|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|
|
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
|
|
|
double_t(3type) double_t(3type)
float_t, double_t - most efficient floating types
Math library (libm)
#include <math.h>
typedef /* ... */ float_t;
typedef /* ... */ double_t;
The implementation's most efficient floating types at least as
wide as float and double respectively. Their type depends on the
value of the macro FLT_EVAL_METHOD (defined in <float.h>):
FLT_EVAL_METHOD float_t double_t
────────────────────────────────────────────
0 float double
1 double double
2 long double long double
For other values of FLT_EVAL_METHOD, the types of float_t and
double_t are implementation-defined.
C11, POSIX.1-2008.
C99, POSIX.1-2001.
float.h(0p), math.h(0p)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.15.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2025-08-11. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.15 2025-05-17 double_t(3type)
|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|