As a result, I want to know what this error means, and how to correct it.Here is my code:
Code:
#include <iostream>
#include <cmath>
#include <cstring>
using namespace std;
[code]....
It is once I use the 'try_crack' function inside of main that I get this error.
Dear Advanced c/g++ on boost programers: I have copied and testd a simple (Copy a file with Boost) program from page 372, Example10-10, book(C++ cookbook)
[Code]...
i used my windows box to connect to ftp(fed box) and i keep getting an error saying "The requested name is valid, but no data of the requested type was found." does anyone know why i cant connect?
View 1 Replies View RelatedI've just updated my linux system (Debian) and went to compile some code I'm working on. However it causes some problems, presumable because of GCC up dates. I get many of my subject line errors for example
../../common/Version_Control.cpp: In function int VersionControl():
../../common/Version_Control.cpp:55: warning: deprecated conversion from string constant to char*
So I check up the error and it comes from my error handler code which is a function
extern void SetError(char *string,int error_number)
The net tells me all I need to do is convert char *string to const char *string, however when I do so and recompile I get the following error
Error_Control.cpp: In function �void SetError(const char*, int)�:
Error_Control.cpp:41: error: invalid conversion from �const char*� to �char*�
make: *** [Error_Control.o] Error 1
I think I've done exactly what's recommended ?
My problem is that the warning keeps apperaing when I run g++ compilation.
Say, I have a system runtime function with header (imaginary)sysruntime.h: void printfunction(char *line);
Then in my .cpp file, I will include the above header #include <sysruntime.h>
Then, I do the below:
Line12: char *linetoprint = "Print this line";
Line13: printfunction(linetoprint);
But, I will get the warning message "Line12: deprecated conversion from string constant to 'char*'". (Even though it compiles)
My question is how should I declare my char* so that I wont get this warning message, and can still run printfunction(char* line) correctly?
I don't know if this is the best place to ask this question. This question arose when I had a g++ compilation error: error: expected constructor, destructor, or type conversion before '.' token The above message can be correctly displayed in urxvt or xterm. But in mrxvt the '.' part can't be displayed correctly. Then I noticed that the quote signs are actually different from the usual ones and there seems no way to type ' ' from the keyboard. What are the differences and how to make mrxvt to display ' ' correctly. I found mrxvt very good and easy to configure.
View 4 Replies View RelatedI am trying to generic way to convert the string datatype to other primitive data type. To achieve, i used Template . But i getting error and couldn't resolve the issue and error reported is also clueless.
Code
====
#include <vector>
#include <iostream>
#include <string>
[Code].....
how to convert a dictionary data-type to a string?
actually I am trying to update some json file 's dictionary.
I'm trying to compile a program and it gives me the following:
I checked cmath-util.h:46 and cmath-util.h:48:
I'm not a C person, and the author is unavailable so far.
(For function arguments): Scalar arguments are passed by value, which means that a copy of the argument is made for processing in the function, and changes to the argument in the function won't be reflected back to the calling program. Objects though, are passed by reference: any changes to them in the function are reflected in the calling program. What sense does this make? Why have they done this?
View 3 Replies View RelatedI have a function that returns a boolean value, True of False. Is there any convention whether 0 = False or 0 = True? It should be obvious, 0=False, 1=True. However programs usually return 0 on success and reserve higher numbers for error values. I.e. if the program finishes successfully (function int main() finishes successfully ), it returns 0 - and that contradicts that 0 should be false.
And especially if I want a function to do some computations on parameters passed by reference and return success status. Should it return 1 (true) for success, or should it return 0 for success - like any Unix program does?
Is there any convention for this?
I'm writing a centralized logging piece, and I need to grep out logs that have specific date tags. The date command returns abbreviated months (Sep), via "#date -d yesterday '+%b'" but I need it all caps. ie SEP vice Sep. Otherwise the grep doesn't catch it
View 3 Replies View Relatedwhat is this, and more importantly, how do I fix it?
Quote:
Package Arch Version Repository Size
[Code].....
copy string a to string b and change string b with toupper() and count the chars
View 3 Replies View RelatedI am using a arm compiler to build my program but getting following compiler error at the end -
init.c.text+0x2c): undefined reference to '__libc_csu_fini'
init.c.text+0x34): undefined reference to '__libc_csu_init'
I am using the C++ compiler G++ to compile my programs on Linux Mint 8 - Gnome.
I recently installed QT and when I tried to compile a simple "Hello World!" program it gave me this error:
Quote:
This is the code in HelloWorldQt.cpp:
Code:
I have tried using GTK instead but I get a similar error.
Whwn I am sending mails , I used too get message like
Host found but no data record of requested type.
