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Sun Studio 12: C User's Guide
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Appendix E Implementation-Defined ISO/IEC C90 Behavior
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E.1 Implementation Compared to the ISO Standard
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E.1.14 Library Functions (G.3.14)
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E.1.14.1 (7.1.6) The null pointer constant to which the macro NULL expands:
> (7.5.1) Whether the mathematics functions set the integer expression errno to the value of the macro ERANGE on underflow range errors:
Sun Studio 12: C User's Guide
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(7.5.1) Whether the mathematics functions set the integer expression
errno
to the value of the macro
ERANGE
on underflow range errors:
Mathematics functions, except
scalbn
, set
errno
to
ERANGE
when underflow is detected.
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