Building a C Code using Visual code studio having a third-party Library file from National Instruments. I have already included header file "NIDAQmx.h" to the code. The library file is still not linked with my code.
Please find my code below:
`#include<stdio.h>
#include"C:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\include\NIDAQmx.h"
TaskHandle taskHandle=0;
int ret=0;
void main()
{
printf("Hello world");
ret=DAQmxCreateTask("task",&taskHandle);
printf("Return for creating task is %d\n",ret);
DAQmxStopTask (taskHandle);
DAQmxClearTask(taskHandle);
printf("Task closed ");
}`
tasks.json file task
given below:
`{
"tasks": [
{
"type": "shell",
"label": "C/C++: gcc.exe build active file",
"command": "C:\\MinGW\\bin\\gcc.exe",
"args": [
"-g",
"test.c",
"-o",
"test.exe",
"-LC:\\Program Files (x86)\\National Instruments\\Shared\\ExternalCompilerSupport\\C\\lib32\\msvc",
"-lNIDAQmx"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}`
When I am running the C Code, I got the Consol Output as follows:
**[Running] cd "c:\Users\User\Documents\my_c\src\" && gcc test.c -o test
&& "c:\Users\User\Documents\my_c\src\"test
c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-
w64-mingw32/bin/ld.exe:
C:\Users\User\AppData\Local\Temp\ccKqDitK.o:test.c:(.text+0x82):
undefined reference to `DAQmxCreateTask'
c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-
w64-mingw32/bin/ld.exe:
C:\Users\User\AppData\Local\Temp\ccKqDitK.o:test.c:(.text+0xae):
undefined reference to `DAQmxStopTask'
c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-
w64-mingw32/bin/ld.exe:
C:\Users\User\AppData\Local\Temp\ccKqDitK.o:test.c:(.text+0xbd):
undefined reference to `DAQmxClearTask'
collect2.exe: error: ld returned 1 exit status
[Done] exited with code=1 in 0.181 seconds**
as suggested by one of the forums i tried a command(mentioned below)specifying file path in the terminal without any error:
'PS D:\VSCODES> gcc test.c -o test -L"C:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc" -lNIDAQmx'
While debug C/C++ File, I get the following message (VSCode Terminal):
'*** Executing task: C:\MinGW\bin\gcc.exe -g test.c -o test.exe '-
LC:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc' -lNIDAQmx
c:/mingw/bin/../lib/gcc/x86_64-w64-
mingw32/11.2.0/../../../../x86_64-
w64-mingw32/bin/ld.exe: skipping incompatible C:\Program Files
(x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc/NIDAQmx.lib
when searching for -lNIDAQmx
c:/mingw/bin/../lib/gcc/x86_64-w64-
mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping
incompatible C:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc/NIDAQmx.lib
when searching for -lNIDAQmx
c:/mingw/bin/../lib/gcc/x86_64-w64-
mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping
incompatible C:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc\NIDAQmx.lib
when searching for -lNIDAQmx
c:/mingw/bin/../lib/gcc/x86_64-w64-
mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot
find -lNIDAQmx
c:/mingw/bin/../lib/gcc/x86_64-w64-
mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping
incompatible C:\Program Files (x86)\National
Instruments\Shared\ExternalCompilerSupport\C\lib32\msvc/NIDAQmx.lib
when searching for -lNIDAQmx
collect2.exe: error: ld returned 1 exit status**'
Edit the tasks,json file as follows:
{
"tasks": [
{
"type": "shell",
"label": "C/C++: gcc.exe build active file",
"command": "C:\\MinGW\\bin\\gcc.exe",
"args": [
"-g",
"test.c",
"-o",
"test.exe",
"-LC:\\Program Files (x86)\\National Instruments\\Shared\\ExternalCompilerSupport\\C\\lib64\\msvc",
"-lNIDAQmx"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
Related
I'm trying to include header files from the atmel avr folder to work with arduino. Despite trying to include the directory of the files, it still prompts me with "No such file or directory" when compyling. The files are located inside "C:\repositories\arduino_testing\include\avr"
What am I doing wrong?
main.c
#include <stdio.h>
#include "avr\io.h"
int main(){
printf("This is a C code");
return 0;
}
tasks.json
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++.exe build active file",
"command": "C:\\MinGW\\bin\\g++.exe",
"args": [
"-I C:\\repositories\\arduino_testing\\include",
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: cpp.exe build active file",
"command": "C:\\MinGW\\bin\\cpp.exe",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
c_cpp_properties
{
"configurations": [
{
"name": "Win32",
"includePath": [
//"${workspaceFolder}/**",
//"C:\\repositories\\arduino_testing\\avr",
"C:\\repositories\\arduino_testing\\include"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"windowsSdkVersion": "10.0.18362.0",
"compilerPath": "C:\\MinGW\\bin\\gcc.exe",
"cStandard": "c17",
"cppStandard": "c++17",
"intelliSenseMode": "windows-gcc-x64"
}
],
"version": 4
}
In your c_cpp_properties.json file, you need to add the path to the avr folder in the includePath array.
