Make booleans just special numbers.

1 files changed, 392 insertions, 395 deletions

diff --git a/doc/gawk.info b/doc/gawk.info
index 853014fc..b73b18ec 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -12151,11 +12151,9 @@ available:
 '"@val_type_asc"'
      Order by element values in ascending order (rather than by
      indices).  Ordering is by the type assigned to the element (*note
-     Typing and Comparison::).  All Boolean values come before all
-     numeric values (*note Boolean Typed Values::), and all numeric
-     values come before all string values, which in turn come before all
-     subarrays.  (Subarrays have not been described yet; *note Arrays of
-     Arrays::.)
+     Typing and Comparison::).  All numeric values come before all
+     string values, which in turn come before all subarrays.  (Subarrays
+     have not been described yet; *note Arrays of Arrays::.)
 
      If you choose to use this feature in traversing 'FUNCTAB' (*note
      Auto-set::), then the order is built-in functions first (*note
@@ -12854,10 +12852,9 @@ compatibility mode (*note Options::):
 
 'bool(EXPRESSION)'
      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::.
+     EXPRESSION.  Boolean "true" values have numeric value one.  Boolean
+     "false" values have numeric zero.  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
@@ -14433,9 +14430,6 @@ 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::).
@@ -14443,6 +14437,9 @@ contexts.
      '"number"'
           X is a number.
 
+     '"number|bool"'
+          X is a Boolean typed value (*note Boolean Typed Values::).
+
      '"string"'
           X is a string.
 
@@ -20898,7 +20895,7 @@ their own:
 * Menu:
 
 * Nondecimal Data::             Allowing nondecimal input data.
-* Boolean Typed Values::        Values with 'bool' type.
+* Boolean Typed Values::        Values with 'number|bool' type.
 * Array Sorting::               Facilities for controlling array traversal and
                                 sorting arrays.
 * Two-way I/O::                 Two-way communications with another process.
@@ -20977,16 +20974,16 @@ there's no way to indicate that a value is really Boolean.
 takes one argument, which is any 'awk' expression, and it returns a
 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 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 returned values are normal 'awk' numeric values, with values of
+either one or zero, depending upon the truth value of the original
+expression passed in the call to 'bool()'.
+
+   The 'typeof()' function (*note Type Functions::) returns
+'"number|bool"' for these values.
 
-   The 'typeof()' function (*note Type Functions::) returns '"bool"' for
-these values.
+   Thus Boolean-typed values _are_ numbers as far as 'gawk' is
+concerned, except that extension code can treat them as Booleans if
+desired.
 
    While it would have been possible to add two new built-in variables
 of Boolean type named 'TRUE' and 'FALSE', doing so would undoubtedly
@@ -33231,8 +33228,8 @@ Localization
 
 Logical Expression
      An expression using the operators for logic, AND, OR, and NOT,
-     written '&&', '||', and '!' in 'awk'.  Often called Boolean
-     expressions, after the mathematician who pioneered this kind of
+     written '&&', '||', and '!' in 'awk'.  Often called "Boolean
+     expressions", after the mathematician who pioneered this kind of
      mathematical logic.
 
