Pragmatic directives: Difference between revisions
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=={{header|PL/I}}== |
=={{header|PL/I}}== |
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Disabled on-conditions can be seen as pragmatic directives. |
Disabled on-conditions can be seen as pragmatic directives. |
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<br>SubscriptRange (SUBRG), StringRange (STRG), StringSize (STRZ), Size conditions |
<br>'''SubscriptRange''' (SUBRG), '''StringRange''' (STRG), '''StringSize''' (STRZ), '''Size''' conditions |
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can be enabled for a PROCEDURE or a BEGIN block. |
can be enabled for a PROCEDURE or a BEGIN block. |
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<br>By default, for optimization reasons, |
<br>By default, for optimization reasons, |
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SubscriptRange,StringRange,StringSize,Size are disabled. |
SubscriptRange,StringRange,StringSize,Size are disabled. |
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<br>If enabled the SubscriptRange condition is raised for out-of-bound subscript of |
<br>If enabled the '''SubscriptRange''' condition is raised for out-of-bound subscript of |
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an array. |
an array. |
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For example: |
For example: |
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end;</lang> |
end;</lang> |
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<br>And the same way for a string, |
<br>And the same way for a string, |
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the StringRange condition is raised when a substring reference is beyond |
the '''StringRange''' condition is raised when a substring reference is beyond |
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the span of the string. |
the span of the string. |
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<br>And finally. |
<br>And finally. |
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The StringSize condition is raised when a string is shorten |
The '''StringSize''' condition is raised when a string is shorten |
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as a result of a convertion assigment. |
as a result of a convertion assigment. |
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The Size condition is raised when a numerical value is shorten |
The '''Size condition''' is raised when a numerical value is shorten |
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as a result of a convertion assigment. |
as a result of a convertion assigment. |
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