COMPOPT [option=value
...]
|
This system command is used to set various compilation options. The options are evaluated when a Natural programming object is compiled.
If you enter the COMPOPT
command without any
options, a screen is displayed where you can enable or disable the options
described below.
The default settings of the individual options are set with the
corresponding keyword subparameters of the parameter macro
NTCMPO
in the Natural parameter module or in the profile parameter
CMPO
. When
you change the library, the COMPOPT
options are
reset to their default values.
This document covers the following topics:
COMPOPT | If you issue the COMPOPT system
command without options, the Compilations
Options screen
appears. The keywords available there are described below.
|
---|---|
COMPOPT option=value |
The keywords for the individual options are described below. The setting assigned to a compiler option is in effect until you
issue the next |
You can specify compiler keyword parameters on different levels:
The default settings of the individual keyword parameters are
specified in the macro
NTCMPO
in the Natural parameter
module NATPARM
.
At session start, you can override the compiler keyword parameters
with the profile parameter CMPO
.
During an active Natural session, there are two ways to change the
compiler keyword parameters with the COMPOPT
system
command: either directly using command assignment (COMPOPT
option=value
)
or by issuing the COMPOPT
command without keyword
parameters which displays the Compilation Options screen.
The settings assigned to a compiler option are in effect until you issue the
next LOGON
command to another library. At
LOGON
, the default settings set with the macro
NTCMPO
and/or the profile parameter
CMPO
(see above) will be resumed.
Example:
OPTIONS KCHECK=ON DEFINE DATA LOCAL 1 #A (A25) INIT <'Hello World'> END-DEFINE WRITE #A END
In a Natural programming object (for example: program, subprogram),
you can set compiler parameters (options) with the
OPTIONS
statement.
Example:
OPTIONS KCHECK=ON WRITE 'Hello World' END
The compiler options defined in an OPTIONS
statement will only
affect the compilation of this programming object, but do not update settings
set with the command COMPOPT
.
The following options are available:
PSIGNF - Internal Representation of Positive Sign of Packed Numbers
DB2ARRY - Support DB2 Arrays in SQL SELECT and INSERT Statements
These options correspond to the keyword subparameters of the
CMPO
profile parameter and/or the
NTCMPO
parameter macro.
ON | Field declarations in a programming object will be checked against a set of critical Natural keywords. If a variable name defined matches one of these keywords, a syntax error is reported when the programming object is checked or cataloged. |
---|---|
OFF | No keyword check is performed. This is the default value. |
The section Performing a Keyword
Check (in the Programming Guide)
contains a list of the keywords that are checked by the KCHECK
option.
The section Alphabetical List of Natural Reserved Keywords (in the Programming Guide) contains an overview of all Natural keywords and reserved words.
ON |
The compiler
checks the number, format, length and array index bounds of the parameters that
are specified in an object calling statement, such as
The parameter check is based on a comparison of the parameters of
the object calling statement with the It requires that
Otherwise, Problems in Using the CATALL Command with
PCHECK=ON
When a If a As mentioned above, the parameters of the object calling statement
are checked against the compiled form of the called object. If the calling
object (the one which is being compiled and includes the object calling
statement) is cataloged before the invoked object, the This causes the new parameter layout in the object
calling statement to be compared with the old parameter layout of the
Solution:
|
---|---|
OFF | No parameter check is performed. This is the default value. |
A database field defined in a DDM is described by two names:
the short name with a length of 2 characters, used by Natural to communicate with the database (especially with Adabas);
the long name with a length of 3-32 characters (1-32 characters, if the underlying database type accessed is DB2/SQL), which is supposed to be used to reference the field in the Natural programming code.
Under special conditions, you may reference a database field in a Natural program with its short name instead of the long name. This applies if running in Reporting Mode without Natural Security and if the database access statement contains a reference to a DDM instead of a view.
