them in our projects?The include directive ● Include directive: “Tells the preprocessor to include the contents of a specified file at the point where the directive appears.” #include error generated. Around ~350k lines after the include is replaced by the contentsThe include directive - cont’d When invoking the compiler, it needs to be able to resolve the location of #included ○ Typically handled by build system / package manager hello_world.cpp hello_world.oThe include directive - cont’d clang++ -std=c++20 -o hello_world.cpp.o -c hello_world.cpp hello_world.cpp:1:10: fatal

assertion in a program should not alter the correctness of that program The Contracts Prime Directive130 Copyright (c) Timur Doumler | @timur_audio | https://timur.audio • The presence Adding a contract assertion that is not checked can't cause runtime overhead The Contracts Prime Directive131 Copyright (c) Timur Doumler | @timur_audio | https://timur.audio • The presence contract assertion, or a subsequent check of the same contract assertion The Contracts Prime Directive132 Copyright (c) Timur Doumler | @timur_audio | https://timur.audio • The presence

Application or tornado.template.Loader constructors, for a template file with the {% autoescape None %} directive, or for a single expression by replacing {{ ... }} with {% raw ...%}. Additionally, in each of these only available in templates invoked via {% module Template(...) %}. Unlike the {% include ... %} directive, template modules have a distinct namespace from their containing template - they can only see the through. Defaults to "xhtml_escape". Can be changed on a per-template basis with the {% autoescape %} directive. • compiled_template_cache: Default is True; if False templates will be recompiled on every re-

false positive May be bad rule for tools Hard Easy MISRA tools, CG Meta Hard Hard Neither, META directive; Code guidelines Obvious rules, but hard to verify Might not be a good rule anyway Need a new [[intention::] [[intention::] attribute Stage 2: collate • Category • Mandatory: 8 • Required: 12 • Advisory: 12 • Directive: 5 • Decidable by humans • Easy: 27 • Medium: 1 • Complex: 20 • Unknown yet: 9 • Decidable via automated It is not visible in code and is not visible for code analysis tools Too high level for C++CG? Directive for tools/MISRA Agenda 1. Current status of C++ safety: MISRA and C++ CG 2. Parallel Safety rules

Test Macros   Immediate Functions – consteval  constinit  Class Enums and using Directive  Text Formatting  Math Constants  std::source_location  [[nodiscard(reason)]]  Bit Operations Forces constant initialization  ✔ E.g.: constinit const char* a { ... };74 Class Enums and using Directive  Example: enum class CardTypeSuit { Clubs, Diamonds, Hearts, Spades }; std::string_view GetString(const  Feature Test Macros  Immediate Functions – consteval  constinit  Class Enums and using Directive  Text Formatting  Math Constants  std::source_location  [[nodiscard(reason)]]  Bit Operations

Application or tornado.template.Loader constructors, for a template file with the {% autoescape None %} directive, or for a single expression by replacing {{ ... }} with {% raw ...%}. Additionally, in each of these only available in templates invoked via {% module Template(...) %}. Unlike the {% include ... %} directive, template modules have a distinct namespace from their containing template - they can only see the through. Defaults to "xhtml_escape". Can be changed on a per-template basis with the {% autoescape %} directive. compiled_template_cache: Default is True; if False templates will be recompiled on every request

uint32_t value = 0; value |= 0x1; value &= ~(0x1);Break from your #defined habits Preprocessor directive #de�ne is incredibly dangerous …But it’s also not unusual to come across macros and constants via REPLACE_BITS(x, mask, bits) ((x & (~(mask))) | (bits &Break from your #defined habits Preprocessor directive #de�ne is incredibly dangerous …But it’s also not unusual to come across macros and constants via

(roughly) as • A source file, • Plus with all the headers and source files included via the #include directive, • Minus any source lines skipped by conditional inclusion preprocessing directives (#ifdef), directives are executed, and macro invocations are expanded • each file included by an #include directive is processed by Phases 1 through 4, recursively • all preprocessing directives are removedCopyright

at line 11 designates that this is the portion of the code that was built by NVIDIA. The pragma directive states we want to use a specific portion of shader code prebuilt for us and allows us to write method as well. Finally, we get to the method it should have the name surf because of the pragma directive. We have two parameters for the method, Input and inout or what we want to output. We don’t need

datetime objects, and therefore always available). When used with the strptime() method, the %f directive accepts from one to six digits and zero pads on the right. 2.6 新版功能. (5) 对于简单型对象，%z and %Z 格式代码会被替换为空字符串。 includes hard tabs, the only way the doctest can pass is if the NORMALIZE_WHITESPACE option or directive is in effect. Alternatively, the test can be rewritten to capture the output and compare it to an example’s source code: directive ::= "#" "doctest:" directive_options directive_options ::= directive_option ("," directive_option)\* directive_option ::= on_or_off directive_option_name on_or_off ::=