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Thanks Cedric Moonen for the response.
ASCII values A – 65 to Z – 90 & a – 97 to z – 122.
But hw to check them in the condition ???
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if ( stemp[j] >= 'a' && stemp[j]<= 'z' ||
stemp[j] >= 'A' && stemp[j]<= 'Z' )
{
// add to map
}
nave
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Suresh H wrote: SCII values A – 65 to Z – 90 & a – 97 to z – 122.
IsCharAlpha
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You can use,
isalpha() API
or
You can check the chars are alphabet or not.
if (((stemp[j] >= 65) && (stemp[j] <= 90) ||
((stemp[j] >= 97) && (stemp[j] <= 122)))
else
Do your Duty and Don't expect the Result
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Hi Appu,
Thanks for the response, I made changes but the code as no effect its adding all the words. Including numbers and special characters.
for(int j =0; j<=wsize; j++)<br />
{<br />
if ( (stemp[j] >= 65) && (stemp[j] <= 90) || <br />
(stemp[j] >= 97) && (stemp[j] <= 122) ) <br />
{<br />
FMap[stemp]=offset; <br />
}<br />
} <br />
}<br />
<br />
Something is wrong in the for loop i am unable to find, what will the cause ?
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Suresh H wrote: if ( (stemp[j] >= 65) && (stemp[j] <= 90) ||
(stemp[j] >= 97) && (stemp[j] <= 122) )
you missed out one bracket and it means the whole condition is wrong
if ( ((stemp[j] >= 65) && (stemp[j] <= 90) )||
((stemp[j] >= 97) && (stemp[j] <= 122)) )
Do your Duty and Don't expect the Result
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i checked it and added brackets but still no effect same output
for(int j =0; j<=wsize; j++)<br />
{<br />
if ( ((stemp[j] >= 65) && (stemp[j] <= 90) || <br />
(stemp[j] >= 97) && (stemp[j] <= 122) ) ) <br />
{<br />
FMap[stemp]=offset; <br />
}<br />
}
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Just copy paste the code, 'coz u r still missing the brackets,
if ( ((stemp[j] >= 65) && (stemp[j] <= 90)) ||
((stemp[j] >= 97) && (stemp[j] <= 122) ) )
the condition is this,
Char should be between A-Z (first &&)
or (||)
Char should be between a-z (second &&)
that is,
if ((&&) || (&&))
Do your Duty and Don't expect the Result
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I copied and pasted but still nt working  again the same output
for(int j =0; j<=wsize; j++)<br />
{<br />
<br />
if ( ((stemp[j] >= 65) && (stemp[j] <= 90)) || <br />
((stemp[j] >= 97) && (stemp[j] <= 122)) ) <br />
{<br />
FMap[stemp]=offset; <br />
}<br />
}
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your condition checking is correct but the logic inside the loop is wrong,
i just posted the reply, or refer below
int nIndex = 0;
for (int j = 0; j < wsize; j++)
{
if (((stemp[j] >= 65) && (stemp[j] <= 90)) ||
((stemp[j] >= 97) && (stemp[j] <= 122)))
{
FMap[nIndex++] = stemp[j];
}
}
FMap[nIndex] = '\0';
Do your Duty and Don't expect the Result
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appu i made changes but i am getting error
for this lines
FMap[nIndex++] = stemp[j]; /* Not FMap[stemp] = offset */
error C2679: binary '[' : no operator defined which takes a right-hand operand of type 'int' (or there is no acceptable conversion)
FMap[nIndex] = '\0'; /* NULL termination */
error C2679: binary '[' : no operator defined which takes a right-hand operand of type 'int' (or there is no acceptable conversion)
Now the problem with adding values to Map.
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Is FMap char[] or what? 
I don't understand what you are trying to do inside the loop, if FMAp is not a char[] or char* ?
Do your Duty and Don't expect the Result
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using namespace std;
typedef map<string,int> FileMap;
#define SIZE 255
char word[SIZE];
int offset;
FileMap FMap;
i forgot to enable Ignore HTML tags in this message (good for code snippets)
-- modified at 4:30 Friday 30th March, 2007
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So FMap is a map to hold string and int, and you want to store words which has only alphates. If this is the senario you are not supposed to insert an item in the map for every charecter checking. Ok here are my questions?
