Question 1. Write a function which takes a C string as an input and converts it

Question

Question 1. Write a function which takes a C string as an input and converts it to all uppercase characters. For each lowercase character in the C string, simply subtract 32 from it to form the uppercase character. Any non-alphabetic character in the C string should not be changed. You are not allowed to use any other functions to do this. Do not write a main function. Your function does not do any cin
or cout. Hint: lowercase characters are between 'a' and 'z' where the value of 'z' equals the value of 'a' + 25. Remember, C strings are terminated with the '' character. Make sure to properly format all your code.      
         

Question 2. Write a function which takes two string variables (not C strings) as inputs and compares them. If they are equal, the function should return 0. If the first string is less than the second string, return a negative number. If the first string is greater than the second string, return a positive number. You are not allowed to use the compare method of the string data type. You must use the comparison operators. Do not write a main function. Your function does not do any cin or cout. Make sure to properly format all your code.

Question 2. Write a function which takes two string variables (not C strings) as inputs and compares them. If they are equal, the function should return 0. If the first string is less than the second string, return a negative number. If the first string is greater than the second string, return a positive number. You are not allowed to use the compare method of the string data type. You must use the comparison operators. Do not write a main function. Your function does not do any cin or cout. Make sure to properly format all your code.

Explanation / Answer

1) void convert(char str[])

{

int i=0;

while(*(str+i)!='')

{

if(*(str+i)<='Z' && *(str+i)>='A')

*(str+i)=*(str+i)+32;

i++;

}

2) int compare(string str1,string str2)

{

if(str1==str2)

return 0;

if(str1<str2)

return -1;

else

return 1;

}

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