It was just like How does your inner voice pronounces the -> in C++?

inner voice? i don't have that. and as far as i know, only every 2nd person or so even reads with a voice in their head, idk, i'm not one of them

Sort the food item on Pi first and then within that list sort them based on Fi i.e iems with the same Pi should be sorted according to Fi. Use greedy programming following that

Which greedy algorithm to use?

Which greedy algorithm to use?

Just don't use such peace of code. This is an example of undefined behavior (before C++17 standard, in C it's still UB). Different compilers may output 21 or 22

This is Undefined Behavior in C++17 as well.

I'm pretty sure this is not undefined behavior in C++17 standard. Before P0145 was adopted (C++17) the code like this was undefined behavior.

Hi everyone. I cannot understand why this code fails reading signed 16 bit integers from a binary files using istream_iterator. The program has no errors but at the end of the execution the vector v is empty. If I try to read chars, it works fine. Here's the snippet https://pastebin.com/s0waHMYA

Hi everyone. I cannot understand why this code fails reading signed 16 bit integers from a binary files using istream_iterator. The program has no errors but at the end of the execution the vector v is empty. If I try to read chars, it works fine. Here's the snippet https://pastebin.com/s0waHMYA

You should be using std::copy

Hi everyone. I cannot understand why this code fails reading signed 16 bit integers from a binary files using istream_iterator. The program has no errors but at the end of the execution the vector v is empty. If I try to read chars, it works fine. Here's the snippet https://pastebin.com/s0waHMYA

istream_iterator uses operator>> which is used for formatted input/output operations. I didnt realize that you are using binary formats. istream and ostream iterators work with formatted input/output. They cant be used with binary file formats.

Oh, I wasn't aware of that So there's no way to read from a binary stream into a vector using one of the standard function like for_each or copy?

Nopes. Not with binary file formats. If you want to be working with binary formats, you should be using the low level unformatted operations like put, get, read, write and so on.

How to identify why am I getting a SIGSEV

If you know how to reproduce it, you can build your app in debug mode (with symbols generated), then run it in the debugger and when it crashes investigate the callstack for the hints of why it could have happened

tictactoe.cpp: In function ‘int main()’: tictactoe.cpp:10:14: error: expected unqualified-id before ‘.’ token TicTacToe.init(); ^ tictactoe.cpp:11:14: error: expected unqualified-id before ‘.’ token TicTacToe.start(); this is the error. but i saved the file. why it's giving the old version's error? what is my fault?

I'm not buliding any app. And I never used a debugger, can you help me get started with debugger

You have included "xox_game.cpp". You should instead include "xox_game.h".

it didnt work.

it didnt work.

which one? xox_game?

https://pastebin.ubuntu.com/p/RVKHZGg8tV/

https://pastebin.ubuntu.com/p/B7KT97RmnB/

Glad to be here @MissRose_bot

if someone knows about it , please give me a hint

Hi, i saw it in an article CC = gcc # Flag for implicit rules CFLAGS = -g # Flag for implicit rules. Turn on debug info # Define a pattern rule that compiles every .c file into a .o file %.o : %.c $(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@ but it is just now working

Let's start with an example first: # Define a pattern rule that compiles every .c file into a .o file %.o : %.c $(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@

You have not defined a default target in your make file. The rule that you have is just for compilation. You also need one for linking. Also what exactly is CPPFLAGS? You havent defined it

but i thought my target is the .o files ? shuld i define a default to be a specific file ? do i have to have a rule for linking although i only want .o files ?

If you want just .o files then you dont need to link them. Specify a default target then so that make knows what to do. Without a target, you willjust get the error shown above. So assuming you have to build 2 object files : a.o and b.o you can do this: CC = gcc # Flag for implicit rules CFLAGS = -g # Flag for implicit rules. Turn on debug info OBJECTS = a.o b.o all: $(OBJECTS) # Define a pattern rule that compiles every .c file into a .o file %.o : %.c $(CC) -c $(CFLAGS) $< -o $@

Sir, thank you very much for your kind help and explanation last qs, if i want to do it to all .c files is it possible ?

Yes but that would be slightly more complicated CC = gcc # Flag for implicit rules CFLAGS = -g # Flag for implicit rules. Turn on debug info SRCS=$(wildcard *.c) OBJS=$(SRCS:.c=.o) all: $(OBJS) %.o : %.c $(CC) -c $(CFLAGS) $< -o $@

Is there any alternative to Boost DLL?

Please Could someone help me with this

If you don't want a portable solution, you can just fallback to the support that your OS offers like dlopen and so on

No, I need a cross platform solution

hi guys I need to reverse print a sentence I received from the user, using pointer and function and its my code: https://paste.ubuntu.com/p/ng4tkqDrbD/ can you help me fix it please?

https://www.geeksforgeeks.org/program-to-reverse-a-string-using-pointers/

thank you so much

In a video lecture, I saw that this was done. strtok((char*)s.c_str," ") s is a string. Here why can I typecast a const char* returned by c_str method to char*