TURBO C++: Unable to open include file stdio.h - c

I am trying to compile a simple C program using TUrbo C++ 3.2. But getting the following error: Unable to open include file 'STDIO.h'
I do have these files in INCLUDE library.

Cant help you if you dont post your code. Check if you use #include <cstdio> (not #include "cstdio" or #include <cstdio.h> or #include "cstdio.h".
#include <cstdio> will always work.

Related

E219 Error when compiling C code in eclipse

When compiling a header file containing the following extract
#include <_Reg/IfxGpt12_reg.h>
#include <_Impl/IfxGpt12_cfg.h>
#include <Port/Std/IfxPort.h>
The following error is shown
ctc E219: ["..\0_Src\4_McHal\Tricore_PinMap\IfxGpt12_PinMap.h" 32/1]
cannot open #include file "_Reg/IfxGpt12_reg.h"
However, the header files do exist in the directory! Is this a toolchain problem?

Troubles with VSCode and Windows for a simple C code

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,

#include "unpipc.h" in c no such file or directory

#include "unpipc.h"
I am trying to use #include "unpipc.h" with cygwin but it gives me an error not such file or directory
I tried to write it as #include <unpipc.h> but still the error occur.
the code is in C language.
As has been noted, that is not a standard file
$ curl 'cygwin.com/cgi-bin2/package-grep.cgi?text=1&arch=x86_64&grep=unpipc.h'
Found 0 matches for unpipc.h

embed ruby code in C

I know there's severals post about this, but i'm stack
here's my C code
#include </usr/include/ruby-1.9.1/ruby/ruby.h>
#include <stdio.h>
#include <stdlib.h>
int main()
{
ruby_init();
rb_eval_string("puts 'hello'");
ruby_finalize();
return 0;
}
i've got the following error when compile it in sublime text 2
In file included from /Users/pierrebaille/Code/Ruby/embedRuby/embedRubyFirst.c:1:
/usr/include/ruby-1.9.1/ruby/ruby.h:1481:24: error: ruby/subst.h: No such file or directory
[Finished in 0.1s with exit code 1]
thanks for your help
You should not hard-code the full path of a header file like
#include </usr/include/ruby-1.9.1/ruby/ruby.h>
proper is
#include <ruby.h>
and told your gcc to search the header file via CFLAGS and libariy via LD_FLAGS, simply command without makefile could be:
gcc -o demo.exe -I/path/to/ruby/headers rubydemo.c -L/path/to/ruby/lib -lruby-libary-name
One of you files you're including in turn includes ruby/subst.h, , but it appears that ruby is not in your path, which is why you have this in your code:
#include </usr/include/ruby-1.9.1/ruby/ruby.h>
Instead of hardcoding paths you should simply add "/some_path/" to your compiler path(s) setting, where some_path contains the folder ruby as a child. Now your own include turns into:
#include <ruby/ruby.h>

Do I need to include system header file in the source if another header file already includes it?

For example, in the header file example.h, I wrote:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
And in the source file example.c, I wrote:
#include "example.h`
Do I still need to explicitly wrote these lines if I need functions of these libararies?
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
Thanks!
No.
Keep in mind that includes works like some kind of text substitution, as it's done by the preprocessor.
When you write, on some file:
#include "someheader.h"
It's just like that line will be replaced with the actual content of the header file.
No, you don't.
Include will, as it's named, include the whole content of your header file in your .c file.
If you are using linux, try cpp example.c or gcc -E example.c to see what #include does. You will run the c-preprocessor on your file, which is the program that interpret all # started instructions before the copilation

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