File: signbit

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gnulib 20250303-3
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Description:
signbit() macro: Determine the sign bit of a floating-point number.

Files:
lib/signbitf.c
lib/signbitd.c
lib/signbitl.c
lib/float+.h
m4/signbit.m4

Depends-on:
math-h
float-h         [test $REPLACE_SIGNBIT = 1]
isnanf-nolibm   [test $REPLACE_SIGNBIT = 1]
isnand-nolibm   [test $REPLACE_SIGNBIT = 1]
isnanl-nolibm   [test $REPLACE_SIGNBIT = 1]
fpieee          [test $REPLACE_SIGNBIT = 1]
memcmp          [test $REPLACE_SIGNBIT = 1]

configure.ac:
gl_SIGNBIT
gl_CONDITIONAL([GL_COND_OBJ_SIGNBIT3], [test $REPLACE_SIGNBIT = 1])
gl_MATH_MODULE_INDICATOR([signbit])

Makefile.am:
if GL_COND_OBJ_SIGNBIT3
lib_SOURCES += signbitf.c signbitd.c signbitl.c
endif

Include:
<math.h>

License:
LGPLv2+

Maintainer:
all