Reliability of double.cmp()

Suppose the following variables:

• Read more

Transfer of control

The Baan 3GL programming language supports several statements that change the flow of control in a program. These enable control to be transferred either conditionally or unconditionally to a specified point in the program.

• Read more

Debugger commands

Debugger commands consist of from one to three words; the words can be separated from each other by one or more spaces. The assignment command is an exception. Here the variable and the value to be assigned are separated by a ':=' sign. Most commands require a line number and/or a source name. If no source name is specified, the default is the current source.

• Read more

Fixed and based variables

Fixed variables

A string variable can be declared as fixed so that its current length always equals the maximum length. For example:

STRING name(10) FIXED
name = "andrew" | the string is always filled up with spaces

The keyword FIXED is applicable to one-dimensional strings only. Multi-dimensional string arrays are always fixed and do not need to be declared with the keyword FIXED.

• Read more

Object identifications (preprocessor)

The compiler always places a default identification in an object, but you can include you own if you wish. You can use the UNIX command what to write all object lines that begin with '@(#)' on standard output.
The default identification has the following content:

#ident "@(#)<source name>, YY/MM/DD, [HH/MM], From ${logname}"

To set you own identification use the following statement:

• Read more

Function arguments

The arguments of a function are the variables declared in the function header. Arguments can be accessed only within the function.

Declaration, initialization, and scope

Point of declaration

In the function between the brackets { }.

Syntax of declaration

[ref|reference] <type> name

• Read more

Operator precedence

An expression can include a number of operators, variables, and constants. The overall result is calculated in accordance with the rules of precedence described here. For example, because multiplication has precedence over addition, the result of the expression (3 + 4 * 5) is 23 and not 35.

• Read more

Function calls

The call of a function must have the same number of arguments as declared in the function header. Value arguments can be called using a constant or a variable; reference arguments can only be called using a variable. If the called function is not of type void, the function call must be assigned to a variable or used as value argument in another function call.

• Read more

3GL programming language features: overview

This section describes the features of the Baan 3GL programming language. You can use the 3GL language in both 3GL scripts and 4GL scripts.

• Read more

Function prototypes

A function consists of three parts:

• Function prototype
• Function definition (function block)
• Function call

The function prototype must be exactly the same as the function header in the function definition. The prototype of a function is not always necessary. For example, it is not necessary in the following situations:

• Read more