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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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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)
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Linux man-pages 6.9.1 2024-05-02 double_t(3type)
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HTML rendering created 2024-06-26 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. |
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