nanf man page on Minix

nanf man page on Minix

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NAN(3)			 BSD Library Functions Manual			NAN(3)

NAME
     nan, nanf, nanl — return quiet NaN

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <math.h>

     double
     nan(const char *tagp);

     float
     nanf(const char *tagp);

     long double
     nanl(const char *tagp);

DESCRIPTION
     The call nan("n-char-sequence") is equivalent to the call strod("NAN(n-
     char-sequence)", NULL).  The call nan("") is equivalent to the call
     strod("NAN()", NULL).

     The nanf() and nanl() functions are equivalent to nan() but substituting
     strtof() and strtod(), respectively.

RETURN VALUES
   IEEE 754
     The nan(), nanf(), and nanl() functions return a quiet NaN as specified
     by tagp.

   VAX
     The nan(), nanf(), and nanl() functions return zero.

SEE ALSO
     math(3), strtod(3)

STANDARDS
     The nan(), nanf(), and nanl() functions conform to ISO/IEC 9899:1999
     (“ISO C99”).

BSD				March 15, 2006				   BSD

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