@sam_1208 you need to fflush(stdin) before fgets

@sam_1208 you need to fflush(stdin) before fgets

basic question that is not clear in the book/tutorial i am using: if i write just a class in a file, without anything outside it, is it expected that g++ complains about main() ? i want to write a class in a cpp file, a header with its public parts (can i omit the private things in the header file?), and keep this couple of files to be used by other programs. g++ error message: $ g++ j.cpp /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': (.text+0x20): undefined reference to `main' collect2: error: ld returned 1 exit status $

Why does the second for loop display the original vector elements?

because the elements are passed by value in the first for loop use for(int &el:v)

#include <stdio.h> #include <string.h> #include <math.h> #include <stdlib.h> int main() { char ch; char s[100]; char sen[100]; printf("\nEnter char"); scanf("%c",&ch); printf("Enter word\n"); scanf("%s",s); printf("Enter sentence\n"); fflush(stdin); fgets(sen,sizeof(sen), stdin); printf("%c\n",ch); printf("%s\n",s); puts(sen); return 0; }

No, never flush stdin! That's UB

So what should I do

have you read the group info message?

Ah, just use a bunch of if else and save the data somewhere, like a bunch of bools

#include <stdio.h> #include <string.h> #include <math.h> #include <stdlib.h> int main() { char ch; char s[100]; char sen[100]; printf("\nEnter char"); scanf("%c",&ch); printf("Enter word\n"); scanf("%s",s); printf("Enter sentence\n"); fflush(stdin); fgets(sen,sizeof(sen), stdin); printf("%c\n",ch); printf("%s\n",s); puts(sen); return 0; }

This is how its done!! — #include <stdio.h> #include <string.h> #include <stdlib.h> int main() { char ch; printf("Enter char:\n "); scanf(" %c", &ch); //always keep a blank before %c char s[100]; printf("Enter word:\n "); scanf(" %s",s); //same blank applies for %s; but not necessary, rather good practice until novice. char sen[100]; printf("Enter sentence:\n "); while(strlen(fgets(sen, 100, stdin))==1); //loop till you hit next line as 1:length.. printf("char: %c\n",ch); printf("word: %s\n",s); printf("sen : "); puts(sen); return 0; } ——stdin:I/O—- Enter char: t Enter word: test Enter sentence: this is how it works! char: t word: test sen : this is how it works! Enjoy🙃

@sam_1208 ..read the above code. 🤪

This is how its done!! — #include <stdio.h> #include <string.h> #include <stdlib.h> int main() { char ch; printf("Enter char:\n "); scanf(" %c", &ch); //always keep a blank before %c char s[100]; printf("Enter word:\n "); scanf(" %s",s); //same blank applies for %s; but not necessary, rather good practice until novice. char sen[100]; printf("Enter sentence:\n "); while(strlen(fgets(sen, 100, stdin))==1); //loop till you hit next line as 1:length.. printf("char: %c\n",ch); printf("word: %s\n",s); printf("sen : "); puts(sen); return 0; } ——stdin:I/O—- Enter char: t Enter word: test Enter sentence: this is how it works! char: t word: test sen : this is how it works! Enjoy🙃

What have you done in the while loop

I don't understand move constructors and move assignment operators. Can anyone explain them to me please? Thanks in advance.

I don't understand move constructors and move assignment operators. Can anyone explain them to me please? Thanks in advance.

Is there a way to use value of variable as identifier?

std::map lmao

Can you please elaborate

/admin

This is how its done!! — #include <stdio.h> #include <string.h> #include <stdlib.h> int main() { char ch; printf("Enter char:\n "); scanf(" %c", &ch); //always keep a blank before %c char s[100]; printf("Enter word:\n "); scanf(" %s",s); //same blank applies for %s; but not necessary, rather good practice until novice. char sen[100]; printf("Enter sentence:\n "); while(strlen(fgets(sen, 100, stdin))==1); //loop till you hit next line as 1:length.. printf("char: %c\n",ch); printf("word: %s\n",s); printf("sen : "); puts(sen); return 0; } ——stdin:I/O—- Enter char: t Enter word: test Enter sentence: this is how it works! char: t word: test sen : this is how it works! Enjoy🙃

It does not matter, I use Windows + WSL2

Can any one teach me c language

Anyone know how to make a condition from output of a system function?

Bcs I don't no any I want learn

Can any one teach me c language

Any one teach me from basics

Any one teach me from basics

Just get a book and learn lmao. Nobody's gonna spoon feed you

Can u say how to write a program to implement a EMI calculator

https://stackoverflow.com/questions/646241/c-run-a-system-command-and-get-output

Can u say how to write a program to implement a EMI calculator

Can I DM you? I have my code in pastebin link but not permitted to send here

How to get system drive name like "C:\\" ? Exactly I'd like to get "C:\\ProgramData\\" path.

Modern versions of Windows should accept "/" as path seperator also (even if CMD.EXE might not), if you wanted to avoid escaping. Or maybe the path is in an environment variable accessible with getenv() from <stdlib.h>? https://man7.org/linux/man-pages/man3/getenv.3.html

Modern versions of Windows should accept "/" as path seperator also (even if CMD.EXE might not), if you wanted to avoid escaping. Or maybe the path is in an environment variable accessible with getenv() from <stdlib.h>? https://man7.org/linux/man-pages/man3/getenv.3.html

Please how do i use pow() in linux it responding with error

https://linux.die.net/man/3/pow Good luck!

How can we execute a command if loops fail because of operation not permitted? I'm trying to make a condition from that specific output but still don't understand

Implementation plz.

I already write the code, can you take a look at it?

Hi

doesn't work if you add a space after the word

Dude!!! I cannot help you with understanding of scanf() format specifiers.. You may replace the code with following.. that shall solve your problem. — ... printf("Enter word:\n "); scanf(" %[^\n]%s", s); ... Enjoy🙃

Dude!!! I cannot help you with understanding of scanf() format specifiers.. You may replace the code with following.. that shall solve your problem. — ... printf("Enter word:\n "); scanf(" %[^\n]%s", s); ... Enjoy🙃

i create native makefile(cmake) for my flutter project, i can build with cmake completly but with gradle i get Error C/C++ debug|armeabi-v7a : CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: CRYPTOPP_LIB linked by target "MD5test" in directory C:/Users/MrHaydari/Downloads/cryptopp-master/build

CmakeList.text