"includePath": [
//"${workspaceFolder}/**",
"C:\\repositories\\arduino_testing\\include\\avr"
],
#include "avr\io.h"
#include always uses forward slashes / as path separator, no matter what host system you are using.
That system header is part of the GNU tools for AVR and provided by AVR-LibC, hence:
#include <avr/io.h>
Also notice that this is a sytem header, thus enclose in < and >, not in "'s.
There is no need for -isystem <path> (or -I <path> for that matter) as far as the GNU tools are concerned. You might need to provide the headers to IDEs that need their contents to display locations of macro definitions, though.
If you can only compile with -isystem <path> (or -I <path> for that matter) your toolchain installation is broken, and you should get a working toolchain. Same if it doesn't work with -isystem (or -I): toolchain is broken.
So show the include paths, add -v to the compiler options and inspect its output:
> avr-gcc -v ...
[snip many lines]
#include "..." search starts here:
#include <...> search starts here:
$install/bin/../lib/gcc/avr/8.5.0/include
$install/bin/../lib/gcc/avr/8.5.0/include-fixed
$install/bin/../lib/gcc/avr/8.5.0/../../../../avr/include
End of search list.
...
where the last line belongs to the AVR-LibC system includes. Resolving all these ..'s, the path is $install/avr/include, and it should contain a folder avr which contains io.h etc.
On Visual Studio Code, Mac OS version 10 I am trying to compile (debug C/C++ file) a C code to connect to SQLite3 database. The compile ends with error :
ld: library not found for -lsqlite clang: error: linker command failed
with exit code 1 (use -v to see invocation)
There is an SQLite3 folder under /usr/lib/ , which includes the SQLite3 library. sqlite3.h I put directly under the same source code file sqlite3test1.c. However the compile failed with an error. I link using this command on terminal :
/usr/bin/clang -lsqlite3 -fcolor-diagnostics -fansi-escape-codes -g /Users/Training/sqlite3test1.c -o /Users/Training/sqlite3test1
The command generated an executable file, run correctly, and the executable file provided the database records on the terminal window ( Success ).
How to make the link without the command?
SQLite is included in macOS and Mac OS X by default. So I think you are asking where to add your -lsqlite3 link parameter in the VSCode right? If so, there is a hidden folder .vscode, inside is a tasks.json:
Open task.json:
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: clang build active file",
"command": "/usr/bin/clang",
"args": [
"-fcolor-diagnostics",
"-fansi-escape-codes",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: clang build active file",
"command": "/usr/bin/clang",
"args": [
"-fcolor-diagnostics",
"-fansi-escape-codes",
"-g",
"-l",
"sqlite3",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "compiler: /usr/bin/clang"
}
],
"version": "2.0.0"
}
Did you find the sqlite3 command I added? That's it.
Now if you build and run the main.c file, VSCode will compile&link successfully, and you are ready to debug.
I am very new to C programming and I just installed mingw and started using vs code. I have installed all teh extension required in the VS code and have selected the default builder as gcc in the vs code.
here is the source code I am trying to run
main.c :
#include <stdio.h>
int main(){
int age;
printf("Hello, world!\n");
printf("Whats your age?: ");
scanf("%i", &age);
printf("You are %i years old", age);
return 0;
}
here is the tasks.json which I created:
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc.exe build active file",
"command": "C:\\msys64\\mingw64\\bin\\gcc.exe",
"args": [
"-g",
"-fdiagnostics-color=always",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
}
]
}
But on building the file (ctrl+shift+B), I get the following error:
> Executing task: C/C++: gcc.exe build active file <
Starting build...
C:\msys64\mingw64\bin\gcc.exe -g -fdiagnostics-color=always C:\Users\user name\Desktop\username's folder laptop\College CS\C programming\main.c -o C:\Users\user name\Desktop\username's folder laptop\College CS\C programming\main.exe
gcc.exe: fatal error: input file 'C:\Users\user' is the same as output file
compilation terminated.
Build finished with error(s).