MTA: postfix
I have moved from MS directX to OpenGL on Linux Debian. My computer is running Jessie version with Gimp. I am trying to use several of the gl 4.0 functions but getting compiler error. I check for OpenGL version and appears to be version 1.5 .... How can I verify the correct openGL version and how can I upgrade to a moder version of at least 4.0?
View 4 Replies View RelatedI am trying, using checkinstall to make eboard to enable use of this program with a DGT electronic chessboard (option not available in the program included in the repositories) according to the instructions given here. After the preliminaries, namely downloading and extracting the source from: [URL]-1.1.1.tar.bz2./configure runs fine but (after su-ing to root), both make install & checkinstall fail after numerous warnings about "deprecated conversion" like:
Code:
board.cc:55: warning: deprecated conversion from string constant to 'char*'
board.cc:157: warning: deprecated conversion from string constant to 'char*'
board.cc: In function 'gboolean board_expose_event(GtkWidget*, GdkEventExpose*, void*)':
board.cc:1414: warning: deprecated conversion from string constant to 'char*'
bugpane.cc:304: warning: deprecated conversion from string constant to 'char*'
I'm a C / assembler programmer so am not use to C++, which I need to use. Basically I'm using my own versions of memcpy, but for long and int rather than char. It's for fast graphics. So I have a char array which I copy to another array. But I copy as either longs or ints, much faster. for example
Code:
void * fastmemcpysprite (void *destaddr, void const *srcaddr, size_t len)
{
[code]...
The first line of this struct:
Code:
struct custom_int {
typedef int big_int;
[code]...
I'm in the process of debugging and compiling about sixty FORTRAN 95 programs and could use a little bit of your help before my brain is fried and fingers are cramped. Thanks for your time!
I receive the following errors:
Here is my code:
I have an error like this : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''bla..bla..' at line 1. while call my function below:
function InsertSQL(strSQL: AnsiString; CS: TCriticalSection; var ErrMsg: AnsiString): boolean;
var
td: TDBCfg;
SockMySQL: PMySQL;
SQL: PChar;
begin
CS.Acquire;
[Code]...
The function always got this error while length of my strSQL contains more than 256 chars.
i have Ubuntu10.10 (kernel-2.6.35-22-generic) installed. struct stat StatBuff;
[Code]...
I have mounted a windows share folder on /mnt. When i gave any directory within /mnt/ to stat function it fails with errorno 75. perror shows "Value too large for defined data type". Example 1 is fail but Example 2 works fine.
I have perl/tk installed and working. I tried using c++/tk and had to change the #include path in the headers to find the tk.h and tcl.h. I tried compiling a simple c++ program with g++ to test that the headers are correct. the line i type at console is:
g++ test.c cpptk.cc cpptkbase.cc -o test.bin
I fixed all previous errors, except for the following.
code....
I've been trying to understand pthread in C a little better. So I made a simple program that takes in a string from the command line and creates a thread to print the string. I've looked online and copied the basic concepts but there are something things I'm confused about. The programs works just fine, but I have questions. Here's what I have so far.
[Code]....
One thing I'd like to know is why the 3rd argument in the pthread_create function which is my SendMessage function needs to be typecasted to a void pointer and then send the address of the function. Also as for the 4th argument, I would see typecasting to void pointer in some of the pthread examples I saw online, but in my case I'm passing a char pointer, would this be correct? In which case would I ever want to pass a void pointer?
Do I need a pthread_exit(NULL) in my main and in the SendMessage function? If so, why? I added the sleep() function so that I could let the pthread_exit function in my SendMessage function execute first. I simply saw that the online examples on pthread had pthread_exit() in both locations.
I am playing around with a new chat program and I have errors that I can not figure out. Here is what I am getting.
parse.c:1638: error: dereferencing pointer to incomplete type
parse.c:1638: error: dereferencing pointer to incomplete type
parse.c:1638: error: dereferencing pointer to incomplete type
here is the code:
if (scan->jail_timeout == 0 && scan->location == prison)
{
command_type |= HIGHLIGHT;
tell_player(scan, " After serving your sentence you are flung out"
[code]....
I have a set of lines as ahown below:
Leon went to school
Leon came back from school..
Leon had dinner...
I have to replace the line containing "dinner" by a single string LUNCH...
I need to creates string suffixes out of a Reference string. for eg. suffixes of abcdefg will be
1)bcdefg
2)cdefg
3)defg
and so on...
create an array of pointers to point to the first few characters and then use that pointer to print the rest of the string.But when i print using the pointer i get GARBAGE values! shudn't std::cout<<ptr[w] print the string following the char it is pointing to? why do i get garbage values?
So if I'm given a location of a file like:
How can I just take the type of the file at the end? I know I can use strrchr() for a period to get the pointer to the period just before file type. Is there a build in string function that will just take the rest of the string from a certain point on forward in the string? I know it wouldn't be much work to make it myself, but I figured I would find out if it already existed before doing it.
