teger value 0 when it is used in an #if statement, indicating that the C++ l- anguage is not a proper superset of C, and that the compiler does not confor- m to C. In C, __STDC__ has the integer value 1. */ #ifdefined (__STDC__) && __STDC__ constTCHAR* name; #else ...
我相信最好让整个项目统一到一个标准上。这可以通过将 CMAKE_CXX_STANDARD 变量设置为以下值之一来实现:98、11、14、17、20 或23(自 CMake 3.20 起)。这将作为所有随后定义的目标的默认值(所以最好在根列表文件的顶部附近设置它)。如果需要,你可以按每个目标单独覆盖它,像这样: 代码语言:javascript 代码运行次...
cmake_minimum_required(VERSION 2.6) project(decode_encode) set(CMAKE_CXX_STANDARD 11) set(CMAKE_CXX_FLAGS "-D__STDC_CONSTANT_MACROS") add_executable(decode_encode main.cpp) 我很可能需要指定其他链接标志,但是有没有更好的方法来处理 CMakeLists.txt 文件中的链接部分? 原文由 pp492 发布,翻译...
# 1 "/usr/include/stdc-predef.h" 1 3 4 ...//此处省略一堆东西 int main() { printf("Hello, world!\n"); int num = 1; printf("%d", num); return 0; }如果回到.c文件中,我们查看stdio这个头文件,可以发现其中的内容和hello.i文件前面的内容是一样的,无非是头文件的宏直接变成了头文件所...
//cFlags "-D__STDC_FORMAT_MACROS" // Sets optional flags for the C++ compiler. cppFlags "-fexceptions", "-frtti" //仅生成单个平台 //abiFilters "armeabi-v7a"//,"arm64-v8a" //"x86", "x86_64" } } //生成多个平台共享库 ndk{ abiFilters "armeabi-v7a","arm64-v8a" //"x86", "...
#include <stdio.h> int main(int argc, const char** argv) { for (int i = 0; i < argc; i += 1) { printf('%s\n', argv[i]); } #ifdef __STDC_VERSION__ printf('%ld\n', __STDC_VERSION__); #endif return 0; } CMakelists.txt cmake_minimum_required(VERSION 3.15) project...
cppFlags "-D__STDC_FORMAT_MACROS" } } } buildTypes {...} productFlavors { ... demo { ... externalNativeBuild { cmake { ... // Specifies which native libraries to build and package for this // product flavor. If you don't configure this property, Gradle ...
cppFlags "-D__STDC_FORMAT_MACROS" } } } buildTypes {...} productFlavors { ... demo { ... externalNativeBuild { cmake { ... // Specifies which native libraries to build and package for this // product flavor. If you don't configure this property, Gradle ...
1 "" 1 "/usr/include/stdc-predef.h" 1 3 4 / / / ... removed for brevity ... / / / 252 "/usr/include/x86_64-linux- gnu/c++/9/bits/c++config.h" 3 namespace std { typedef long unsigned int size_t; typedef long int ptrdiff_t; typedef decltype(nullptr) nullptr_t; } ......
执行llvm-config --cxxflags,可以得到-I/usr/local/Cellar/llvm/11.0.0/include -std=c++14 -stdlib=libc++ -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS。 这是编译llvm 10.0提供的库,所需的编译参数。 它说明llvm 10.0的头文件目录是/usr/local/Cellar/llvm/11.0.0/include...