Query: signbit
OS: freebsd
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
SIGNBIT(3) BSD Library Functions Manual SIGNBIT(3)NAMEsignbit -- determine whether a floating-point number's sign is negativeLIBRARYMath Library (libm, -lm)SYNOPSIS#include <math.h> int signbit(real-floating x);DESCRIPTIONThe signbit() macro takes an argument of x and returns non-zero if the value of its sign is negative, otherwise 0.SEE ALSOfpclassify(3), math(3)STANDARDSThe signbit() macro conforms to ISO/IEC 9899:1999 (``ISO C99'').HISTORYThe signbit() macro was added in FreeBSD 5.1.BSDJuly 18, 2004 BSD
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isinf(3) - mojave |
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fpclassify(3) - netbsd |
signbit(3m) - hpux |
signbit(3m) - sunos |
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