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Hi, It seems like I have a pointer problem... Here is my code: I declare a global char pointer in a .h file: char * output_dir; then in the main I print that dir: cout << output_dir << end; cout << &output_dir << end; cout << output_dir << end; The output is...

Hello, The output file string does not seem to change: Output file before: F:\code\practice_code\Input_GUI_dynamic\output Output file after: F:\code\practice_code\Input_GUI_dynamic\output Any ideas? Thanks!

I declare the variables globally in a .h file: /* files and directories */ const char * output_dir; const char * perfusion_file; My “file_name” is actually called “perfusion_file”. In my main program I have: int main(int argc, char** argv) { assign_vars(argc, argv); // assigns variables...

they are both char * a character pointer. I did not declare them as const... do I need to?

Hi, I've got a problem with my mkdir function. After I call mkdir a string called "file_name" gets altered. Do you have any idea what is going on? cout << file_name << "\n"; // name displayed mkdir(output_dir); cout << file_name << "\n"; // name not displayed Thank you!

Hello, I'm trying to execute a bunch of threads in the inner loop but only one batch of inner threads at a time. How do I stop the outer loop until the inner loop threads finish running? Thanks in advance! Outline: outer { not concurrent inner{ executes concurrent threads } }

Hi, I'm writing some basic client server socket programs transferring multiple files from the server to the client. How do I keep the client's socket open so that multiple files go through that one socket? Thanks in advance!

Hi, I want to know how to figure out how long it takes for my program to run. I need a timestamp at the beginning and the end in order to find the total run time. Does anybody know of a class that I could use? Thanks

Hello, does anyone know of any online resource where I can learn about c version internet socket programming? There are some very elementary ones online, but I would like to get some more indepth material. Thanks!

Oh, when i try to make to run the main C++ file with the function prototype from the C file inluded as a header file, the following error pops up: c:\visualc++\udpclient1\macaddress.c(56) : fatal error C1010: unexpected end of file while looking for precompiled header directive Error...

Hi, I've got a c program that cannot be saved as a c++ file. When I try to save it as C++, there are several compile errors. Anyways, I need to get the results from this C program and transfer what it returns to another C++ program. How are you supposed to link and run everything?? I'd...

Thank you for the help, but i have more problems... I need to write my data into 3 output files while the data is output with functions, (which are in the global scope). The problems are: 1. I do not know how to use old C syntax and output to multiple files at once. 2. I do not know how...

Hi! I can't figure out how to save the current OS date into the name of the output file. For example, if i run the program now, i want the output to be printed into a file called something like &quot;Statistics_April4.txt&quot;. This is what i've tried, but i keep on getting errors. Please...

I'm not sure if this helps... you can get the time from the os by using this: #include <math.h> #include <conio.h> #include <iomanip> #include <fstream> #include <iostream> #include <string> #include <stdio.h> #include <vector> #include <stdlib.h> #include <assert.h> #include <time.h> using...

Hello! I'm running a very long simulation program which runs for about an hour and then suddenly stops. I am suspecting that i have a memory leak but i cannot find it. Are there any programs that i could download which could track memory leaks?? Thanks.

Thank you for all your help! After a long time i finally figured out that i made 2 errors: i should have put <iostream> and <iomanip> instead of <iostream.h> and <iomanip.h>

Thanks, but it still doesn't work.... #include <math.h> #include <conio.h> #include <iomanip.h> #include <iostream.h> #include <string> #include <vector> #include <stdlib.h> #include <assert.h> using namespace std; void main() { string word = &quot;hello&quot;; std::cout << word; }...

i've tried that... still doesn't work

I've been using Borland 5.0, and am trying to use Visual C++ 6.0. outputting a string in borland is fine but i can't seem to cout strings in visual. Am i missing an include file?? This is what i've included: #include <math.h> #include <conio.h> #include <iomanip.h> #include <fstream.h>...