I'm trying to learn how to program in C.
I'm simultaneously learning C, C++, & Java. I have also coded in html and javascript successfully making rich websites.
I'm following video lessons on skillshare. Through VirtualBox I've set up a ubuntu installation, created lesson001.c, and attempted to compile it by entering "gcc lesson001.c"
The program:
#include <studio.h>
int main(){
printf("hello, world!\n");
return 0;
}
The error:
lesson001.c:1:10 fatal error: studio.h: no such file or directory.
The instructor is walking through the coding lesson on a pre-configured linux system, so he does have the same errors. It is frustrating that a comprehensive paid lesson set does not include critical setup parameters.
additional info: "gcc -v" returns about 20 lines of information on gcc 9.3.0, so I believe it is installed correctly.
Thank you
Change the #include <studio.h> declaration to #include <stdio.h>. A header file named studio.h does not exist in the standard library.
stdio stands for "standard input/output," and has nothing to do with "studio"! 😀
It should be stdio instead of studio.
stdio stands for Standard Input Output
Correctly formatted code :
#include <stdio.h>
int main(){
printf("hello, world!\n");
return 0;
}
Related
I'm new to coding and doing the first CS50 course exercise where we are taught to code using C and doing the "hello world" activity. I input the code:
#include <stdio.h>
int main(void)
{
printf("hello, world\n");
and when I type in the terminal make hello and ./hello it says hello is a directory instead of doing the command.
What should I do?
C is a compiled language, so once you compile the code, it will output an executable that unless specified by -o [executable-name], will be called a.out. Your hello world program should look like this:
#include <stdio.h>
int main() {
printf("hello, world\n");
}
Don't forget the closing bracket at the end. To compile this code, make sure you have GCC installed and run gcc [program-file-name].c, and replace the second argument with the name of the C file. Once the code is compiled, you can see that a file named a.out has appeared in your current directory. You can then run ./a.out to run the program.
I'm assuming your system comes with GCC, but if it doesn't, there are many resources on Google to help, including https://gcc.gnu.org/install/.
I am compiling my application code on Solaris 5.11, Code is written in C.In the application code I used "fdio" related code. The Solaris box do not have that . How to get the sys/fdio package.
#include <stdio.h>
#include <sys/fdio.h>
int main()
{
printf("Hello World");
}
"test1.c", line 2: cannot find include file:
The file is no longer available in Solaris 11. Here is a copy that will help you compile your code. Drop it in /usr/include/sys It is opensource so there should be a few copies out there.
I am trying to use VSCode for writing and executing C codes for a course in Windows 10. I installed VSCode and MinGW as the instructions said. I'm trying to run a simple code (print "Hello world"), but when I run the code, the output says "Access denied"
//Test code for C in Windows 10
#include "stdio.h"
#include "stdlib.h"
void main(){
printf("Hello world");
}
I'm not sure if it's gonna solve your problem but when you include header from LibC or any different lib you must use this syntax
#include <stdio.h>
#include <stdlib.h>
If you use < symbol, the preprocessor will look in special path defined by your environement else if you use " symbol, the preprocessor will look in your current directory,
I am using code::blocks IDE which runs on GNU GCC compiler. In my project I want to play a .wav sound file in C. I tried to play a .wav sound file with a function called PlaySound. When I compiled the code code::blocks gave me an error - PlaySoundA not declared. My code is-
#include <stdio.h>
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
int main(int argc, char *argv[])
{
PlaySound("C:\Snakes and Ladders\snake.wav",NULL,SND_SYNC | SND_LOOP | SND_FILENAME);
return 0;
}
I checked my path twice. I read about this function on the internet and as per me I am using it in the correct way.
In Google, I read that the function exists in a file called winmm.lib. So I put a line of code after all the headers. It was-
#pragma comment (lib , "winmm.lib")
I also added the name winmm.lib to the additional dependencies of code::blocks. So now when I compile the code it gives me another error - winmm.lib not found. Can somebody please tell me how to use PlaySound correctly.
