https://tonybai.com/tags/bjarne-stroustrup/Recent content in Bjarne-Stroustrup on Tony BaiHugozh-cn2004-2026 Tony Bai. 版权所有.Tue, 22 May 2007 00:00:00 +0800https://tonybai.com/2007/05/22/cpp-weigh-every-word-series-pointer-trick/Tue, 22 May 2007 00:00:00 +0800https://tonybai.com/2007/05/22/cpp-weigh-every-word-series-pointer-trick/晚上饭后抽空看了看如何实现一个内存管理器，涉及内存操作必定少不了指针，恰研究到offsetof这个operator，也看了它的实现，顿有所悟。 先看一段代码： struct Foo {         int     a;         char\*   p;         char    b; }; Foo\* p1 = reinterpret\_cast(0); Foo\* p2 = 0;...https://tonybai.com/2007/03/13/cpp-weigh-every-word-series-functions/Tue, 13 Mar 2007 00:00:00 +0800https://tonybai.com/2007/03/13/cpp-weigh-every-word-series-functions/关于Functions，Bjarne Stroustrup在'The C++ Programming Language'一书中是这么开篇的：'The typical way of getting something done in a C++ program is to call a function to do it.'；另外他还阐述了一个使用Functions的原则：'A function c...https://tonybai.com/2007/03/12/cpp-weigh-every-word-series-evil-cast/Mon, 12 Mar 2007 00:00:00 +0800https://tonybai.com/2007/03/12/cpp-weigh-every-word-series-evil-cast/Cast也被称为"Explicit Type Conversion"，即显式类型转换，在传统C中强制转型(cast)只有一种语法形式(T)e。Bjarne Stroustrup在'The Design and Evolution of C++'(以后称作D&E)一书的14.3小节开始就说了'无论是从语法还是从语义上, Cast都是C++里最难看的特征之一'，所以他要为cast提供A New Cas...https://tonybai.com/2007/03/10/cpp-weigh-every-word-series-0-or-null/Sat, 10 Mar 2007 00:00:00 +0800https://tonybai.com/2007/03/10/cpp-weigh-every-word-series-0-or-null/C程序员和C++程序员在声明空指针时做法常常是不相同的。 C程序员常常如下做： int \*ptr = NULL; C++程序员则是听从Bjarne Stroustrup或者其他C++大师的教诲，坚定地如下做： int \*ptr = 0; 也许没有谁对谁错之分，也许只是习惯不同罢了，毕竟C语言是老大哥，诞生的早；而在早期C编程时人们也许不习惯在程序里使用0这样的magic number，转而使用...https://tonybai.com/2007/03/09/cpp-weigh-every-word-series-hijack-const/Fri, 09 Mar 2007 00:00:00 +0800https://tonybai.com/2007/03/09/cpp-weigh-every-word-series-hijack-const/晚上无意翻看Bjarne Stroustrup的'The C++ Programming Language Special Edition'(英文版)第94页，章节5.4 Constants一节，看到这么一句原文'C++ offers the concept of a user-defined constant, a const, to express the notion that a valu...