Linux Standard Base Core Specification for X86-64 | ||
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__fpclassifyl() has the same specification as fpclassify() in POSIX 1003.1-2008 (ISO/IEC 9945-2009), except that the argument type for __fpclassifyl() is known to be long double.
__fpclassifyl() is not in the source standard; it is only in the binary standard.
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Interface Definitions for libm | Up | __signbitl |