Remove the pragma comment
Double the backslashes. The backslash is an escape character
Compile with the winmm library. Using MinGW, the command would look like this:
gcc foo.c -o foo.exe -lwinmm
Go to Settings - compiler... - linker settings. on the right side in other linker option write this:-lwinmm
Looking into learning C. As I understand it when I say #include <stdio.h> it grabs stdio.h from the default location...usually a directory inside your working directory called include. How do I actually get the file stdio.h? Do I need to download a bunch of .h files and move them from project to project inside the include directory? I did the following in a test.c file. I then ran make test and it outputted a binary. When I ran ./test I did not see hello print onto my screen. I thought I wasn't seeing output maybe because it doesn't find the stdio.h library. But then again if I remove the greater than or less than signs in stdio the compiler gives me an error. Any ideas?
I'm on a Mac running this from the command line. I am using: GNU Make 3.81. This program built for i386-apple-darwin10.0
#include <stdio.h>
main()
{
printf("hello");
}
Edit: I have updated my code to include a datatype for the main function and to return 0. I still get the same result...compiles without error and when I run the file ./test it doesn't print anything on screen.
#include <stdio.h>
int main()
{
printf("hello");
return 0;
}
Update:
If I add a \n inside of the printf it works! so this will work:
#include <stdio.h>
int main()
{
printf("hello\n");
return 0;
}
Your code should have preferably
printf("hello\n");
or
puts("hello");
If you want to know where does the standard header file <stdio.h> comes from, you could run your compiler with appropriate flags. If it is gcc, try compiling with
gcc -H -v -Wall hello.c -o hello
Pedantically, a standard header file is even not required to exist as a file; the standard permits an implementation which would process the #include <stdio.h> without accessing the file system (but e.g. by retrieving internal resources inside the compiler, or from a database...). Few compilers behave that way, most really access something in the file system.
If you didn't have the file, you'd get a compilation error.
My guess is the text was printed, but the console closed before you got the chance to see it.
Also, main returns an int, and you should return 0; to signal successful completion.
#include <header.h>, with angle brackets, searches in standard system locations, known to the compiler-- not in your project's subdirectories. In Unix systems (including your Mac, I believe), stdio.h is typically in /usr/include. If you use #include "header.h", you're searching subdirectories first and then the same places as with <header.h>.
But you don't need to find or copy the header to run your program. It is read at compilation time, so your ./test doesn't need it at all. Your program looks like it should have worked. Is it possible that you just typed "test", not "./test", and got the system command "test"? (Suggestion: Don't name your programs "test".)
Just going to leave this here : STILL! in 2018, December... Linux Mint 18.3
has no support for C development.
innocent / # cc ThoseSorts.c
ThoseSorts.c:1:19: fatal error: stdio.h: No such file or directory
compilation terminated.
innocent / # gcc ThoseSorts.c
ThoseSorts.c:1:19: fatal error: stdio.h: No such file or directory
compilation terminated.
innocent / # apt show libc6
(Abbreviated)::
Package: libc6
Version: 2.23-0ubuntu10
Priority: required
Section: libs
Source: glibc
Origin: Ubuntu
Installed-Size: 11.2 MB
Depends: libgcc1
Homepage: http://www.gnu.org/software/libc/libc.html
Description: GNU C Library: Shared libraries
Contains the standard libraries that are used by nearly all programs on
the system. This package includes shared versions of the standard C library
and the standard math library, as well as many others.
innocent / # apt-get install libc6-dev libc-dev
So, magic... and a minute later they are all installed on the
computer and then things work as they should.
Not all distros bundle up all the C support libs in each ISO.
Hunh.
hardlyinnocent / # gcc ThoseSorts.c
hardlyinnocent / # ./a.out
20
18
17
16
... ... ...