test-rmint_neg.C
/* rmint_neg.cpp - Negative numbers apprehension of RecInt library test file
Return value.
0 No error
!= 0 Bad result for an operation
*/
#include <recint/recint.h>
#if not defined(LOOPS)
#define LOOPS 10000
#endif
using namespace RecInt;
int main(void)
{
rmint<STD_RECINT_SIZE> a, b, c;
ruint<STD_RECINT_SIZE> p;
DItype r;
// Init.
RecInt::srand(limb(time(NULL)));
// Loop
for (UDItype i = 1; i < LOOPS; i++) {
do { rand(p); } while(p % 2 == 0);
a.init_module(p);
r = DItype(rand_gen());
a = -r;
b = r;
if (a != -b) return 1;
rand(b);
c = p - 1; // > 0 (should equivalent to c = -1;
a = b - c; // <= 0 (must be reset to 0..(p-1) range)
if (a != b + 1) return 2;
}
return 0;
}
/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s