<div>
How about you read the file into a vector, sort it using std::sort and then use std::binary_search to look for the date? 
<a href="http://www.cplusplus.com/reference/algorithm/sort.html" rel="ugc">http://www.cplusplus.com/reference/algorithm/sort.html</a> 
<a href="http://www.cplusplus.com/reference/algorithm/binary_search.html" rel="ugc">http://www.cplusplus.com/reference/algorithm/binary_search.html</a>
</div>

<div>
Forgot the link for vector: <a href="http://www.cplusplus.com/reference/stl/vector/" rel="ugc">http://www.cplusplus.com/reference/stl/vector/</a>
</div>

<div>
I assume that the dates in the file are already sorted due to the way they are inserted. In that case, you can just read dates from the file one at a time, and check whether it's &gt;&nbsp;or equal to the requested date. If equal then you've found it, if &gt;&nbsp;then the file doesn't contain that date. In case it's &lt;&nbsp;you just continue looking. 
 
Note that the yyyy-mm-dd format allows you to do a simple alphanumeric comparison (ie. string comparison).
</div>

<div>
Hi Jamie, 
 
A log file is probably already sorted by the timestamp that you're using for your search. &nbsp;So it should be a relatively simple matter to search the file and comparing your target date with the date in the log. &nbsp;If you encounter a date larger than your target, you know that there is no entry for it. 
 
If the entries can be out of order, you'd do the same search. &nbsp;It's just that you'll have to search the entire file. 
 
If you truly mean console (and not GUI) it's almost trivial. &nbsp;:) &nbsp;(If you were on a unix platform it becomes a one-line command with the tools already available.) 
 
The code below should be pretty close. &nbsp;And of course, you can always print something to indicate true or false and pipe that to the next process, too. 
 
 
 
Good Luck, 
Kent 

<pre><code class="code-10 nolinks" id="code-120724">
#include &lt;stdlib.h&gt;
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
//
#define BUFL 256 // Maximum line length
FILE *F;
//
main (int argc, char **argv)
{
 char Buffer[BUFL+1];
//
 if (argc != 2) // no parameter, exit gracefully assuming a match
 exit (0);
 F = fopen (&quot;History.log&quot;, &quot;rt&quot;);
 while (1)
 {
 fgets (Buffer, BUFL, F);
 if (feof (F))
 break;
 if (memcpy (Buffer, argv[1], strlen (argv[1])) == 0) // match found
 {
 fclose (F);
 exit (0); // exit gracefully
 }
 }
 fclose (F);
 exit (1); // not found, exit with error condition
}
</code></pre>
</div>

<div>
And of course, I still can't see my own typos. 
 
There should be a call to memcmp() in the code above, not memcpy(). &nbsp;:) 
 
 
Kent 

</div>

<div>
Finding something in a file, mmmmmm. 
 
Why not just shell grep instead? &nbsp;If grep 'hits' and an output file exists, then so does your date. No?
</div>

<div>
sadly this has to run on a windows machine or i'd have been done a long time ago. :) 
 
the only problem i've found is that if I set the max line length to 256 or some smaller number, then when the log is longer it won't pick up the most recent dates. 
 
I'm trying to look back 15 days to make sure each date occurs. &nbsp;if a date is missing, I want to call a function to upload some data (thus adding that date to the logfile). &nbsp;So the logfile could have some dates out of sequence. 
 
So in my program, I have this so far. &nbsp;It compiles, but the program crashes when it gets to this section (and of course since it's Windows, no useful reports) 
 
Could this be a possible solution, with some modification? 
 
