Forum: C Mar 31st, 2009 |
| Replies: 4 Views: 342 Maybe Beej's Guide to Network Programming (http://beej.us/guide/bgnet/output/html/multipage/index.html) |
Forum: C Mar 31st, 2009 |
| Replies: 10 Views: 680 There is an initialization failure ...
for( i = 0; i < n; i++ ) numberlist[i] == rand() % n ; |
Forum: C Mar 24th, 2009 |
| Replies: 13 Views: 2,090 Maybe print the error message (see grapherrormsg(...)) to a file to get a clue about what's wrong. |
Forum: C Mar 14th, 2009 |
| Replies: 5 Views: 524 void createAlpha(char **&data, int elements);
Sorry, but that is strictly a C++ feature, not C. |
Forum: C Mar 9th, 2009 |
| Replies: 3 Views: 465 struct test
{
int completion;
};
int main(int argc, char *argv[])
{
test code;
code // <- type in a . and a list displaying
// 'Variable int completion' should appear |
Forum: C Mar 9th, 2009 |
| Replies: 3 Views: 465 It's called code completion/class browsing in wxDev-C++. See Tools/Editor Options/Class browsing. |
Forum: C Mar 3rd, 2009 |
| Replies: 6 Views: 445 Try going through the py2exe tutorial (http://www.py2exe.org/index.cgi/Tutorial).
If you'll use py2exe to assemble all the files your python prog needs, you can skip the idea of coding anykind... |
Forum: C Sep 26th, 2008 |
| Replies: 8 Views: 842 Hmm .. or even less
puts("*\n***\n******\n*******\n*********"); |
Forum: C Aug 21st, 2008 |
| Replies: 3 Views: 410 Maybe sprintf() (http://www.cplusplus.com/reference/clibrary/cstdio/sprintf.html) would be of use ...
char filename[20];
for(int ii = 0; ii < 10000; ii ++)
{
sprintf(filename,... |
Forum: C Aug 15th, 2008 |
| Replies: 13 Views: 2,444 What if the last line contains the id being searched for and that line does not end with a newline? |
Forum: C Aug 6th, 2008 |
| Replies: 24 Views: 1,990 Just out of curiosity, in which header can one find Gotoxy? |
Forum: C Aug 4th, 2008 |
| Replies: 15 Views: 1,574 A minimal example of displaying three message boxes, each message box is displayed by a dedicated thread ...
#include <windows.h>
DWORD WINAPI ThreadProc(LPVOID lpParameter)
{
... |
Forum: C Aug 3rd, 2008 |
| Replies: 15 Views: 1,574 Unless you use modeless dialog boxes, as suggested by Ancient Dragon, you need to have multiple threads in order to display multiple message boxes simultaneously by means of the MessageBox() function. |
Forum: C Jul 23rd, 2008 |
| Replies: 8 Views: 1,035 ...
double CelsiusToFahrenheit(double c);
...
int main()
{
...
}
double CelsiusToFahrenheit(double c) ; // <- remove the semicolon
{ |
Forum: C Jul 22nd, 2008 |
| Replies: 38 Views: 2,384 Isn't that quite obvious if you take a close look at the loop,
for(k=1;k<=10;k++)
{
// do this ten times ...
// ask the user for the file name <-> shouldn't you
// open the... |
Forum: C Jul 15th, 2008 |
| Replies: 2 Views: 468 The function is malloc(), not maloc(). |
Forum: C Jul 13th, 2008 |
| Replies: 23 Views: 1,565 see here (http://www.daniweb.com/forums/misc-explaincode.html) |
Forum: C Jul 6th, 2008 |
| Replies: 17 Views: 1,237 It's really best if you just post the code you are having problems with, explaining what the trouble is. |
Forum: C Jul 4th, 2008 |
| Replies: 15 Views: 17,622 I think it just happens quite easily, consider a newbie who reads a thread and maybe sees something relevant/interesting in the "Similar threads" section (at the bottom of the page), clicks on a link... |
Forum: C Jun 25th, 2008 |
| Replies: 4 Views: 848 I think you posted wrong version of your code, namely it should not even compile due to the line
scanf("%d, %d, %f", &d, &d, &f);
You don't have the variables d, or f in the program. Maybe... |
Forum: C Jun 23rd, 2008 |
| Replies: 15 Views: 4,012 Here is the link John A posted ...
