From 5edf49dae7319ce03cd909e1d5c5668e9e25911c Mon Sep 17 00:00:00 2001
From: fallenoak <git@fallenoak.me>
Date: Wed, 1 Feb 2023 22:16:58 -0600
Subject: [PATCH] feat(big): add SBigCompare

---
 storm/Big.cpp |  4 ++++
 storm/Big.hpp |  2 ++
 test/Big.cpp  | 17 +++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/storm/Big.cpp b/storm/Big.cpp
index c3ebc99..dcb2ab7 100644
--- a/storm/Big.cpp
+++ b/storm/Big.cpp
@@ -7,6 +7,10 @@ void SBigAdd(BigData* a, BigData* b, BigData* c) {
     Add(a->Primary(), b->Primary(), c->Primary());
 }
 
+int32_t SBigCompare(BigData* a, BigData* b) {
+    return Compare(a->Primary(), b->Primary());
+}
+
 void SBigDel(BigData* num) {
     delete num;
 }
diff --git a/storm/Big.hpp b/storm/Big.hpp
index 9ab6e1d..8b6d7a1 100644
--- a/storm/Big.hpp
+++ b/storm/Big.hpp
@@ -6,6 +6,8 @@
 
 void SBigAdd(BigData* a, BigData* b, BigData* c);
 
+int32_t SBigCompare(BigData* a, BigData* b);
+
 void SBigDel(BigData* num);
 
 void SBigFromBinary(BigData* num, const void* data, uint32_t bytes);
diff --git a/test/Big.cpp b/test/Big.cpp
index 9ebce01..7acf347 100644
--- a/test/Big.cpp
+++ b/test/Big.cpp
@@ -459,6 +459,23 @@ TEST_CASE("SBigAdd", "[big]") {
     }
 }
 
+TEST_CASE("SBigCompare", "[big]") {
+    SECTION("compares 10 and 1") {
+        BigData* a;
+        SBigNew(&a);
+        SBigFromUnsigned(a, 10);
+
+        BigData* b;
+        SBigNew(&b);
+        SBigFromUnsigned(b, 1);
+
+        CHECK(SBigCompare(a, b) == 1);
+
+        SBigDel(a);
+        SBigDel(b);
+    }
+}
+
 TEST_CASE("SBigFromBinary", "[big]") {
     SECTION("creates bigdata from 0") {
         BigData* num;