 

<pre><code class="code-10 nolinks" id="code-120750">bool uploadConfirm(string date1, string date2) {
 
 string str;
 
 //Open the log file
 ifstream logfile(&quot;C:/log/upload_log.txt&quot;, ios::in);
 while (!logfile.eof()) {
 str.push_back(logfile.get()); //write the file into a string for pattern matching.
 
 if(!str.rfind(date2, 0)) { //pattern-match for the date, and if you don't find it...
 makeDataFile(date1, date2);
 
 ofstream uploadAdd(&quot;C:/log/log.txt&quot;, ios_base::app);
 uploadAdd &lt;&lt; date2 &lt;&lt; &quot;added through recursive check&quot;;
 uploadAdd.close();
 } 
 
 }
 }
 
bool checkUploadHistory() {
 //this function will go back 15 days and check to make sure all data files have been processed and uploaded 
 
 string day1;
 string day2;
 
 string line;
 string uploadConfirm(string, string);
 
 //we'll go back 15 days, or until we hit the start date, one or the other.
 for( int i = 1; i &lt;= 15; i++ ) {
 day1 = getDateCheck(i);
 day2 = getDateCheck(i + 1); //both dates are used within the upload function. 
 uploadConfirm(day1, day2); 
 }
 } 
</code></pre>
</div>

<div>
&gt;&gt; sadly this has to run on a windows machine or i'd have been done a long time ago. :) 
You can get grep for WIndows :) 
 
<a href="http://sourceforge.net/projects/unxutils" rel="ugc">http://sourceforge.net/projects/unxutils</a> 

<pre><code class="code-10 nolinks" id="code-120754">The following program versions are covered:
 
bc-1.05
bison-1.28
bzip2-1.0.2
diffutils-2.7
fileutils-3.16
findutils-4.1
flex-2.5.4
gawk-3.1.0
grep-2.4.2
gsar110
gzip-1.2.4
indent-2.2.9
jwhois-2.4.1
less-340
m4-1.4
make-3.78.1
patch-2.5
recode-3.6
rman-3.0.7
sed-3.02
shellutils-1.9.4
tar-1.12
textutils-2.1
unrar-3.00
wget-1.8.2
which-2.4
</code></pre>
</div>

<div>
the grep for windows is an interesting thought. 
 
But how can i test that system call to an external program to see if it found anything?
</div>

<div>
 
I had just assumed that there would be line terminators after each entry. &nbsp;My bad. 
 
Let's take a slightly different tack. &nbsp;How large is the log file? &nbsp;Even if it is potentially several megabytes, reading the entire file into a buffer makes this much easier than we've been going about it. &nbsp;If the file can be huge (hundreds of megabytes or more) using CreateFileMapping() to map the log file to memory could make sense. 
 
Either of these solutions allows you to simply scan the array looking for the target date. 
 
 
Kent 

</div>

<div>
Kent, 
 
I've never had to go down that road before, can you help me get started? 
The log file will never be more than a few hundred K in size, and down the road I'll add in max size abilities, etc. &nbsp; 
 
Right now I'm just getting the concept down. 
 
Thanks.
</div>

<div>
No error handling, minimal testing ... 
 
&nbsp; &nbsp; FILE * pFile; 
 
&nbsp; &nbsp; const char * fileName = &quot;c:\\windows\\WindowsUpdate.log&quot;; 
&nbsp; &nbsp; 
&nbsp; &nbsp; char * buffer; 
&nbsp; &nbsp; 
&nbsp; &nbsp; long size; 
&nbsp; &nbsp; 
&nbsp; &nbsp; if ((pFile = fopen (fileName, &quot;rb&quot;)) != NULL) 
&nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; fseek (pFile, 0, SEEK_END); 
&nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; size = ftell (pFile); 
&nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; rewind(pFile); 
&nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; if((buffer = malloc (sizeof(char) * size)) != NULL) 
&nbsp; &nbsp; &nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; fread(buffer, 1, size, pFile); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Check 'buffer' in here to see if it contains the date. 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; fclose (pFile); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; free (buffer); 
&nbsp; &nbsp; &nbsp; &nbsp; } 
&nbsp; &nbsp; }
</div>

<div>
I've found this and modified it to my needs (maybe). &nbsp;it's using ifstream instead of fopen, which is just more consistent in my coding for this project. &nbsp;Does it seem kosher to you geniuses? 
 
