Pascal News

ERROR HANDLING
Tests in wMOO errOJ:awere correctly detected
Tests showing true extensions
Tests in whiOO errcu:swere not detected
Details of test showing true extension:
19
1
26
(18 causes)
6.6.5.2-1.: After a file has been opened .with -reset",
bo,tn"get" and "put" operations are allowed.
(In fact, both operations are permit.ted at all
times. regardless of how the file waa opened.)
This extension is provided to permit convenient
random processing. RDS Pascal provides the
ability to reposition files with the predeclared
procedure "seek «filename>, (integer expression»".
(Not permitted for files of type "text".)
Details of failed tests:
6.2.1-7, 6.4.3.3-6, 6.4.3.3-8, 6.5.4-1, 6.5.4-2,
6.8.3.9-5, 6.8.3.9-6:
No check is done at runtime for variables with
·undefined" (uninitialized, etc.) values'.
6.4.3.3-5, 6.4.3.3-7: Storage redefinition is permitted.
6.4.3.3-12: Empty record rejected at compile time.
6.4.6-7, 6.4.6-8, 6.7.2.4-1: No runtime check for illegal
set assignments.
6.6.2-6: No runtime OOeck for function that fails to
execute assignment statement.
6.6.5.2-6, 6.6.5.2-7: File may be repositioned while
buffer is "var- parameter or is record variable
of "with- statement.
6.6.5.3·-3, 6.6.5.3-4, 6.6.5.3-5, 6.6.5.3-6: Standard
procedure -dispose" not supported.
6.6.5.3-7, 6.6.5.3-8, 6.6.5.3-9: Misuse of variable
created by variant form of -new- is tolerated.
6.8.3.5-5, 6.8.3.5-6: No runtime error when case-index
expression matches none of the case-constants.
6.8.3.9-171 Nested -for- statements may have the same
control variable.
IMPLEMENTATION DEFINED
Number of tests run 15
Details of erroneous tests:
6.11-1: Alternate comment delimiters no longer belong
to category "implementation-defined"; explicitly
required by latest draft standard.
6.11-2: Equivalent symbol for uparrow no longer belongs
to category "implementation-defined-; explicitly
required by latest draft standard. Equivalent
symbols for colon, semicolon, assignment symbol,
and square brackets no longer defined; deleted
from latest draft standard.
6.11-3: Equivalent symbols for comparison symbols not
listed in draft standard.
Details of other tests:
6.4.2.2-7: The value of "maxint" is 32767. (But the
value -32768 can be created by writing --maxint-l"
and is not rejected as erroneous.)
6.4.3.4-2: Declaration "set of char" is permitted.
6.4.3.4-4: Implementation permits sets to contain as many
as 4888 elements. No set may contain negative elements;
e.g. "set of 8 •• 4879" is acceptable, "set of -1•• 4878-
is not. This test brought to light a compiler error;
the unacceptable declaration "set of -1 •• +1- was
accepted by the compiler. However, an attempt to
insert a negative element into a set (any set) will
cause a runtime error. (Fixed in release 2.11).
6.6.6.1-1: Procedural and functional parameters not supported.
I-'