For 2 equal elements, doesn't it just changes the order?

Try < and say if error is gone

no matching function for call to 'std::priority_queue<node, std::vector<node>, bool(node&, node&)>::priority_queue()' priority_queue<node, vector<node>, decltype(comp)> q;

Because comparison function cant be changed after priority_queue creation

I thought in this context function will also degrade to pointer

Oh, decltype((comp)) (yep, double parentheses) might also work

I thought in this context function will also degrade to pointer

Yeah, I underestimated decltype

#include <iostream> using namespace std; void display() { static int arr[2]; //some code to set all array elements to zero cout<<arr[0]; arr[0]=1; } int main() { display(); display(); return 0; } Output : 01 Needed : 00 So I'm trying to use a static array multiple times via function call, but I need every element to be zero for each call. Any way to achieve this without using a loop that sets the elements to zero one by one?

Memset?

Does it work for integer arrays too?

Yep.

K thanks, that was easy 😅

🔥😇

Do u know why it's defined in string.h tho? Looks like it should belong in stdlib.h or something

https://stackoverflow.com/q/9782126/8258801

Thanks

Does someone know about a C++ boost telegram group?

Does someone know about a C++ boost telegram group?

What is struct in C , and what does it do ?

What is struct in C , and what does it do ?

I want to know how it's working

What is it's function ?

main() { int a = 90 , b = 100 ; a++ ; a = (a ^ b) ^ (a = b ); b = a^b^a ; --a ; printf("%d %d",a++,b++) ; }

struct s { int si; union u { float uf; char uc; }; }; main() { printf("%d",sizeof(struct s)); } What is its outpot and how ?

struct s { int si; union u { float uf; char uc; }; }; main() { printf("%d",sizeof(struct s)); } What is its outpot and how ?

Suzeof( int + float)

and char also.

Size of union is the size of biggest data type in it

Ah, exactly. Still i don't understand for using union in 2019 with modern computers/phones.

How can I fix it?

Problem is, you dont understand what your d is for

kinda like scanf(“%i%s”, someint, somestring);

Don't forget to take their addresses.

&someint

&someint

does fget only scan for one string variable or can you do more then one like scanf

http://www.cplusplus.com/reference/cstdio/fgets/

thanks

i figured out what i was doing wrong now that i understand the difference between what fgets and scanf return

Good job.

do you use valgrind?

Nope. I'm writing only with C++ on Windows with Visual Studio.