 

<pre><code class="code-10 nolinks" id="code-120795"> bool uploadConfirm(string date1, string date2) {
 
 //we take the logfile and dump it into a single vector string
 vector&lt;string&gt;text;
 string line;
 ifstream textstream(&quot;C:/log/upload_log.txt&quot;);
 while (getline(textstream, line)) {
 text.push_back(line +&quot;\n&quot;); 
 }
 textstream.close();
 string alltext;
 for (int i = 0; i &lt; text.size(); i++)
 alltext += text[i];
 
 //then we check that vector for our date value
 char *str;
 str=alltext;
 if(!strstr(str,date2)){
 makeDataFile(date1, date2); //run the upload function
 
 ofstream uploadAdd(&quot;C:/log/log.txt&quot;, ios_base::app);
 uploadAdd &lt;&lt; date1 &lt;&lt; &quot;added through recursive check&quot;;
 uploadAdd.close(); 
 }
 }
</code></pre>
</div>

<div>
I'm sorry - I was convinced that this was a C question - my bad. 
 
My C++ is ancient, unlike the others here, so I'm sure they'll advise you. 
</div>

<div>
Hi jamied66, 
 
If the file will never be more than a meg, this just gets easier. &nbsp;:) 
 
 

<pre><code class="code-10 nolinks" id="code-120818">#include &lt;stdlib.h&gt;
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
//
#define BUFL (1024*1024) // Make the limit 1MB, not 1,000,000
FILE *F;
//
main (int argc, char **argv)
{
 int Length;
 char *Buffer;
//
 if (argc != 2) // no parameter, abort
 exit (1);
//
 Buffer = new char[BUFL+1]; // Allocate a buffer
 F = fopen (&quot;History.log&quot;, &quot;rt&quot;); // You may want to pass the name on the command line
 // And apply sanity checks in case fopen fails
//
 Length = fread (Buffer, 1, BUFL, F);
 if (Length == BUFL) // We couldn't read the entire file into the buffer
 exit (1);
 Buffer[Length] = 0; // Make sure the buffer is zero terminated
//
 if (strstr (Buffer, argv[1])) // Search Buffer for the date on the command line
 printf (&quot;1&quot;);
 else
 printf (&quot;0&quot;);
 fclose (F);
}
</code></pre>
</div>

<div>
A C++ solution is like 

<pre><code class="code-10 nolinks" id="code-120851">#include &lt;fstream&gt;
#include &lt;string&gt;
#include &lt;iostream&gt;
using namespace std;
 
int main()
{
 string dateToCompare = &quot;2008-07-01&quot;;
 //Open the log file
 ifstream logfile(&quot;C:/log/upload_log.txt&quot;, ios::in);
 string line; 
 while (getline(logfile, line)) {
 if (line == dateToCompare)
 {
 cout &lt;&lt; &quot; date &quot; &lt;&lt; dateToCompare &lt;&lt; &quot; exists in file &quot; &lt;&lt; endl;
 break;
 }
 else if (line &gt; dateToCompare)
 {
 cout &lt;&lt; &quot; date &quot; &lt;&lt; dateToCompare 
 &lt;&lt; &quot; doesn't exist in file &quot; &lt;&lt; endl 
 &lt;&lt; &quot;Next date is &quot; &lt;&lt; line &lt;&lt; endl;
 break;
 }
 }
 logfile.close();
 return 0;
} 
</code></pre>
</div>

<div>
That's VERY CLOSE to what I need. 
It's clean, it compiles with no issues, and it's consistent with the rest of the code. 
However, when I pass it the following file, it doesn't work. &nbsp;It tells me 2008-07-10 doesn't exist, but it is in the file. 
 
it seems like it's only checking the first value. 
i.e., if I edit the file to say: 
 
2008-07-11 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
2008-07-10 
 
it tells me that 2008-07-10 isn't there. 
 
 
<a href="https://filedb.experts-exchange.com/incoming/2008/07_w29/42189/upload-log.txt" target="_blank" class="file-inline" title="sample log file (254 bytes)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>upload-log.txt</a>
</div>

upload-log.txt

<div>
&gt;&gt;&gt; 2008-07-11 
&gt;&gt;&gt;&nbsp;2008-07-10 
 
My assumption was that the dates in the logfile were ascending. 
 
&gt;&gt;&gt;&gt;&nbsp;it tells me that 2008-07-10 isn't there. 
 

</div>

<div>
&gt;&gt;&gt;&gt; it tells me that 2008-07-10 isn't there. 
 
The above code breaks when it reads a date which is younger than the one to look for. 

