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Strange value of the double type variable: -nan(0x8000000000000)
Post 302903932 by 915086731 on Saturday 31st of May 2014 12:32:18 AM
05-31-2014
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LEARN ABOUT SUNOS
nanl
nan(3M) Mathematical Library Functions nan(3M) NAME
nan, nanf, nanl - return quiet NaN SYNOPSIS
cc [ flag... ] file... -lm [ library... ] #include <math.h> double nan(const char *tagp); float nanf(const char *tagp); long double nanl(const char *tagp); DESCRIPTION
The function call nan("n-char-sequence") is equivalent to: strtod("NAN(n-char-sequence)", (char **) NULL); The function call nan(" ") is equivalent to: strtod("NAN()", (char **) NULL) If tagp does not point to an n-char sequence or an empty string, the function call is equivalent to: strtod("NAN", (char **) NULL) Function calls to nanf() and nanl() are equivalent to the corresponding function calls to strtof() and strtold(). See strtod(3C). RETURN VALUES
These functions return a quiet NaN. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
math.h(3HEAD), strtod(3C), attributes(5), standards(5) SunOS 5.10 1 Sep 2002 nan(3M)