There is a standard function called tolower() (and a companion function called toupper()) that can be used to evaluate each char of a string one at a time and change it to the appropriate case as needed. So to use it, look up tolower() in your compilers help section and make sure you include any necessary standard headers. Then obtain input string and determine it's length. Then loop through the string looking at each character one at a time, passing each char to tolower() as you go

inputString[i] = tolower(inputString[i]);

Here is a function that'll do it:

Good luck, LamaBot

Go with lerner's idea.

Lazaro Claiborn's idea, regardless of whether it works or not, is rather obfuscated.

It also has other problems...

http://www.cprogramming.com/tips/sho...ount=30&page=0

Umm... obfuscated???? It is rather easy to understand, which is why I wrote it like that. Actually, strlen(str.c_str()) could be replaced with, say "str.length" perhaps. However, it is not obfuscated. Let me explain what the code does:

You pass the string you want to be converted to all lower case, which is what the OP specified
It loops and iterates through dealing with each element of the string
If the elements corresponding hex value is not in between the values within the capital alphabetcial letter range defined by ascii, it won't do anything (i.e won't convert numbers)
If it is within range it adds 20 using hex notation (i.e 0x20) from its corresponding hex value - which effectively converts it to its lowercase counterpart.

That is very easy to understand to say the least.

LamaBot

If you say so. But you wouldn't give a newbie that.

>Actually, strlen(str.c_str()) could be replaced with, say "str.length" perhaps.

Try reading my link again. Then you might realise what you're doing wrong.

Well that'd be the problem if the string contained a massive amount of characters - which you nor I know. I read the link you'd posted and I still don't realise the problem. Lol. :lol: I realised that might be problem therefore I suggested "str.length" as alternative. Overall, if he's a newbie trying to learn he probably doesn't care, yet, the specific operations of a function, such as strlen(...); not to imply it doesn't matter, becuase code optimization is vital to a programs performance. You have to consider the obvious.

Good luck, LamaBot

str.length() <-- Brackets

:lol:

str.lenght() <-- Enclosing Parenthesis

:lol: :lol: :cheesy:

[[ <--- Brackets
[ <--- Opening Brackets
] <--- Closing Brackets
[] <--- Enclosing Brackets


LamaBot

str.lenght() <-- Enclosing Parenthesis

Er not were I'm from. All I was pointing out was you forgot them when u said use str.length.

The main thing is you have learnt why it is a bad idea to use strlen() in a for loop and why it is bad to give newbies non-intuitive code as examples. So overall, everyone is happy. Yay.

:lol: