself. CAUTION: According to the POSIX standard, function parameters cannot have the same name as one of the special predefined variables (*note Built-in Variables::), nor may a function - parameter have the same name as another function. Not all - versions of `awk' enforce these restrictions. + parameter have the same name as another function. + + Not all versions of `awk' enforce these restrictions. `gawk' + always enforces the first restriction. With `--posix' (*note + Options::), it also enforces the second restriction. Local variables act like the empty string if referenced where a string value is required, and like zero if referenced where a numeric @@ -14067,13 +14070,13 @@ using indirect function calls: # average --- return the average of the values in fields $first - $last - function average(first, last, the_sum, i) + function average(first, last, sum, i) { - the_sum = 0; + sum = 0; for (i = first; i <= last; i++) - the_sum += $i + sum += $i - return the_sum / (last - first + 1) + return sum / (last - first + 1) } # sum --- return the sum of the values in fields $first - $last @@ -32159,7 +32162,7 @@ Index * common extensions, \x escape sequence: Escape Sequences. (line 61) * common extensions, BINMODE variable: PC Using. (line 33) * common extensions, delete to delete entire arrays: Delete. (line 39) -* common extensions, func keyword: Definition Syntax. (line 95) +* common extensions, func keyword: Definition Syntax. (line 98) * common extensions, length() applied to an array: String Functions. (line 201) * common extensions, RS as a regexp: gawk split records. (line 6) @@ -32680,7 +32683,7 @@ Index * extensions, common, BINMODE variable: PC Using. (line 33) * extensions, common, delete to delete entire arrays: Delete. (line 39) * extensions, common, fflush() function: I/O Functions. (line 43) -* extensions, common, func keyword: Definition Syntax. (line 95) +* extensions, common, func keyword: Definition Syntax. (line 98) * extensions, common, length() applied to an array: String Functions. (line 201) * extensions, common, RS as a regexp: gawk split records. (line 6) @@ -32897,7 +32900,7 @@ Index * functions, library, user database, reading: Passwd Functions. (line 6) * functions, names of: Definition Syntax. (line 23) -* functions, recursive: Definition Syntax. (line 85) +* functions, recursive: Definition Syntax. (line 88) * functions, string-translation: I18N Functions. (line 6) * functions, undefined: Pass By Value/Reference. (line 68) @@ -33618,7 +33621,7 @@ Index (line 65) * portability, deleting array elements: Delete. (line 56) * portability, example programs: Library Functions. (line 42) -* portability, functions, defining: Definition Syntax. (line 111) +* portability, functions, defining: Definition Syntax. (line 114) * portability, gawk: New Ports. (line 6) * portability, gettext library and: Explaining gettext. (line 11) * portability, internationalization and: I18N Portability. (line 6) @@ -33663,7 +33666,7 @@ Index * POSIX awk, field separators and <1>: Full Line Fields. (line 16) * POSIX awk, field separators and: Fields. (line 6) * POSIX awk, FS variable and: User-modified. (line 60) -* POSIX awk, function keyword in: Definition Syntax. (line 95) +* POSIX awk, function keyword in: Definition Syntax. (line 98) * POSIX awk, functions and, gsub()/sub(): Gory Details. (line 90) * POSIX awk, functions and, length(): String Functions. (line 180) * POSIX awk, GNU long options and: Options. (line 15) @@ -33756,7 +33759,7 @@ Index * programming conventions, functions, calling: Calling Built-in. (line 10) * programming conventions, functions, writing: Definition Syntax. - (line 67) + (line 70) * programming conventions, gawk extensions: Internal File Ops. (line 45) * programming conventions, private variable names: Library Names. @@ -33825,7 +33828,7 @@ Index * records, splitting input into: Records. (line 6) * records, terminating: awk split records. (line 125) * records, treating files as: gawk split records. (line 93) -* recursive functions: Definition Syntax. (line 85) +* recursive functions: Definition