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fieldpattern:: error detection in EASY

This commit is contained in:
Zeno Rogue 2020-01-15 18:13:06 +01:00
parent b12e1a71dd
commit 19769feaaf
1 changed files with 4 additions and 0 deletions
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4
fieldpattern.cpp
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@ -64,6 +64,9 @@ EX int btspin(int id, int d) {
}
#if HDR
static const int ERR = -99;
struct fpattern {
unsigned force_hash;
@ -94,6 +97,7 @@ struct fpattern {
int add(int a, int b) {
#ifdef EASY
if(a == ERR || b == ERR || a*b<0) return ERR;
return (a+b)%Prime;
#else
return m(a%Prime+b%Prime) + Prime * m(a/Prime+b/Prime);