</div>

<div>
if the dates were in reverse order (??) you need to change the second comparision to 
 
&nbsp; &nbsp; &nbsp;else if (line &lt;&nbsp;dateToCompare) 
 
 
or if the dates are not in order you simply drop the second if like that 
 
&nbsp;... 
&nbsp;ifstream logfile(&quot;C:/log/upload_log.txt&quot;, ios::in); 
&nbsp;string &nbsp;line; &nbsp; &nbsp; 
&nbsp;bool found = false; 
&nbsp;while (getline(logfile, line)) { 
&nbsp; &nbsp; if (line == dateToCompare) 
&nbsp; &nbsp; { 
&nbsp; &nbsp; &nbsp; &nbsp;cout &lt;&lt;&nbsp;&quot; date &quot;&nbsp;&lt;&lt; dateToCompare &lt;&lt;&nbsp;&quot; exists in file &quot;&nbsp;&lt;&lt; endl; 
&nbsp; &nbsp; &nbsp; &nbsp;found = true; 
&nbsp; &nbsp; &nbsp; &nbsp;break; 
&nbsp; &nbsp; } 
&nbsp;} 
&nbsp;if (!found ) 
&nbsp; &nbsp; &nbsp; &nbsp;cout &lt;&lt;&nbsp;&quot; date &quot;&nbsp;&lt;&lt; dateToCompare 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;&lt;&nbsp;&quot; doesn't exist in file &quot;&nbsp;&lt;&lt; endl ; 
&nbsp;...
</div>

<div>
AH. &nbsp; 
 
OK, here is the overall want/desire of this little function: 
 
I have a log file that is appened to each night (oldest to newest at the bottom) after an ftp upload is completed. 
 
as a part of this program, I want to check back 15 calendar days to make sure all data has been uploaded (i.e. the power or connection on the remote PC this program lives on could have been lost) 
 
so, in the main program, I have: 
 
for( int i = 1; i &lt;= 15; i++ ) { 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; day1 = getDateCheck(i); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; day2 = getDateCheck(i + 1); 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; uploadConfirm(day1, day2); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} 
 
that function (uploadConfirm()) is what this will be. 
getDateCheck is a function that returns a datestamp that number of days in the past. i.e. getDateCheck(3) returns the date for 3 days ago. 
 
I need this function to take a given date, and if that date does not exist in a txt file, in any order (it my be somewhat out of order on occassion), then it performs the upload utility for that date. 
 
Sorry for any confusion. 
 

</div>

<div>
&gt;&gt; The log file will never be more than a few hundred K in size 
Well, that being the case the solution below is nice and simple (I'm not saying the others offered aren't). 

<pre><code class="code-10 nolinks" id="code-120915">#include &lt;iostream&gt;
#include &lt;fstream&gt;
#include &lt;vector&gt;
#include &lt;string&gt;
#include &lt;algorithm&gt;
 
typedef std::vector&lt;std::string&gt; logfile_t;
 
 
bool date_exists(logfile_t &amp; logfile, std::string const &amp; date)
{
	std::sort(logfile.begin(), logfile.end());
	return std::binary_search(logfile.begin(), logfile.end(), date);
}
 
bool load_logfile(logfile_t &amp; logfile)
{
	std::ifstream ifs(&quot;upload-log.txt&quot;);
 
	std::copy(
		std::istream_iterator&lt;std::string&gt;(ifs),
		std::istream_iterator&lt;std::string&gt;(),
		std::back_insert_iterator&lt;logfile_t&gt;(logfile)
	);
 
	return !ifs.bad();
}
 
int main()
{
	logfile_t logfile;
 
	if(load_logfile(logfile))
	{
		if(date_exists(logfile, &quot;2008-07-10&quot;))
		{
			std::cout &lt;&lt; &quot;found&quot; &lt;&lt; std::endl;
		}
		else
		{
			std::cout &lt;&lt; &quot;not found&quot; &lt;&lt; std::endl;
		}
	}
	else
	{
		std::cerr &lt;&lt; &quot;Log not found&quot; &lt;&lt; std::endl;
	}
}
</code></pre>
</div>

<div>
&gt;&gt;&gt;&gt; makes more sense to sort the log file only once when it's loaded 
If I read the requirements correctly the file is already sorted by design (&quot;I have a log file that is appened to each night&quot;). 
 