The decision if a field name is regarded as a short-name reference
depends on the name length. When the field identifier consists of two
characters, a short-name reference is assumed; a field name with another length
is considered as a long-name reference. This standard interpretation rule for
database fields can additionally be influenced and controlled by setting the
compiler option DBSHORT
to ON
or OFF
:
ON |
The usage of a short name is allowed for referencing a database field. However, a data base short name is not permitted in
general (even if
This is the default value. |
---|---|
OFF |
A database field may only be referenced via its long name. Every database field identifier is considered as a long-name reference, regardless of its length. If a two character name is supplied which can only be found as a short name but not as a long name, syntax error NAT0981 is raised at compile time. This makes it possible to use long names defined in a DDM with 2-byte identifier length. This option is essential if the underlying database you access with this DDM is SQL (DB2) and table columns with a two character name exist. For all other database types (for example, Adabas), however, any attempt to define a long-field with a 2-byte name length will be rejected at DDM generation. Moreover, if no short-name references are used (what can be
enforced via |
Assume the following data base field definition in the DDM
EMPLOYEES
:
Short Name | Long Name |
---|---|
AA |
PERSONNEL-ID |
Example 1:
OPTIONS DBSHORT=ON READ EMPLOYEES DISPLAY AA /* data base short name AA is allowed END
Example 2:
OPTIONS DBSHORT=OFF READ EMPLOYEES DISPLAY AA /* syntax error NAT0981, because DBSHORT=OFF END
Example 3:
OPTIONS DBSHORT=ON DEFINE DATA LOCAL 1 V1 VIEW OF EMPLOYEES 2 PERSONNEL-ID END-DEFINE READ V1 BY PERSONNEL-ID DISPLAY AA /* syntax error NAT0981, because PERSONNEL-ID is defined in view; /* (even if DBSHORT=ON) END-READ END
ON | The positive sign of a packed number is represented internally as H'F'. This is the default value. |
---|---|
OFF | The positive sign of a packed number is represented internally as H'C'. |
This option determines whether the profile parameter TS
(translate
output for locations with non-standard lower-case usage) is to apply only to
Natural system libraries (that is, libraries whose names begin with
"SYS", except SYSTEM
) or to all user
libraries as well.
Natural objects cataloged with TSENABL=ON
determine the
TS
parameter even if they are located in a non-system
library.
ON | The profile parameter TS applies to all
libraries.
|
---|---|
OFF | The profile parameter TS only applies to
Natural system libraries. This is the default value.
|
This option allows you to control Natural's internal generation of global format IDs so as to influence Adabas's performance concerning the re-usability of format buffer translations.
ON | Global format IDs are generated for all views. This is the default value. |
---|---|
VID | Global format IDs are generated only for views in local/global data areas, but not for views defined within programs. |
OFF | No global format IDs are generated. |
For details on global format IDs, see the Adabas documentation.
GFID=abccddee
where | equals |
---|---|
a | x'F9' |
b | x'22' or x'21' depending on DB statement |
cc | physical database number (2 bytes) |
dd | physical file number (2 bytes) |
ee | number created by runtime (2 bytes) |
GFID=abbbbbbc
for file
number less than or equal to 255 and Adabas Version lower than 6.2 (see
NTDB
macro).
where | equals |
---|---|
a | x'F8' or x'F7' or x'F6' |
bbbbbb | bytes 1-6 of STOD value |
c | physical file number |
GFID=axbbbbbc
for file
number greater than 255 and Adabas Version lower than 6.2.
where | equals |
---|---|
a | x'F8' or x'F7' or x'F6' |
x | physical file number - high order byte |
bbbbb | Bytes 2-6 of STOD value |
c | physical file number - low order byte |
GFID=abbbbbb
for Adabas
Version 6.2 or higher.
where | equals |
---|---|
a | x'F8' or x'F7' or x'F6'
where:
F6= |
bbbbbbb | bytes 1-7 of STOD value |
Note:
STOD is the return value of the store clock machine instruction
(STCK).
This option supports the use of lower or mixed-case program sources on mainframe platforms. It facilitates the transfer of programs written in mixed/lower-case characters from other platforms to a mainframe environment.
ON | Allows any kind of lower/upper-case characters in the program source. |
---|---|
OFF | Allows upper-case mode only. This requires keywords, variable names and identifiers to be defined in upper case. This is the default value. |
When you use lower-case characters with LOWSRCE=ON
,
consider the following:
The syntax rules for variable names allow lower-case characters in subsequent positions. Therefore, you can define two variables, one written with lower-case characters and the other with upper-case characters.
Example:
DEFINE DATA LOCAL 1 #Vari (A20) 1 #VARI (A20)
With LOWSRCE=OFF
, these variables are treated as
different variables.
With LOWSRCE=ON
, the compiler is not case
sensitive and does not make a distinction between lower/upper-case characters.
This will lead to a syntax error because a duplicate definition of a variable
is not allowed.
Using the session parameter EM
(Edit Mask) in an
I/O statement or in a MOVE
EDITED
statement, there are characters which influence the
layout of the data setting assigned to a variable (EM
control characters), and characters which insert text fragments into the data
setting.
