I am trying to learn C and I have just installed Xcode on my Mac. I wanted to run the first program that was already written
#include <stdio.h>
int main(int argc, const char * argv[])
{
// insert code here...
printf("Hello, World!\n");
return 0;
}
and got build failed.
I created a program in C. The libraries have been downloaded.
Thanks
Are you trying to learn C or Objective-C? As far as I know, XCode is only appropriate for Objective C.
Also, can you post your compiler error, that will help alot.
Related
In Code::Blocks when i run and debug my code it says in the "Build messages section" (error: Cannot find id) I reinstalled both the coding platform (code::blocks) and the compiler individually and nothing has changed.
Try simple program first to see if installation is correct:
#include <stdio.h>
int main()
{
printf("Hello World");
return 0;
}
I generated a new Xcode project in C and immediately looked at the assembly that it produces.
Here is the C code:
#include <stdio.h>
int main(int argc, const char * argv[]) {
// insert code here...
printf("Hello, World!\n");
return 0;
}
The assembly code is almost 400 lines. This seems like a bit much...
Can someone explain why this is?
Also what compiler does it use anyways?
I've started to learn a C language and i am using netbeans IDE.
I tried the most simple classic = printing "Hello World".
code
int main(int argc, char** argv) {
printf('Hello World!');
return (EXIT_SUCCESS);
}
When i run projects, netbeans writes BUILD SUCCESSFUL (total time: ...)
but then it writes
read from master failed
: Input/output error
RUN FAILED (exit value 1, total time: 414ms)
How to make it work?
This is the Hello World program. It includes the relevant library header file. I added the newline with \n to ensure the output buffer is flushed.
#include<stdio.h>
int main(void) {
printf("Hello World!\n");
return 0;
}
Program output:
Hello World!
Your problem is coming from Netbeans IDE. Right click your project and go to properties. In the properties, click run and change the console type to standard output.
#include <stdio.h>
#include <stdlib.h>
int main(int argc,char *argv[])
{
system("PAUSE");
return 0;
}
After i Compiled the programme, i click run. it still tips me " project is not compiled" why? i am sorry, i am a new learner of c.
i am using dev c++, on xp, ctrl+F9 compile then ctrl+F10 run
it shows project is not compiled
multiple definition of main
Maybe in your project there is 2 Main function..
You should at least delete/change one..
if I see, there is 1-3.c and 1c.c
and the compile is error..
[Build Error]
CMIIW
Delete the file 1c.c. You cannot have two int main functions.
I have recently started learning C as a side project. I am working under OpenSuse with the latest NetBeans using the GCC as toolset for compiling.
One of the very first programs that I made was this:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
/*
*
*/
int main(int argc, char** argv) {
double rad = 1;
double result = 0;
result = sin(rad);
return (EXIT_SUCCESS);
}
This is a simple, no-brainer example that should have worked without a problem. However, I get a Build Error: Exit code 2(error in line 18, undefined reference to sin) when trying to compile.
Interestingly enough, if I remove the assignment of the value of sin(rad) to result OR replace rad with a hard coded value, the program compiles just fine.
What am I doing wrong here?
In C, you need to link to the math library:
Add this to the command line options:
-lm
Be sure that your are linking with the math library.
$ gcc myprog.c -lm