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很多就是基于c++做的底层、运行时和应用框架封装。c++11后续又有11，14，17，20等众多新版本。哪个是...
STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \ SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \ TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \ NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \ BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_...
# 1 "" # 1 "/usr/include/stdc-predef.h" 1 3 4 # 1 "" 2 # 1 "hello.c" # 1 "/usr/include/stdio.h" 1 3 4 # 27 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/features.h" 1 3 4 # 374 "/usr/include/features.h" 3 4 # 1 "/usr/include/x86_64-linux-gnu/sys/c...
# 1 "/usr/include/stdc-predef.h" 1 3 4 # 0 "" 2 # 1 "hello.c" # 1 "/usr/include/stdio.h" 1 3 4 # 27 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4 # 33 "/usr/...
Annoyed I started compiling random files with Microsoft C, and finally found the file that broke it all, it turned out to be insn-output.c needing to be compiled with the “/D__STDC__” flags. A quick modification of the Makefile and now I have a working CC1! Okay, great, it’s...
GCC主要数据结构之cpp_builtin_type,cpp_builtin_type:/*Differentflavorsofbuiltinmacro. _Pragmaisanoperator,butwe handleitwiththebuiltincodeforefficiencyreasons. */enumcpp_builtin_type{ BT_SPECLINE=0,
cc1: warning: command line option ‘-std=c++2a’ is valid for C++/ObjC++ but not for C#1"<stdin>"#1"<built-in>"#1""#31""#1"/usr/include/stdc-predef.h"1 3 4#32""2#1"<stdin>" 这种输出表明是该GCC版本是有支持C++20的(尽管...
check_gcc_stdc_version是一个用于测试编译器是否支持特定C语言标准的宏。对于GCC编译器,可以通过该宏来检测其对C99、C11和C17标准的支持情况。如果编译器支持相应的标准,该宏将返回一个非零值;否则,返回零。对于Clang编译器,通常也可以使用这个宏进行相似的测试。通过检查这些返回值,开发者可以根据编译器对不同标准...
在gcc-4.8.2和gcc-4.1.2基础上编译gcc-5.2.0,有可能会遇到一些问题。 要想成功编译gcc,则在编译之前需要安装好它的至少以下三个依赖: gmp mpfr mpc 而mpc又依赖gmp和mpfr。 1) 安装gmp ./configure --prefix=/usr/local/gmp-6.0.0 make make install 2) 安装mpfr ./configure --prefix=/usr/local/mpf...