Example:
#VARI :='1234567890' WRITE #VARI (EM=XXXXXxxXXXXX)
With LOWSRCE=OFF
, the output is
"12345xx67890", because for alpha-format variables
only upper-case X, H and circumflex accent (ˆ) sign can be used.
With LOWSRCE=ON
, the output is
"1234567890", because an x character is treated like
an upper-case X and, therefore, interpreted as an EM
control character for that field format. To avoid this problem, enclose
constant text fragments in apostrophes (').
Example:
WRITE #VARI(EM=XXXXX'xx'XXXXX)
The text fragment is not considered an
EM
control character, regardless of the
LOWSRCE
settings.
Since all variable names are converted to upper-case characters with
LOWSRCE=ON
, the display of variable names in I/O statements
(INPUT
,
WRITE
or
DISPLAY
) differs.
Example:
MOVE 'ABC' to #Vari DISPLAY #Vari
With LOWSRCE=OFF
, the output is:
#Vari -------------------- ABC
With LOWSRCE=ON
, the output is:
#VARI -------------------- ABC
ON | Each double quotation mark within a text constant is output as a single apostrophe. This is the default value. |
---|---|
OFF | Double quotation marks within a text constant are not translated; they are output as double quotation marks. |
Example:
RESET A(A5) A:= 'AB"CD' WRITE '12"34' / A / A (EM=H(5)) END
With TQMARK ON
, the output is:
12'34 AB'CD C1C27DC3C4
With TQMARK OFF
, the output is:
12"34 AB"CD C1C27FC3C4
This option can be used to enable or disable the use of thousands
separators at compilation time. See also the profile and session parameter THSEPCH
and the
section Customizing Separator
Character Displays (in the Programming
Guide).
ON | Thousands separator used. Every thousands separator character that is not part of a string literal is replaced internally with a control character. |
---|---|
OFF | Thousands separator not used, i.e. no thousands separator control character is generated by the compiler. This is the compatibility setting. |
The CPAGE
option can be used to activate a conversion
routine which translates all alphanumeric constants (from the code page that
was active at compilation time into the code page that is active at runtime)
when the object is started at runtime.
See also CPAGE Compiler Option in the Unicode and Code Page Support documentation.
ON | Code page support for alpha strings is enabled. |
---|---|
OFF | Code page support for alpha strings is disabled. This is the default value. |
The DB2ARRY
option can be used to activate retrieval
and/or insertion of multiple rows from/into DB2 by a single SQL
SELECT
or
INSERT
statement
execution. This allows the specification of arrays as receiving fields in the
SQL SELECT
and as source fields in the SQL INSERT
statement. If DB2ARRY
is ON
, it is no longer possible
to use Natural alphanumeric arrays for DB2 VARCHAR/GRAPHIC columns. Instead of
these, long alphanumeric Natural variables have to be used.
ON | DB2 array support is enabled. |
---|---|
OFF | DB2 array support is not enabled. This is the default value. |
The CHKRULE
option can be used to enable or disable a
validation check during the catalog process for maps.
ON |
When a Natural map is created, you may include fields which are
already defined inside another existing programming object. This works with
nearly all kinds of objects which allow you to define variables and also with
DDMs. When the included field is a database variable, it is a map editor
built-in behavior to automatically add (besides the included field) an
additional The function is similar to what is happening when an
When fields are incorporated from a DDM into a map, the
corresponding |
---|---|
OFF | INCDIR validation is disabled. This is the default
value.
|
The following options are available:
FINDMUN - Detect Inconsistent Comparison Logic in FIND Statements
NMOVE22 - Assignment of Numeric Variables of Same Length and Precision
These options correspond to the keyword subparameters of the
CMPO
profile parameter and/or the
NTCMPO
parameter
macro.
With Natural Version 2.3, the comparison logic for multiple-setting
fields in the WITH
clause of the FIND
statement has been changed.
This means that when Version 2.2 programs containing certain forms of
FIND
statements are compiled under Version 3.1, they will return
different results. This option can be used to search for FIND
statements whose WITH
clauses use multiple-setting fields in a way
that is no longer consistent with the enhanced Version 3.1 comparison
logic.
ON | Error NAT0998 will be returned for every
FIND statement of such
form detected at compilation.
|
---|---|
OFF | No search for such FIND statements will be performed.
This is the default value.
|
The comparison logic for multiple-value fields in the WITH
clause of the FIND
statement has been changed with Natural Version
2.3 so as to be in line with the comparison logic in other statements (e.g.
IF
).