&gt;&gt;&gt;&gt;&nbsp;uploadConfirm(day1, day2); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
Why does the &nbsp;uploadConfirm take two dates? Wouldn't it check 16 days (instead of 15) and all middle days (2 to 15) twice? 
 
To check one date in a already sorted file you could use 

<pre><code class="code-10 nolinks" id="code-120978">
bool uploadConfirm(const string &amp; date)
{
 ifstream logfile(&quot;C:/log/upload_log.txt&quot;, ios::in);
 string line; 
 while (getline(logfile, line)) 
 if (line == date) 
 {
 logfile.close();
 return true;
 } 
 logfile.close();
 return false;
}
 
You would call it like 
 
for( int i = 0; i &lt; 15; i++ ) {
 day = getDateCheck(i+1);
 uploadConfirm(day); 
 }
 
 
</code></pre>
</div>

<div>
wow. that's quite elegant evilrix. Thank you. &nbsp; 
 
Well over my head in this language. 
 
Right now I'm getting a compile error: 
 
`istream_iterator' is not a member of `std' 
 
i'm sure this is a minor typo. &nbsp;you just went so far over my knowledge of C++ that I'm 100% what to do.
</div>

<div>
It's using 2 dates because ultimately those 2 dates are part of an SQL query that gives data from 4:00am to 3:59am. &nbsp; 
 
no other reason.
</div>

<div>
AH. 
 
It was just missing the iterator header.
</div>

<div>
Hi Jamie, 
 
Way back in the early part of this discussion you'd had concern over line lengths. 
 
&gt;&gt;&nbsp;the only problem i've found is that if I set the max line length to 256 or some smaller number, then when the log is longer it won't pick up the most recent dates. 
 
 
Is that no longer a concern? 
 
 
Kent 

</div>

<div>
the newest entries into this log file are at &nbsp;the bottom. &nbsp; 
 
So if the log is 500 lines long, a string that's 256 long isn't going to pull the newest entries if it starts from the beginning of the file, is it?
</div>

<div>
evilrix, 
 
I've plugged what you posted into Dev C++ and it compiles cleanly after adding the iterator header. &nbsp;Thank you. &nbsp;From looking at what it should be doing, this is far and away the most complete solution in my opinion. 
 
I've tested it and it does exactly what I need it to do. 
 
THANK YOU SO MUCH. 

</div>

<div>
&gt;&gt; THANK YOU SO MUCH 
No worries. 
 
&gt;&gt;&nbsp;&gt;&gt; If I read the requirements correctly the file is already sorted by design (&quot;I have a log file that is appened to each night&quot;). 
In descending order. By default binary_search expects data in ascending order. You can overload the comparator of binary_search with your own predicate (so this could be handled) but doing it this way means it doesn't matter what order the data is in, it'll always work. Since the data is small the overhead is, IMO, minimal and therefore justified. That is just my opinion of course :)
</div>

<div>
on more fast question. 
 
When I move that functionality into my existing program, however, I can't get it to compile. What I did was to move the code from inside the main in his example into a boolean function that is defined after the main, and the typef to the top of the file just after the namespace, it won't compile. 
 
I get this error: 
 
&nbsp;`load_logfile' undeclared (first use this function) 
 
how can i set it up so this definition works inside a function, and not just in the main?
</div>

<div>
&gt;&gt; In descending order. 
Actually, thinking about it, you're right... it should be in ascending order :) The test data posted here wasn't though and the fact remains that this way it'll work no matter what order the data is.
</div>

<div>
&gt;&gt; `load_logfile' undeclared (first use this function) 
It's complaining that is can't see the function load_Logfile(), is it before where it's being called from or is there a forward declaration?
</div>

<div>
yes. apparently using a typedef definition in a function requires a little more information. 
 
