`_radix_size_digits, radix_size_digits`

Synopsis#include <flint/radix.h>

ulong _radix_size_digits(nn_srcptr x, slong n, const radix_t radix)source

ulong radix_size_digits(nn_srcptr x, slong n, const radix_t radix)source

Return the number of digits of $(x, n)$ . The underscore version requires $n > 0$ and $x_{n-1} \ne 0$ ; the other allows $n = 0$ and zero top limbs, which it skips, and returns 0 for zero.

Cite this page

The FLINT team, “_radix_size_digits, radix_size_digits (radix.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/radix/_radix_size_digits.html (generated 2026-11-02).

@misc{flint-doc-radix-radix-size-digits,
  author       = {{The FLINT team}},
  title        = {{\_radix\_size\_digits, radix\_size\_digits (radix.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/radix/_radix_size_digits.html},
  note         = {Generated 2026-11-02}
}

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