1) How you are diffentiating the words
2) Do you want to remove the special and numeric values and store the string? or totally discarding the string?
3) Is the int value in the needed, whts it going to do if you just want to store the alpha words?
-- modified at 5:22 Friday 30th March, 2007
Here is the idea to proceed,
1)Read a word from the file
2)check for any special or numeric chars in the word, if you found any break the loop and goto step 4.
3)If all the chars are alpha then insert in the map
4)continue the above steps untill the end
All remaing is only the logical part, think and proceed.
-- modified at 5:25 Friday 30th March, 2007
Do your Duty and Don't expect the Result
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Parthi_Appu wrote: if (((stemp[j] >= 65) && (stemp[j] <= 90) || ((stemp[j] >= 97) && (stemp[j] <= 122)))
why bothering comparing to ascii values, when you can use the characters literal ?
if (((stemp[j] >= <code>'a'</code>) && (stemp[j] <= <code>'z'</code>) ||
((stemp[j] >= <code>'A'</code>) && (stemp[j] <= <code>'Z'</code>)))
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 May be influenced by the subject line...
Do your Duty and Don't expect the Result
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Appu still the problem is there not got the solution still.....
i changed the code as below now it only checks for the 1st character if that is valid it will add it to map ..
if ( ((stemp[0] >= 65) && (stemp[0] <= 90)) ||
((stemp[0] >= 97) && (stemp[0] <= 122)) )
FMap[stemp]=offset;
but hwy to check if there is any special character or number in between and hw to add them??
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somehow you retrieve the word and put it in stemp then,
while(..)
{
bool bValid = true;
for (j = 0; j < wsize; j++)
{
if (!(((stemp[0] >= 65) && (stemp[0] <= 90)) ||
((stemp[0] >= 97) && (stemp[0] <= 122))))
{
bValid = false;
break;
}
}
if (bValid)
FMap[stemp] = offset;
}
Do your Duty and Don't expect the Result
Rate this Post, if I helped You
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Hi Appu,,
Thank you very much, code is working i made the changes as below
while(!fin.eof())<br />
{<br />
fin >> word; <br />
wsize = strlen(word);<br />
offset=fin.tellg(); <br />
offset = offset - wsize + 1;<br />
stemp = word;<br />
<br />
bool bValid = true;<br />
<br />
for (int j = 0; j < wsize; j++)<br />
{<br />
if (!isalpha(stemp[j]))<br />
{<br />
bValid = false;<br />
break;<br />
}<br />
}<br />
<br />
if (bValid)<br />
FMap[stemp] = offset;<br />
}
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Parthi_Appu wrote: May be influenced by the subject line...
might be. many people get influenced by subject line
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toxcct wrote: why bothering comparing to ascii values, when you can use the characters literal ?
And why to make these comparisons, if isaplha[^] is available ?
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prasad_som wrote: And why to make these comparisons, if isaplha[^] is available ?
yes, i totally agree, i was just beating a bit the worst code author 
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.
I guess, OP's query is still unsolved. I totally lost him.
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Hi Prasad,
Thank you very much for the help. i made changes a below and its working now perfectly.
i had never used isalpha so i was with ascii code, thanks for the info.
while(!fin.eof())<br />
{<br />
fin >> word; <br />
wsize = strlen(word);<br />
offset=fin.tellg(); <br />
offset = offset - wsize + 1;<br />
stemp = word;<br />
<br />
bool bValid = true;<br />
<br />
for (int j = 0; j < wsize; j++)<br />
{<br />
if (!isalpha(stemp[j]))<br />
{<br />
bValid = false;<br />
break;<br />
}<br />
}<br />
<br />
if (bValid)<br />
FMap[stemp] = offset;<br />
}
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Suresh H wrote: for(int j =0; j<=wsize; j++)
{
One correction need to be done here, It should be modified to,
for(int j =0; j < wsize; j++) .
And use isalpha to identify character.
You code should look like this,
for(int j =0; j < wsize; j++)
{
if (isalpha(stemp[j]))
{
FMap[stemp] = offset;
}
}
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