C23 core language features This section is incomplete Reason: status for Apple Clang and other compilers supporting C2x C23 feature Paper(s) GCC Clang MSVC Apple Clang EDG eccp Intel C++ Nvidia HPC C++ (ex PGI)* Nvidia nvcc Cray [Collapse] ...
constexpr 说明符 (C23 起)C C 语言 声明 用constexpr 存储类说明符声明的标量对象属于常量。必须根据静态初始化规则进行完全且明确的初始化。它仍然有适于其声明的链接,并且在运行时存在,以获取其地址;它只是在运行时不能以任何方式进行修改,即,编译器可以在任何其他常量表达式中运用“对象具有固定值“的知识。
C23 标准(ISO/IEC 9899:2024): 6.7.2.1 Structure and union specifiers (第 TBD 页) C17 标准(ISO/IEC 9899:2018): 6.7.2.1 Structure and union specifiers (第 81-84 页) C11 标准(ISO/IEC 9899:2011): 6.7.2.1 Structure and union specifiers (第 112-117 页) ...
(C23) counts the number of consecutive1bits, starting from the least significant bit (type-generic function macro) stdc_first_leading_zero (C23) finds the first position of0bit, starting from the most significant bit (type-generic function macro) ...
Checked integer arithmetic(C23) Concurrency support library(C11) Technical specifications Dynamic memory extensions(dynamic memory TR) Floating-point extensions, Part 1(FP Ext 1 TS) Floating-point extensions, Part 4(FP Ext 4 TS) External Links−Non-ANSI/ISO Libraries−Index−Symbol Index ...
Bit manipulation(C23) Checked integer arithmetic(C23) Concurrency support library(C11) Technical specifications Dynamic memory extensions(dynamic memory TR) Floating-point extensions, Part 1(FP Ext 1 TS) Floating-point extensions, Part 4(FP Ext 4 TS) ...
C89, C95, C99, C11, C17, C23 Linguagem Conceitos básicos Palavras chaves Preprocessador Expressões Declaração Inicialização Funções Instruções Headers Suporte de tipo Utilitários de programas Funções variádicas
C23 最新免费工作草案是n2731(2021-10-18) C17 官方C17 标准能从 ISO 购买。 最终草案标准C17 FDIS可免费使用 C11 C11 标准已经撤销并且不再能从 ISO 获得,尽管仍然可从从 ANSI 购买。 C11 工作草案为n1570 (2011-04-12),可以免费获取,内容与正式 C11 标准仅有微小的差异。
C 属性: deprecated (C23 起) 编辑 指示声明有此属性的名字或实体被弃用,即允许但因故不鼓励使用。 语法 [[ deprecated ]][[ __deprecated__ ]] (1) [[ deprecated ( 字符串字面量 ) ]][[ __deprecated__ ( 字符串字面量 ) ]] (2) 字符串字面量 - 能用于解释弃用的理由并/或提议代替用...
属性(C23 起)可在 说明符与限定符 中出现,该情况下它们应用到前导的说明符所确定的类型。 声明符 每个声明符是下列之一: 标识符 属性说明符序列(可选) (1) ( 声明符 ) (2) * 属性说明符序列(可选) 限定符(可选) 声明符 (3) 无指针声明符 [ static(可选) 限定符(可选) 表达式 ] 无指针声...