http://www.opengroup.org/onlinepubs/000095399/functions/exec.html |
Forum: C Jun 11th, 2008 |
| Replies: 2 Views: 501 int myfunction(int argc, char *argv[]){
int i;
for(i=0;i<argc;i++)
unlink(argv[i]);
}
int main(){
int argc; // argc is not initialized to any value, what might be its value here ??... |
Forum: C Jun 11th, 2008 |
| Replies: 6 Views: 733 Like Edward already showed, you need to know the size of the memory block to copy, then use malloc() to allocate a buffer large enough, and finally use memcpy() to copy the data to the allocated... |
Forum: C Jun 10th, 2008 |
| Replies: 26 Views: 3,045 Have you tried Vintage Computer Forums?
http://www.vintage-computer.com/vcforum/index.php |
Forum: C Jun 10th, 2008 |
| Replies: 3 Views: 2,951 You might use strtok(), see
http://www.cplusplus.com/reference/clibrary/cstring/strtok.html |
Forum: C Jun 9th, 2008 |
| Replies: 13 Views: 2,311 The problem probably lies in how you use indexes. Note that array indexes are zero-based i.e. if you have an array holding 5 elements, the last valid index is 4, not 5. Consider
const char... |
Forum: C Jun 8th, 2008 |
| Replies: 11 Views: 1,363 You might post the relevant parts of the code, otherwise there is no way to help much more. |
Forum: C Jun 8th, 2008 |
| Replies: 11 Views: 1,363 How about getting rid of the original magic altogether? So you'd have untouched argv[] and simply hard-coded opt_httphost = "the hard-coded address";. |
Forum: C Jun 8th, 2008 |
| Replies: 11 Views: 1,363 The memory that argv[0] points to is not writable.
Why don't you just do something like
opt_httphost = "the hard-coded address"; |
Forum: C Jun 8th, 2008 |
| Replies: 8 Views: 705 Let's say you type in one letter 'a' and press Enter, at that point, in the input buffer are two characters, the letter 'a' plus the newline character '\n'.
Now your program reads the letter 'a' and... |
Forum: C Jun 5th, 2008 |
| Replies: 8 Views: 1,267 It's just not legal C, you are expected to write an expression there, not a return statement. |
Forum: C Jun 5th, 2008 |
| Replies: 27 Views: 3,296 You open the port specifying FILE_FLAG_OVERLAPPED, but the WriteFile() call is missing the required pointer to an OVERLAPPED structure.
(87 == ERROR_INVALID_PARAMETER) |
Forum: C Jun 3rd, 2008 |
| Replies: 3 Views: 763 See here for information on the permissions
http://linux.die.net/man/2/open
You might post this code that always produces empty copies so we can see what goes wrong. |
Forum: C May 25th, 2008 |
| Replies: 15 Views: 2,027 One practical approach, to get you started, would be to post the code that is not compiling (along with the error message(s)). |
Forum: C May 23rd, 2008 |
| Replies: 11 Views: 1,693 Unable to answer that one, but just for reference:
Compute natural logarithm / log()
http://www.cplusplus.com/reference/clibrary/cmath/log.html
Compute base-10 logarithm / log10()... |
Forum: C May 22nd, 2008 |
| Replies: 5 Views: 1,388 Use plain %f with a double with printf(), see
http://msdn.microsoft.com/en-us/library/hf4y5e3w(VS.80).aspx
Mr Sinkula once pointed out (to me) that:
"using %lf with printf is undefined behavior... |
Forum: C May 18th, 2008 |
| Replies: 2 Views: 454 :icon_wink:
Well, you just have to step forward and post something relevant to the problem(s). |
Forum: C May 15th, 2008 |
| Replies: 2 Views: 712 |
Forum: C May 13th, 2008 |
| Replies: 5 Views: 666 << if I try to push changed data using function, I get just the same word n times:
That happens because you are pushing pointers to one single buffer you have in your whole program, and that buffer... |
Forum: C May 10th, 2008 |
| Replies: 8 Views: 880 >> Why does the DLL did not get other values of the array??? I do not understand that.
You output to the very same memory address each calculation
out[0]=m_A[n+1]; // out[0] output from "C" to... |