NAME
complex — complex functions and macros
DESCRIPTION
This file contains declarations of all the functions in the
Complex Library (described in Section (3M)).
It defines the macros
- complex
Expands to
_Complex,
a keyword designating complex types.
- imaginary
Expands to
_Imaginary,
a keyword designating imaginary types.
These macros and the names of the real types, in combination, provide designations for
the complex and imaginary types
- float complex
- double complex
- float imaginary
- double imaginary
This file also defines the macros
- _Imaginary_I
Expands to a constant expression of type
const float imaginary,
with the value of the imaginary unit (a number whose square is -1).
- _Complex_I
Expands to a constant expression of type
const float complex,
with the value of the imaginary unit.
- I
Expands to
_Imaginary_I.
It can be used to efficiently construct complex expressions in the style
x + y*I,
where
x
and
y
are real.
This header is for IA-64 systems only. To use it,
compile with the default
-Ae
option.
FILES
/usr/include/complex.h
STANDARDS CONFORMANCE
<complex.h>
: ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arithmetic'')
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