significand, significandf, significandl - get mantissa of floating-point number
long double significandl(long double
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
These functions return the mantissa of
x scaled to the range [1,2). They are equivalent to
scalb(x, (double) -ilogb(x))
This function exists mainly for use in certain standardized tests for IEEE 754 conformance.
These functions are nonstandard; the
double version is available on a number of other systems.
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