I have tried deleting and recreating the .c file.
It works fine when I type the following command in the cmd manually after going into that folder:
gcc main.c -o main.exe
So, the gcc works fine but for some reason when I mention the whole path, it goes haywire.
Please help me out as I couldn't find any solutions for this error and sorry of this doubt is a silly one.
I was expecting the build to be successful in VS code but it showed a fatal error even though the VS code is open in that particular folder.
I am trying to set up Visual Studio Code to function with multiple .c and header files.
I installed the C/C++, Code Rrunner and the C/C++ Makefile Project plug in.
The code works just fine when I compile only one file.
Here are the errors it gives me:
PS C:\Users\rlung\OneDrive\Documenti\VisualStudioCode> cd "c:\Users\rlung\OneDrive\Documenti\VisualStudioCode\src\" ; if ($?) { gcc ex_02.c -o ex_02 } ; if ($?) { .\ex_02 }
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0xee): undefined reference to `HTcreate'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x111): undefined reference to `HTinsert'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x152): undefined reference to `HTprintStructure'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x179): undefined reference to `HTprintStructure'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x185): undefined reference to `HTdestroy'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x1ad): undefined reference to `listCreate'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\rlung\AppData\Local\Temp\cc0P4dqJ.o:ex_02.c:(.text+0x2ae): undefined reference to `HTinsert'
collect2.exe: error: ld returned 1 exit status
PS C:\Users\rlung\OneDrive\Documenti\VisualStudioCode\src>
As you can see it says "undefined reference to..." for every function of the other files i use.
I found lots of answers to this problem and tried everything but I still can't manage to make it work.
I am on windows 10 using mingw64 and this are my .json files.
tasks.json
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc.exe build active file",
"command": "C:\\msys64\\mingw64\\bin\\gcc.exe",
"args": [
"-fdiagnostics-color=always",
"-g",
"${fileDirname}/*.c",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
}
],
"version": "2.0.0"
}
and launch.json
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "gcc.exe - Build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"miDebuggerPath": "C:\\msys64\\mingw64\\bin\\gdb.exe",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
},
{
"description": "Set Disassembly Flavor to Intel",
"text": "-gdb-set disassembly-flavor intel",
"ignoreFailures": true
}
],
"preLaunchTask": "C/C++: gcc.exe build active file"
}
]
}
I even try to indicate where my header files are in the c_cpp_properties.json.
This is what my Visual Studio Code project looks like:
I tried to change up a bit the tasks.json, in particular the "${file}" string after "-g", but nothing. I also tried compiling and linking everything by hand using: gcc ex_02.c -0 ex_02 -c //for every c file I have and then i linked them togheter using: gcc -o myprog ex_02.o //all object file created before, It works this way but I would like to use code runner and not worry about writing all this stuff everytime, how can i accomplish it?
I got a few codes from https://computing.llnl.gov/tutorials/pthreads/ and I was trying to use the VSCode debugger to try to step through them but it doesnt seem to work.
Using tasks (ctrl+shift+B) I can build it just fine (I've added the -pthread flag) but when I try to debug it (F5) I get this error:
> Executing task: C/C++: gcc build active file <
Starting build...
Build finished with error:
/usr/bin/ld: /tmp/cc5vG56K.o: in function `main':
/home/xristosp59/Documents/Programming/condvar.c:98: undefined reference to `pthread_create'
/usr/bin/ld: /home/xristosp59/Documents/Programming/condvar.c:99: undefined reference to `pthread_create'
/usr/bin/ld: /home/xristosp59/Documents/Programming/condvar.c:100: undefined reference to `pthread_create'
/usr/bin/ld: /home/xristosp59/Documents/Programming/condvar.c:104: undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status
The terminal process failed to launch (exit code: -1).
I've tried both -pthread and -lpthread flags in various places in my tasks.json but none seem to work, I always get this error.
Here is my current tasks.json: (this builds fine with tasks)
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc build active file",
"command": "/usr/bin/gcc",
"args": [
"-g",
"-pthread",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "/usr/bin"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Generated task by Debugger"
}
],
"version": "2.0.0"
}
I'm on pop_os 20.10 if that matters.
Ok so apparently vscode, when you first try to debug a c program, it creates a launch.json and tasks.json, the launch.json has a "preLaunchTask": "C/C++: gcc build active file" option and tasks.json has a "label": "C/C++: gcc build active file" option, which match, but I guess because C/C++: gcc build active file is already a task in vscode, it doesn't use the one in tasks (please correct me if I'm wrong). I changed the labels in both and now it works.