Four different forms of the FIND
statement can be
distinguished (the field MU
in the following examples is assumed
to be a multiple-value field):
FIND XYZ-VIEW WITH MU = 'A'
With Version 2.2 and above, this statement returns records in which
at least one occurrence of MU
has the value
"A".
FIND XYZ-VIEW WITH MU NOT EQUAL 'A'
With Version 2.2, this statement returns records in which no
occurrence of MU
has the value "A"
(same as 4.). With Version 2.3 and above, this statement returns records in
which at least one occurrence of MU
does not have the value
"A".
FIND XYZ-VIEW WITH NOT MU NOT EQUAL 'A'
With Version 2.2, this statement returns records in which at
least one occurrence of MU
has the value
"A" (same as 1.). With Version 2.3 and above, this
statement returns records in which every occurrence of MU
has the value "A".
FIND XYZ-VIEW WITH NOT MU = 'A'
With Version 2.2 and above, this statement returns records in which
no occurrence of MU
has the value
"A". This means that if you newly compile under
Version 2.3 existing Version 2.2 programs containing FIND
statements of the forms 2. and 3., they will return different results.
If you specify FINDMUN=ON,
error NAT0998 will be returned
for every FIND
statement of form 2. or 3. detected at
compilation.
Should you in these cases wish to continue to get the same results as with Version 2.2, you have to change the statements as follows:
FIND XYZ-VIEW WITH MU NOT EQUAL 'A'
into
FIND XYZ-VIEW WITH NOT MU = 'A'
FIND XYZ-VIEW WITH NOT MU NOT EQUAL 'A'
into
FIND XYZ-VIEW WITH MU = 'A'
ON | The range of valid year values that match the YYYY mask
characters is 1582 - 2699 to make the MASK option compatible to
MOVE EDITED . If the profile parameter
MAXYEAR is set to 9999, the range of valid year values
is 1582 - 9999.
|
---|---|
OFF | The range of valid year values that match the YYYY mask
characters is 0000 - 2699. This is the default value. If the profile parameter
MAXYEAR is set to 9999, the range of valid year values
is 0000 - 9999.
|
ON | Assignments of numeric variables where source and target have the same length and precision is performed as with Natural Version 2.2. |
---|---|
OFF | Assignments of numeric variables where source and target have the same length and precision is performed as with Natural Version 2.3 and above, that is they are processed as if source and target would have different length or precision. This is the default value. |
Important:
This compiler option will be available only with Natural
Version 4.2 to allow a smooth transition. It will be removed again with a
subsequent release of Natural after Version 4.2.
A number of functions and programming features introduced with Natural Version 4.2 would give rise to problems when a program developed and compiled with Version 4.2 is to be recompiled for putting into operation in a Version 4.1 environment. The relevant functions or features are listed below.
The V41COMP
option has been provided to detect such
incompatibilities and trigger an error message that supplies a reason code for
why the recompilation failed. The following values are possible:
ON | When a program is compiled under Version 4.2, every attempt to use a syntax construction that is supported by Version 4.2, but not by Version 4.1, is rejected and a NAT0647 syntax error and a corresponding reason code (see below) will be output. |
---|---|
OFF | A test for Version 4.1 compatibility is not performed. This is the default value. |
The following table gives an overview of the compilation relevant differences between Version 4.2 and 4.1 and indicates the reason code that will be supplied when incompatible syntax is detected:
Function or Feature | Version 4.2 | Version 4.1 | Reason Code | ||||||
---|---|---|---|---|---|---|---|---|---|
New format U (Unicode) | possible | unknown | 001 | ||||||
Array with variable number of occurences
X-array, for example: DEFINE DATA LOCAL 1 #ARR (A10/1:*) |
possible | unknown | 002 | ||||||
Possible length of alpha and literals (constants) | 1 byte - 1 GB | 1 byte - 253 bytes (NAT0264) | 003 | ||||||
|
possible | unknown | 004 | ||||||
New statements:
|
possible | unknown | 005 | ||||||
Statement SET GLOBALS :
|
possible | unknown | 006 | ||||||
New system variables:
|
possible | unknown | 007 | ||||||
Not used | - | - | 008 | ||||||
Length and type of source parameters supplied
with INCLUDE
Example: INCLUDE COPY01 'WRITE *LINE' 'WRITE *PROGRAM' |
any length and format U (Unicode) allowed | only alpha with a length of max. 80 bytes | 009 | ||||||
Definition of an Adabas LA-field in a data view
|
possible | unknown | 010 |