File: bn_s_mp_log_2expt.c

package info (click to toggle)
tcl9.0 9.0.1%2Bdfsg-2
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 35,828 kB
  • sloc: ansic: 216,761; tcl: 24,169; makefile: 3,524; sh: 2,553; ada: 1,681; pascal: 1,139; cpp: 1,001; cs: 879; yacc: 833; asm: 468; perl: 420; xml: 95
file content (12 lines) | stat: -rw-r--r-- 329 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
 
#include "tommath_private.h"
#ifdef BN_S_MP_LOG_2EXPT_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */

int s_mp_log_2expt(const mp_int *a, mp_digit base)
{
   int y;
   for (y = 0; (base & 1) == 0; y++, base >>= 1) {}
   return (mp_count_bits(a) - 1) / y;
}
#endif