 Lvalue
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+Node: FP Math Caution986700
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+Node: Inexactness of computations988141
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+Node: Comparing FP Values990532
+Node: Errors accumulate991773
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+Ref: Strange values-Footnote-1995817
+Node: Getting Accuracy995922
+Node: Try To Round998632
+Node: Setting precision999531
+Ref: table-predefined-precision-strings1000228
+Node: Setting the rounding mode1002058
+Ref: table-gawk-rounding-modes1002432
+Ref: Setting the rounding mode-Footnote-11006363
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+Node: Checking for MPFR1009866
+Node: POSIX Floating Point Problems1011340
+Ref: POSIX Floating Point Problems-Footnote-11015625
+Node: Floating point summary1015663
+Node: Dynamic Extensions1017853
+Node: Extension Intro1019406
+Node: Plugin License1020672
+Node: Extension Mechanism Outline1021469
+Ref: figure-load-extension1021908
+Ref: figure-register-new-function1023473
+Ref: figure-call-new-function1024565
+Node: Extension API Description1026627
+Node: Extension API Functions Introduction1028340
+Ref: table-api-std-headers1030176
+Node: General Data Types1034425
+Ref: General Data Types-Footnote-11043131
+Node: Memory Allocation Functions1043430
+Ref: Memory Allocation Functions-Footnote-11047931
+Node: Constructor Functions1048030
+Node: API Ownership of MPFR and GMP Values1051683
+Node: Registration Functions1052996
+Node: Extension Functions1053696
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+Node: Extension Version String1060268
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+Node: Requesting Values1082492
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+Node: Accessing Parameters1084337
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+Node: Symbol table by cookie1089238
+Ref: Symbol table by cookie-Footnote-11093423
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+Node: Array Data Types1098304
+Ref: Array Data Types-Footnote-11100962
+Node: Array Functions1101054
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+Node: Extension API Variables1120128
+Node: Extension Versioning1120839
+Ref: gawk-api-version1121268
+Node: Extension GMP/MPFR Versioning1122999
+Node: Extension API Informational Variables1124627
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+Ref: Using Internal File Ops-Footnote-11150556
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+Node: Language History1183603
+Node: V7/SVR3.11185259
+Node: SVR41187411
+Node: POSIX1188845
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+Node: POSIX/GNU1190955
+Node: Feature History1196733
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+Ref: Ranges and Locales-Footnote-21218978
+Ref: Ranges and Locales-Footnote-31219213
+Node: Contributors1219436
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+Node: Installation1226813
+Node: Gawk Distribution1227757
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+Node: Extracting1229204
+Node: Distribution contents1230842
+Node: Unix Installation1237322
+Node: Quick Installation1238004
+Node: Shell Startup Files1240418
+Node: Additional Configuration Options1241507
+Node: Configuration Philosophy1243822
+Node: Non-Unix Installation1246191
+Node: PC Installation1246651
+Node: PC Binary Installation1247489
+Node: PC Compiling1247924
+Node: PC Using1249041
+Node: Cygwin1252594
+Node: MSYS1253818
+Node: VMS Installation1254420
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+Ref: VMS Compilation-Footnote-11256440
+Node: VMS Dynamic Extensions1256498
+Node: VMS Installation Details1258183
+Node: VMS Running1260436
+Node: VMS GNV1264715
+Node: VMS Old Gawk1265450
+Node: Bugs1265921
+Node: Bug address1266584
+Node: Usenet1269566
+Node: Maintainers1270570
+Node: Other Versions1271755
+Node: Installation summary1279620
+Node: Notes1280829
+Node: Compatibility Mode1281623
+Node: Additions1282405
+Node: Accessing The Source1283330
+Node: Adding Code1284767
+Node: New Ports1290986
+Node: Derived Files1295361
+Ref: Derived Files-Footnote-11301021
+Ref: Derived Files-Footnote-21301056
+Ref: Derived Files-Footnote-31301654
+Node: Future Extensions1301768
+Node: Implementation Limitations1302426
+Node: Extension Design1303636
+Node: Old Extension Problems1304780
+Ref: Old Extension Problems-Footnote-11306298
+Node: Extension New Mechanism Goals1306355
+Ref: Extension New Mechanism Goals-Footnote-11309719
+Node: Extension Other Design Decisions1309908
+Node: Extension Future Growth1312021
+Node: Notes summary1312627
+Node: Basic Concepts1313785
+Node: Basic High Level1314466
+Ref: figure-general-flow1314748
+Ref: figure-process-flow1315433
+Ref: Basic High Level-Footnote-11318734
+Node: Basic Data Typing1318919
+Node: Glossary1322247
+Node: Copying1354134
+Node: GNU Free Documentation License1391677
+Node: Index1416797
 
 End Tag Table