C + + Primer 6.5.2 Practice Answers

Source: Internet
Author: User

Exercise 6.43

A) put in the header file because the inline function and the constexpr function are generally written in the header file

b) The definition of the function is generally written in the source file, and the declaration is placed in the header file

Exercise 6.44

1 bool isshorter (conststringconststring &s2)2 {3     return s1.size () < s2.size (); 4 }

Exercise 6.45

Inline functions are typically used to optimize functions that are small, process-direct, and frequently called.

Exercise 6.46

No, isshorter. If the function is defined as a constexpr function, both the return value and the formal parameter must be a constant expression, and there is only one return statement, and the Isshorter function needs to compare the length of two strings, returning the Boolean type, It cannot be defined as a constexpr function.

C + + Primer 6.5.2 Practice Answers

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.