From 21290535d40530e15d7eca4f0b80a9689bbd1000 Mon Sep 17 00:00:00 2001
From: antifallobst <antifallobst@systemausfall.org>
Date: Wed, 7 Jun 2023 10:14:55 +0200
Subject: [PATCH] feature (libnx): implemented basic math utils

---
 libnx/inc/public/nox/math.h |  6 ++++--
 libnx/src/math.c            | 25 +++++++++++++++++++++++--
 libnx/src/stdio.c           |  2 +-
 3 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/libnx/inc/public/nox/math.h b/libnx/inc/public/nox/math.h
index 84f62a5..ee7a466 100644
--- a/libnx/inc/public/nox/math.h
+++ b/libnx/inc/public/nox/math.h
@@ -5,7 +5,9 @@
 
 #include "stdtypes.h"
 
-uint64_t min(uint64_t a, uint64_t b);
-uint64_t max(uint64_t a, uint64_t b);
+int64_t min(int64_t a, int64_t b);
+int64_t max(int64_t a, int64_t b);
+double  pow(double base, int64_t exponent);
+int64_t abs(int64_t n);
 
 #endif //LIBNX_MATH_H
diff --git a/libnx/src/math.c b/libnx/src/math.c
index c539b33..adea5ff 100644
--- a/libnx/src/math.c
+++ b/libnx/src/math.c
@@ -2,10 +2,31 @@
 
 #include "public/nox/math.h"
 
-uint64_t min (uint64_t a, uint64_t b) {
+int64_t min(int64_t a, int64_t b) {
     return a < b ? a : b;
 }
 
-uint64_t max (uint64_t a, uint64_t b) {
+int64_t max(int64_t a, int64_t b) {
     return a > b ? a : b;
 }
+double pow(double base, int64_t exponent) {
+    double result = 1;
+
+    if (exponent >= 0) {
+        for (int i = 0; i < exponent; i++) {
+            result *= base;
+        }
+    } else {
+        for (int i = 0; i < abs(exponent); i++) {
+            result /= base;
+        }
+    }
+    return result;
+}
+
+int64_t abs(int64_t n) {
+    if (n < 0) {
+        return n * -1;
+    }
+    return n;
+}
diff --git a/libnx/src/stdio.c b/libnx/src/stdio.c
index 6846c2a..741166b 100644
--- a/libnx/src/stdio.c
+++ b/libnx/src/stdio.c
@@ -4,7 +4,7 @@
 #include "public/nox/syscall.h"
 #include "public/nox/math.h"
 
-struct file_T{
+struct file_T {
     uint64_t fd;
     uint64_t cursor;
 };