Implementation-defined features

A complying processor is required to provide a definition of all the implementation-defined features of the language. To facilitate the production of this definition, all the implementation-defined aspects specified in clause 6 are listed again in this annex.

E.1 6.1.7

The string-characters which denote an implementation-defined value of the required char- type.

NOTE --- For processors which compile and execute in different environments, the above may require the definition of two character sets and a mapping between the two.

E.2 6.1.9

Provision of the reference tokens ­, [, and ], of the alternative token @, and of the delimiting characters { and }, is implementation-defined.

E.3 6.4.2.2 b)

The values of the implementation-defined approximation to an implementation-defined subset of the real numbers denoted by signed-real.

NOTE --- The subset defined above may be by reference to another specification.

E.4 6.4.2.2 d)

The values of char-type which are an enumeration of a set of implementation-defined characters.

E.5 6.4.2.2 d)

The ordinal numbers of each value of char-type are implementation-defined.

E.6 6.4.3.5

The set of characters designated prohibited from textfiles is implementation-defined.

E.7 6.6.5.2

The point at which the file operations rewrite, put, reset, and get are actually performed is implementation-defined.

E.8 6.7.2.2

The value denoted by the constant-identifier maxint is implementation-defined.

E.9 6.7.2.2

The accuracy of the approximation of the result of the real operations and functions to the mathematical result is implementation-defined.

E.10 6.9.3.1

The default value of TotalWidth for integer-type is implementation-defined.

E.11 6.9.3.1

The default value of TotalWidth for real-type is implementation-defined.

E.12 6.9.3.1

The default value of TotalWidth for Boolean-type is implementation-defined.

E.13 6.9.3.4.1

The value of ExpDigits is implementation-defined.

E.14 6.9.3.4.1

The value of the exponent character ('e' or 'E') used on output of values of real-type is implementation-defined.

E.15 6.9.3.5

The case of each character of 'True' and 'False' used on output of values of Boolean-type is implementation-defined.

E.16 6.9.5

The effect of the procedure page when applied to a textfile which is in generation mode is implementation-defined.

E.17 6.10

The binding of a file-type program-parameter is implementation-defined.

E.18 6.10

The effect of reset and rewrite on the standard files input and output is implementation-defined.

ISO/IEC 7185:1990(E)

Annex F

(Informative)

Implementation-dependent features

A complying processor is required to provide documentation concerning the implementation-dependent features of the language. To facilitate the production of such documentation, all the implementation-dependent aspects specified in clause 6 are listed again in this annex.

F.1 6.4.3.5

For any textfile t, the effect of attributing to a component of either t.L or t.R a member of the characters prohibited from textfiles is implementation-dependent.

F.2 6.5.3.2

The order of evaluation of the index-expressions of an indexed-variable is implementation-dependent.

F.3 6.7.1

The order of evaluation of expressions of a member-designator is implementation-dependent.

F.4 6.7.1

The order of evaluation of the member-designators of a set-constructor is implementation-dependent.

F.5 6.7.2.1

The order of evaluation of the operands of a dyadic operator is implementation-dependent.

F.6 6.7.3

The order of evaluation, accessing, and binding of the actual-parameters of a function-designator is implementation-dependent.

F.7 6.8.2.2

The order of accessing the variable and evaluating the expression of an assignment-statement is implementation-dependent.

F.8 6.8.2.3

The order of evaluation, accessing, and binding of the actual-parameters of a procedure-statement is implementation-dependent.

F.9 6.9.5

The effect of inspecting a textfile to which the page procedure was applied during generation is implementation-dependent.

F.10 6.10

The binding of non-file variables denoted by the program-parameters to entities external to the program is implementation-dependent.

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