table of contents
significand(3) | Library Functions Manual | significand(3) |
NAME¶
significand, significandf, significandl - get mantissa of floating-point number
LIBRARY¶
Math library (libm, -lm)
SYNOPSIS¶
#include <math.h>
double significand(double x); float significandf(float x); long double significandl(long double x);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
significand(), significandf(), significandl():
/* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
DESCRIPTION¶
These functions return the mantissa of x scaled to the range [1, FLT_RADIX). They are equivalent to
scalb(x, (double) -ilogb(x))
This function exists mainly for use in certain standardized tests for IEEE 754 conformance.
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
significand (), significandf (), significandl () | Thread safety | MT-Safe |
STANDARDS¶
None.
- significand()
- BSD.
HISTORY¶
- significand()
- BSD.
SEE ALSO¶
2024-05-02 | Linux man-pages 6.9.1 |