Anyone have any idea about Comparison and swapping values in Sorting Algorithms?

thx for accepting me

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

If you need the user to enter either float or int...then why not just simply print a message to do so

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

i would just cast the input to string and then check if it contains point in it...

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

you want to tell if the input is float or int, right?

seems like no.

bullshit. i am talking to myself

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

Why don't you write your own function?

Because I'm starting with programming. Either way... Seems like C has no way to check input types

If you need the user to enter either float or int...then why not just simply print a message to do so

Because users are... Users?

Yes

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

https://github.com/chandradeepdey/C_inputlib see the get_int(), get_long(), get_unsigned() functions in this. if you decide to use the functions in your code, be sure to change the cust_getline() to getline() because getline() is much faster.

https://github.com/chandradeepdey/C_inputlib see the get_int(), get_long(), get_unsigned() functions in this. if you decide to use the functions in your code, be sure to change the cust_getline() to getline() because getline() is much faster.

Thank you @chandradeepdey I'll give it a look right now

hi guys! Im new at C. Quick question Is there any way to check if user inputs anything else than a number? I tried ISDIGIT but it takes a char as argument and I need the user to input either a float or int. So isdigit isnt't working for me.

getchar isdigit ungetc

Hi, how do I get a random number between 0 and 255?

Hi, how do I get a random number between 0 and 255?

C or C++?

C or C++?

c++

Hi, how do I get a random number between 0 and 255?

there are multiple ways

All the ways are somewhat broken... :-/

and multiple google results

All the ways are somewhat broken... :-/

As in bad randomness

All the ways are somewhat broken... :-/

yes. still gets the job done

yes. still gets the job done

I want to use the numbers for security stuff…

std::mt19937 gen{std::random_device{}()}; std::uniform_int_distribution<> dist{0, 256}; dist(gen()); // This returns a random integer between 0 and 256

I want to use the numbers for security stuff…

And bad randomness in such is fatal

std::mt19937 gen{std::random_device{}()}; std::uniform_int_distribution<> dist{0, 256}; dist(gen()); // This returns a random integer between 0 and 256

what exactly is std::random_device{}()? is it /dev/random which has good randomness?

what exactly is std::random_device{}()? is it /dev/random which has good randomness?

To make the generator generate "almost random" numbers, you need hardware support. It's more or less the equivalent of srand(time(0));, but in a better way

getchar isdigit ungetc

I need to store the input in float variable. Isdigit needs char argument so it won't do

To make the generator generate "almost random" numbers, you need hardware support. It's more or less the equivalent of srand(time(0));, but in a better way

my computer has a special hardware to generate random data, may I use that directly?

To make the generator generate "almost random" numbers, you need hardware support. It's more or less the equivalent of srand(time(0));, but in a better way

what is wrong with srand() ?

The constructor accepts some parameters to tell the object from where it must take the random seed (like /dev/random)

what is wrong with srand() ?

It's C and implementation dependent, you can't control where the randomness is generated

my computer has a special hardware to generate random data, may I use that directly?

a "hwrng"

The constructor accepts some parameters to tell the object from where it must take the random seed (like /dev/random)

ah, perfect

std::mt19937 gen{std::random_device{}()}; std::uniform_int_distribution<> dist{0, 256}; dist(gen()); // This returns a random integer between 0 and 256

and the way you showed is better?

This a example of bad randomnes, what I get from most examples in C++

This a example of bad randomnes, what I get from most examples in C++

what is this?

While this is good randomness

randomness

what is this?

a "randomly" generated picture

a "randomly" generated picture

how did you get this one ?

and the way you showed is better?

The std::random_device is just a way to generate "true randomness". The std::mt19937 is a decent pseudo-random number generator, taken an initial seed. The std::uniform_int_distribution is used to generate the numbers following a uniform distribution (there's many distributions to choose from in the STL)

And that's why the srand-rand way of generating random numbers is so inconvenient, because you can't really control all the stuff the random in the STL can

Hi guys, hope you're doing great. I need some help with google app engine. I wanted to know if ffmpeg can be used in Google App Engine. Feel free to DM me or message on group. Help will be appreciated. Thank You.

Hi. Is there an off-topic group? I'd like to ask a signal processing related question.

Hi. Is there an off-topic group? I'd like to ask a signal processing related question.

#ot

Hi guys, hope you're doing great. I need some help with google app engine. I wanted to know if ffmpeg can be used in Google App Engine. Feel free to DM me or message on group. Help will be appreciated. Thank You.

Why not?

Hi I'm new.

Hi I'm new.

Hi new

Hey new

where’s delete

where’s delete

He got purged haha... Gn

I am here to enhance my knowledge.

Is it right place?

Is it right place?

Kind of

Sorry guys have a question the similarities of structure and union are impeccable, but still the two can not be concluded to be the same. justify using clear C programs code for each showing structure differences.  Help me plz how can answer that question 👆

Guys Could anyone tell me why this keeps failing? I get a infinite loop :S

everytime I input anything besides a number like a char the infinite loop starts

Guys Could anyone tell me why this keeps failing? I get a infinite loop :S

Add this before the second scan : while(getchar() != '\n') continue; It is the best i've found to solve your problem

Add this before the second scan : while(getchar() != '\n') continue; It is the best i've found to solve your problem

Would you please clarify why does the infinite loop happen and how adding that line solves the problem? im starting with C

thx!

What are some situations when C/C++ is more appropriate than python, since python is easier to program in?

Hi there me Dinesh just now completed schooling where looking to do engineering ECE. so doing this can I work for a software engineer? Plz help me

Can Anyone can tell about vscode debugging? I'm getting debug out on cmd window not on terminal of vscode How to resolve it

Why not?

Have you used it? If so then do tell me

Guys Could anyone tell me why this keeps failing? I get a infinite loop :S

while (scanf("%f", &num) < 1) { scanf("%*[^\n]"); ... }

while (scanf("%f", &num) < 1) { scanf("%*[^\n]"); ... }

Syscall ?

everytime I input anything besides a number like a char the infinite loop starts

change float to double

What are some situations when C/C++ is more appropriate than python, since python is easier to program in?

speed

speed

??

Use QT

WTF

it was just a link to my github repository 😓

Hi there, I want to implement some "OOP" style in my C code. Could you give some constructive criticism of my code.

Is there at least some opportunity to send links?

_____github.com/Neboron/SimpleFB

Is there at least some opportunity to send links?

Not in 14 hours of ur joining

char* reverse_word(char *arr){ int i,c,k,length,temp; length=strlen(arr)-1; k=length; for (i=0; i<length/2 ;i++){ temp =arr[k]; arr[k]= arr[i]; arr[i]= temp; k--; if(k == (length / 2)) break; } return arr; }