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How to call C functions from D
Mohe Ud Din SheikhOverview
The D programming language is compatible with the C language. This allows the programmer to use both languages simultaneously. In this answer, we'll learn to use the C program function from the D language.
Syntax
extern (C){
// call the C program file function
}Syntax
In D, we use extern(C) to add access to C language program file to utilize its functionality from the D program file.
Example
//declare the c++ function in d
extern (C){
int display();
}
void main()
{
//calling the c program function and passing value in the parameter
display();
}Explanation
In the main.d file:
- Line 2: We use
extern(C)to get access to theCprogram file functionalities. - Line 3: We declare a
displayfunction from theCprogram file.
In the display.d file:
- Lines 3–8: We declare a
displayfunction in which we add a message"C function got executed". When we execute the program, it will reflect this message in the output.
RELATED TAGS
c
dlang
CONTRIBUTOR
Mohe Ud Din SheikhCopyright ©2022 Educative, Inc. All rights reserved
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