Type-Defining a Function 
 
The typedef keyword can also be used to define an alias for a function. In this case, you must specify the return type of the function and its type(s) of argument(s), if any. Another rule is that the definition must specify that it is a function pointer. Here is an example: 
 
(from <a href="http://www.functionx.com/cpp/keywords/typedef.htm" rel="ugc">http://www.functionx.com/cpp/keywords/typedef.htm</a>) 
 

</div>

<div>
&gt;&gt; apparently using a typedef definition in a function requires a little more information. 
I'm not quite sure I see the relevance of the typedef and the function. Are you confusing the function load_logfile with the type logfile_t ? 
 
Can you post your code here for review please?
</div>

<div>
You didn't #include 
 
line 521: In checkUploadHistory you are redeclaring function uploadConfirm, why?
</div>

<div>
string header files are an amazing thing. 
 
it's compiling now? 
 
as for the re-declaration? &nbsp;my inexperience and the speed at which i'm trying to get this wrapped up with. 
 
Thanks for the help! &nbsp;fingers crossed!
</div>

<div>
&gt;&gt; Thanks for the help! 
Again, no worries. ;) 
 
&gt;&gt;&nbsp;fingers crossed! 
*crossed*
</div>

<div>
everything is compiling, and it seems to be running as it should through the FTP process, but instead of ending cleanly windows kicks up an error. 
 
Is there a way you know of to glean any info from Windows to see where the offending code lies and/or anything you see that's obvious that would cause an error to kick at the end?
</div>

<div>
&gt;&gt; windows kicks up an error 
Which is? 
 
&gt;&gt;&nbsp;Is there a way you know of to glean any info from Windows to see where the offending code lies 
Tell Visual Studio to break on exceptions 
<a href="http://msdn.microsoft.com/en-us/library/d14azbfh.aspx" rel="ugc">http://msdn.microsoft.com/en-us/library/d14azbfh.aspx</a>
</div>

<div>
I'm not using VC++. &nbsp;I'm using Dev C++ to avoid the .net framework. &nbsp; 
 
The error is simply &quot;This program has encountered a program and has to close...&quot; 
 
AppName: intelitap.exe &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AppVer: 0.0.0.0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ModName: msvcrt.dll 
ModVer: 7.0.2600.2180 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Offset: 000371a5 
 
and the XML from the error file: 
 
&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-16&quot;?&gt; 
 
 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
 
 
&nbsp; &nbsp; 
 
 
&nbsp; &nbsp; 
 

</div>

<div>
&gt;&gt; I'm using Dev C++ to avoid the .net framework. &nbsp; 
You don't' need to use Dev C++ to avoid it, you just write a Win32 rather than a managed app in Visual Studio. All the code examples I've given you were developed in VS2008 Express. 
 
I have no idea how to determine the error from what you've posted I'm afraid.
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<div>
Dev C++ says I've got a segmentation fault 
</div>

<div>
&gt;&gt;&gt;You don't' need to use Dev C++ to avoid it, you just write a Win32 rather than a managed app in Visual Studio. All the code examples I've given you were developed in VS2008 Express. 
 
NOW I stumble on to this piece of information, haha. 
 
I know I have an access violation/ segmentation fault somewhere after I actually upload the file and before the end of the program. &nbsp;I just don't know what would cause it.
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<div>
&gt;&gt; Dev C++ says I've got a segmentation fault 
That means you are trying to modify memory that isn't yours to modify. 
<a href="http://en.wikipedia.org/wiki/Segmentation_fault" rel="ugc">http://en.wikipedia.org/wiki/Segmentation_fault</a>
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<div>
&gt;&gt; NOW I stumble on to this piece of information, haha. 
It's not too late to install it :) 
<a href="http://www.microsoft.com/Express/Download/" rel="ugc">http://www.microsoft.com/Express/Download/</a>
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<div>
I'm converting the program over to VC++ 
 
Running into a linker error. 
 
