Thread: Finding the ASCII value of a string?

Originally Posted by Nicheter

It should only occur if the seventh char in found is P, whose ascii value is 80, correct? Is there an easier way to do this?

The ASCII code for 'P' is 80, but there is no guarantee that the system's character set is actually ASCII. It is better to compare explicitly with 'P' not just for clarity but because you do not necessarily know the character set. This of course assumes that the compiler is using the same character set as the platform, which is usually true.

You could have an array of strings, e.g.

Code:

const char *fruits[]= { "apple", "banana", "pear", ... } ;

and then loop through that array to see if you find it.

--
Mats

Well you don't need so much "(" and ")"

Code:

if(strcmp(str1,"apple")==0 || strcmp(str1,"bananna")==0 || strcmp(str1,"fruit")==0)

Code:

int bFound = 0;
bFound = (strcmp(str1,"apple")==0);
if(!bFound)
    bFound = (strcmp(str1,"bananna")==0);
if(!bFound)
    bFound = (strcmp(str1,"fruit")==0);
...

for example

Originally Posted by Nicheter

Thanks guys, but Vart, isn't your solution even longer then the initial example?

Strings are short - so IMHO code is more readable...
It takes alittle more lines... so what? Put this code into another function, add loop and array as suggested by matsp... but do not write lines longer than the screen width

matsp's suggestion is probably best, especially if you have over, say, five strings. It's pretty easy to do, too.

Code:

/*! Returns true if \a needle is a fruit.
    \param a The string that might represent a fruit.
    \return True (nonzero) if \a needle is a fruit.
*/
int match(const char *needle) {
    const char *haystack[] = {
        "apple", "banana", "pear", /* ... */
    }
    size_t x;

    for(x = 0; x < sizeof(haystack) / sizeof(*haystack); x ++) {
        if(!strcmp(needle, haystack[x])) return 1;
    }

    return 0;
}

Plus, if you get a lot of strings, you can sort them and use a binary search instead of a linear search quite easily.

Originally Posted by Nicheter

Well, that is to say, it executes with no errors, but the outputted file is nowhere to be found...

Nowhere to be found, or "not where you expect it"?

--
Mats

Originally Posted by Nicheter

it outputs a file 'reformatted.txt' and a search of the entirety of the computer turns up nothing. After checking the program's execution one more time, it does seem to be executing properly, just the file isn't appearing where it should/at all?

Can you post the code?

--
Mats