Syntax. (line 88) * redirect gawk output, in debugger: Debugger Info. (line 72) * redirection of input: Getline/File. (line 6) * redirection of output: Redirection. (line 6) @@ -33994,7 +33997,7 @@ Index * set directory of message catalogs: I18N Functions. (line 12) * set watchpoint: Viewing And Changing Data. (line 67) -* shadowing of variable values: Definition Syntax. (line 73) +* shadowing of variable values: Definition Syntax. (line 76) * shell quoting, rules for: Quoting. (line 6) * shells, piping commands into: Redirection. (line 136) * shells, quoting: Using Shell Variables. @@ -34368,7 +34371,7 @@ Index * variables, predefined conveying information: Auto-set. (line 6) * variables, private: Library Names. (line 11) * variables, setting: Options. (line 32) -* variables, shadowing: Definition Syntax. (line 73) +* variables, shadowing: Definition Syntax. (line 76) * variables, types of: Assignment Ops. (line 40) * variables, types of, comparison expressions and: Typing and Comparison. (line 9) @@ -34725,302 +34728,302 @@ Node: Type Functions562811 Node: I18N Functions563962 Node: User-defined565607 Node: Definition Syntax566412 -Ref: Definition Syntax-Footnote-1571911 -Node: Function Example571982 -Ref: Function Example-Footnote-1574901 -Node: Function Caveats574923 -Node: Calling A Function575441 -Node: Variable Scope576399 -Node: Pass By Value/Reference579387 -Node: Return Statement582882 -Node: Dynamic Typing585863 -Node: Indirect Calls586792 -Ref: Indirect Calls-Footnote-1598110 -Node: Functions Summary598238 -Node: Library Functions600940 -Ref: Library Functions-Footnote-1604549 -Ref: Library Functions-Footnote-2604692 -Node: Library Names604863 -Ref: Library Names-Footnote-1608317 -Ref: Library Names-Footnote-2608540 -Node: General Functions608626 -Node: Strtonum Function609729 -Node: Assert Function612751 -Node: Round Function616075 -Node: Cliff Random Function617616 -Node: Ordinal Functions618632 -Ref: Ordinal Functions-Footnote-1621695 -Ref: Ordinal Functions-Footnote-2621947 -Node: Join Function622158 -Ref: Join Function-Footnote-1623927 -Node: Getlocaltime Function624127 -Node: Readfile Function627871 -Node: Shell Quoting629841 -Node: Data File Management631242 -Node: Filetrans Function631874 -Node: Rewind Function635930 -Node: File Checking637317 -Ref: File Checking-Footnote-1638649 -Node: Empty Files638850 -Node: Ignoring Assigns640829 -Node: Getopt Function642380 -Ref: Getopt Function-Footnote-1653842 -Node: Passwd Functions654042 -Ref: Passwd Functions-Footnote-1662879 -Node: Group Functions662967 -Ref: Group Functions-Footnote-1670861 -Node: Walking Arrays671074 -Node: Library Functions Summary672677 -Node: Library Exercises674078 -Node: Sample Programs675358 -Node: Running Examples676128 -Node: Clones676856 -Node: Cut Program678080 -Node: Egrep Program687799 -Ref: Egrep Program-Footnote-1695297 -Node: Id Program695407 -Node: Split Program699052 -Ref: Split Program-Footnote-1702500 -Node: Tee Program702628 -Node: Uniq 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List of Debugger Commands848663 -Node: Breakpoint Control849996 -Node: Debugger Execution Control853692 -Node: Viewing And Changing Data857056 -Node: Execution Stack860434 -Node: Debugger Info862071 -Node: Miscellaneous Debugger Commands866088 -Node: Readline Support871117 -Node: Limitations872009 -Node: Debugging Summary874123 -Node: Arbitrary Precision Arithmetic875291 -Node: Computer Arithmetic876707 -Ref: table-numeric-ranges880305 -Ref: Computer Arithmetic-Footnote-1881164 -Node: Math Definitions881221 -Ref: table-ieee-formats884509 -Ref: Math Definitions-Footnote-1885113 -Node: MPFR features885218 -Node: FP Math Caution886889 -Ref: FP Math Caution-Footnote-1887939 -Node: Inexactness of computations888308 -Node: Inexact representation889267 -Node: Comparing FP Values890624 -Node: Errors accumulate891706 -Node: Getting Accuracy893139 -Node: Try To Round895801 -Node: Setting precision896700 -Ref: table-predefined-precision-strings897384 -Node: Setting the rounding mode899173 -Ref: 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