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Thanks for the info

1. Should I name an unchanging variable received as input from the user when starting a program with all CAPS like a constant?

2. When declaring variables at the start of a function, is there any...

I have a directory with a .htaccess file within it, and a folder in the same directory containg thumbnail images. The actual page where the thumbnails are displayed is above these directories and...

Thanks for the info. I was just trying to make a program that produced a wav file with a simple sine wave and needed specific sizes for the header and audio data. It was just a test and it worked...

I need a two byte integer and a four byte integer. I could use a short and an int, but how I would specify such integers so as to guarantee their length?

Ok the problem was that I forgot that with the range specifier you need to have enough room for a terminating null byte as well, so that was overwriting the first byte of the next declaration with a...

Thanks, I ended up making my own simple scan function though, which stores either characters, or digits converted to integers, in a supplied void pointer array, along with the last character taken...

This is the scanf line: res = scanf("%1[yn]", &chr); Is there anything wrong there?

I had a char "chr" and a char array "filename" declared on the same line "char chr, filename[256];", and i was getting a weird segmentation fault when i tried to free an array of char pointers for...

thanks for the suggestions, i'll give them a try

I am using gnu deugger and want to have it continuously display the local vars. I can use `info locals` to display them once, but I'm not sure how to keep them displayed. It is tedious using `disp` ...

You mean do it manually?

i need to determine whether stdin is empty when scanf fails, because if it isn't I want to get a character from it with getc. If I use getc when it is empty though it will prompt the user for input...

Thanks for all the replies. I do realize it wont make it any faster, but I actually find it easier to read this way due to it being only one line rather than two, adding another level of indentation.

I have an expression in C: if (aaa = bbb && (ccc = getc(stdin)) != ddd), and I need the first expression to be evaluated first. Does C, and for that matter other programming languages, always...

Thanks Philip

This works:
fProfList.open("profList.txt", ios::in);
This doesn't:
fProfList.open(temp, ios::in);

error = 91 C:\Dev-Cpp\programs\fiotest2.cpp no matching function for call to...

Nice, thanks!

I have another problem. How do I write the vector back to the file with a new line after each element EXCEPT the last? At the moment with this:
for (ref = container.begin(); ref != container.end();...

Oh I see, I have to use an iterator to delete the whole element. Silly me!

Thanks, I forgot about that mode! I have one more question though. When I use erase() on the vector it only seems to delete the text and not actually get rid of the element. How do I get rid of the...

Thanks, but could you be a bit more specific. Here is my current code:



#include<fstream>
#include<iostream>
#include<string>
#include<vector>

using namespace std;

I want to read the text of a file to a vector, then add or delete some stuff and then save the vector back to the file, but I'm not exactly sure how to do it. For example if I just write the modified...

cool, thanks

Cheers, that works well :). What does the clear() function do though when used with i/o though and why do i need to use it?