From b8c357c667ef0f3b894e6cd039fb495a6ce5254a Mon Sep 17 00:00:00 2001
From: fdai7057 <julius-philipp.engel@informatik.hs-fulda.de>
Date: Thu, 2 Feb 2023 10:15:58 +0100
Subject: [PATCH] bug fix: the behaviour of the function power() for 0 to the
 power of 0 and and for an exponent with the value 0 for any positive base in
 the range of the data type is not undefined anymore.

---
 src/stringManipulation.c       | 4 ++++
 test/test_StringManipulation.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/stringManipulation.c b/src/stringManipulation.c
index 228cc8c..8fb83eb 100644
--- a/src/stringManipulation.c
+++ b/src/stringManipulation.c
@@ -55,12 +55,16 @@ char *to_string(int number)
 }
 
 unsigned int power(unsigned int b, unsigned int n){
+	if(b==0&&n==0) return 0;
+	else if(b>=1&&n==0) return 1;
+	else{
 	unsigned int result = 1, ctr = 0;
 	while(ctr<n){
 		result *= b;
 		++ctr;
 	}
 	return result;
+	}
 }
 
 unsigned int toUnsignedInteger(char *ID)
diff --git a/test/test_StringManipulation.c b/test/test_StringManipulation.c
index 5e9d2dc..7da5755 100644
--- a/test/test_StringManipulation.c
+++ b/test/test_StringManipulation.c
@@ -43,7 +43,7 @@ void test_power()
 	/*test block 5*/
 	int testValues_5[] = {0,0,19,2,4,5,11,54,32,12,77};
 	int exponents[] = {0,1,2,7,4,2,0,1,2,4,2};
-	int expectedValues_5[] = {-1, 1, 361,128,256,25,1,54,1024,20736,5929};
+	int expectedValues_5[] = {0, 0, 361,128,256,25,1,54,1024,20736,5929};
 	length = sizeof(testValues_5)/sizeof(int);
 	for(int i=0;i<length;++i){
 		TEST_ASSERT_EQUAL_INT(expectedValues_5[i], power(testValues_5[i],exponents[i]));