1&gt;------ Build started: Project: test2, Configuration: Debug Win32 ------ 
1&gt;Compiling... 
1&gt;ConfigFile.cpp 
1&gt;Compiling manifest to resources... 
1&gt;Microsoft (R) Windows (R) Resource Compiler Version 6.0.5724.0 
1&gt;Copyright (C) Microsoft Corporation. &nbsp;All rights reserved. 
1&gt;Linking... 
1&gt;test2.obj : error LNK2019: unresolved external symbol &quot;class std::basic_string,class std::allocator &gt;&nbsp;__cdecl makeDataFile(class std::basic_string,class std::allocator &gt;,class std::basic_string,class std::allocator &gt;)&quot; (?makeDataFile@@YA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V12@0@Z) referenced in function &quot;bool __cdecl uploadConfirm(class std::basic_string,class std::allocator &gt;,class std::basic_string,class std::allocator &gt;)&quot; (?uploadConfirm@@YA_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@0@Z) 
1&gt;C:\Documents and Settings\jamie\My Documents\Visual Studio 2008\Projects\test2\Debug\test2.exe : fatal error LNK1120: 1 unresolved externals 
1&gt;Build log was saved at &quot;file://c:\Documents and Settings\jamie\My Documents\Visual Studio 2008\Projects\test2\test2\Debug\BuildLog.htm&quot; 
1&gt;test2 - 2 error(s), 0 warning(s) 
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== 
 
is that something you can translate?
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<div>
You care calling makeDataFile() before the forward declaration. Why are your declarations in main? Those declarations are scoped to main and only main. The declarations should be at the top of the translation unit.
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<div>
&gt;&gt; is that something you can translate? 
Of course :) 
 
It just looks worse that what it is because of the std::string template class being expanded. This is what it's really saying... 
 
1&gt;------ Build started: Project: test2, Configuration: Debug Win32 ------ 
1&gt;Compiling... 
1&gt;ConfigFile.cpp 
1&gt;Compiling manifest to resources... 
1&gt;Microsoft (R) Windows (R) Resource Compiler Version 6.0.5724.0 
1&gt;Copyright (C) Microsoft Corporation. &nbsp;All rights reserved. 
1&gt;Linking... 
1&gt;test2.obj : error LNK2019: unresolved external symbol &quot;class std::string makeDataFile(class std::string,class std::string)&quot; referenced in function &quot;bool uploadConfirm(class string,class std::string)&quot; 
1&gt;C:\Documents and Settings\jamie\My Documents\Visual Studio 2008\Projects\test2\Debug\test2.exe : fatal error LNK1120: 1 unresolved externals 
1&gt;Build log was saved at &quot;file://c:\Documents and Settings\jamie\My Documents\Visual Studio 2008\Projects\test2\test2\Debug\BuildLog.htm&quot; 
1&gt;test2 - 2 error(s), 0 warning(s) 
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== 

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<div>
Once it build, follow the link above for setting break points of exceptions... you'll most likely need to enable break-points for Win32 exception c00000005 &quot;access violation&quot; as this is the Win32 version of a SEGV (Segmentation Fault). Visual Studio should break into the debugger when the exception occurs, showing you the line of code that causes it. You can then use the debugger to examine the status of all the variables in the call-stack.
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<div class="content wysiwyg-content">
I have a log file that is nothing except a list of datestamps (yyyy-mm-dd) that is appended when an sftp action is called nightly and completed successfully. 
 
I have a condition where I need to check to see if a date exists in that file (i.e. was the upload last Tuesday done). &nbsp;So I'm searching for the absence of a value in a file, and I'm totally stumped. 
 
This is being written in Dev C++ as a windows console app. 
 
Any help is appreciated. 
 
Thanks.
</div>
</div>

I have a log file that is nothing except a list of datestamps (yyyy-mm-dd) that is appended when an sftp action is called nightly and completed successfully.

I have a condition where I need to check to see if a date exists in that file (i.e. was the upload last Tuesday done).  So I'm searching for the absence of a value in a file, and I'm totally stumped.

This is being written in Dev C++ as a windows console app.

Any help is appreciated.

Thanks.

Searching for a single value in a file - C++

Development in most programming languages is frequently done with an editor or integrated development environment (IDE). An IDE is a software application that provide comprehensive facilities to computer programmers for software development. An IDE normally consists of a source code editor, build automation tools and a debugger. XCode, Visual Studio, Adobe Dreamweaver and Eclipse are some of the more popular development tools, but an editor or IDE can be anything from simple text editors to sophisticated programs. Related topics: All programming and development language, database and web based content management systems topics

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C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.