Use Explicit Template Argument to Solve Template Argument Deduction

Use Explicit Template Argument to Solve Template Argument Deduction

The statement below will cause ambiguity because it is violating a rule for template argument deduction. That rule is: if a template parameter is used more than once in the function parameter list, then each deduced type for its template argument must match the first deduced type.

template 	void func (type t1, type t2);		func(4, 5.6);

As you can see, the code is deducing two different types of the template argument for the template parameter ‘type’. You can resolve this situation by using Explicit Template Argument:

	func(4, 5.6)

Now the template argument for “type” is explicitly specified to “int”. Thus the type of template parameter is fixed and does not depend on implicit template argument deduction anymore.

See also  Professionalism Starts in Your Inbox: Keys to Presenting Your Best Self in Email

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist