Commit arithmetic Subtraction float

src/arithmeticSubtraction.c

@@ -8,3 +8,8 @@ int* subtraction_integer(int a, int b) {
     *result=a - b;
     return result;
 }
+float* subtraction_float(float a, float b) {
+    float* result= malloc(sizeof (float));
+    *result=a - b;
+    return result;
+}

src/arithmeticSubtraction.h

@@ -3,5 +3,6 @@
 #define THEADMIRALS_ARITHMETICSUBTRACTION_H
 
 int* subtraction_integer(int a, int b);
+float* subtraction_float(float a, float b);
 
 #endif //THEADMIRALS_ARITHMETICSUBTRACTION_H

test/test_arithmeticSubtraction.c

@@ -15,4 +15,10 @@ void test_arithmeticSubtraction_subractionoftwonumbers(void) {
     result = subtraction_integer(14, 7);
     TEST_ASSERT_EQUAL_INT(expectedResult, *result);
 }
+void test_arithmeticSubtraction_subractionoftwonumberswithfloat(void) {
+    float expectedResult = 7;
+    float* result;
+    result = subtraction_float(14, 7);
+    TEST_ASSERT_EQUAL_FLOAT(expectedResult, *result);
+}