How to achieve function overloading in C?

Question

Is there any way to achieve function overloading in C? I am looking at simple functions to be overloaded like

foo (int a)  
foo (char b)  
foo (float c , i         


        

Answer 1

This may not help at all, but if you're using clang you can use the overloadable attribute - This works even when compiling as C

http://clang.llvm.org/docs/AttributeReference.html#overloadable

Header

extern void DecodeImageNow(CGImageRef image, CGContextRef usingContext) __attribute__((overloadable));
extern void DecodeImageNow(CGImageRef image) __attribute__((overloadable));

Implementation

void __attribute__((overloadable)) DecodeImageNow(CGImageRef image, CGContextRef usingContext { ... }
void __attribute__((overloadable)) DecodeImageNow(CGImageRef image) { ... }