SIGNIFICANDSection: Linux Programmer's Manual (3)
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NAMEsignificand, significandf, significandl - get mantissa of floating-point number
double significand(double x);
float significandf(float x);
long double significandl(long double x);
Link with -lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
significand(), significandf(), significandl():
- _SVID_SOURCE || _BSD_SOURCE
DESCRIPTIONThese functions return the mantissa of x scaled to the range [1,2). They are equivalent to
scalb(x, (double) -ilogb(x))
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
CONFORMING TOThese functions are nonstandard; the double version is available on a number of other systems.
SEE ALSOilogb(3), scalb(3)
COLOPHONThis page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
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