if (::PathFileExists(FILENAME)) cout<<"exist"; return 0; } 注意windows.h 一定要在shlwapi.h前面定义 5. 使用boost的filesystem类库的exists函数: #include <boost/filesystem/operations.hpp> #include <boost/filesystem/path.hpp> #include <boost/filesystem/convenience.hpp> int GetFilePath(std::st...
/* ACCESS.C: This example uses _access to check the * file named "ACCESS.C" to see if it exists and if * writing is allowed. */ #include <io.h> #include <stdio.h> #include <stdlib.h> void main( void ) { /* Check for existence */ if( (_access( "ACCESS.C", 0 )) !=...
include(CheckIPOSupported) check_ipo_supported(RESULT ipo_supported) if(ipo_supported) set(CMAKE_INTERPROCEDURAL_OPTIMIZATION True) endif() 正如你所见,我们不得不包含一个内置模块来获取check_ipo_supported()命令的访问权限。 检查支持的编译器功能 如我们之前讨论的,如果我们的构建失败,最好是早点失败,这样...
这是通过为hello-world_wDSO目标设置RPATH相关属性来实现的,以便查找相对于可执行文件本身位置的路径,无论是通过$ORIGIN(在 GNU/Linux 上)还是@loader_path(在 macOS 上)变量: 代码语言:javascript 复制 # Prepare RPATH file(RELATIVE_PATH _rel ${CMAKE_INSTALL_PREFIX}/${INSTALL_BINDIR} ${CMAKE_INSTALL_...
日志是应用的镜子,可以发现应用中的问题,重要性不言而喻。 打造一智能日志模块,让运维朝着自动化方向大步迈进。提高效率,降低成本,这也是一种创造利润的途径。 如今网络越来越方便,这个日志组件除了常规的记录日志外,可以对日志分等级显示不同的颜色,支持按日期切割,支持控制文件大小及定时清理若干天的记录文件。更重...
However the only way to check which branch are using is to check.gitmodulesfile, here is the example forgcc, it's using releases/gcc-12 branch, so it will has a section namedgccand has a fieldbranchisreleases/gcc-12. [submodule "gcc"] path = gcc url = ../gcc.git branch = releas...
Theaccess()function allows you to determine if a file can be read, written to, or executed, based on the specified mode. What’s more, it also has a mode that can check if a file exists. Syntax: intaccess(constchar*path,intmode); ...
exportLD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH 这样做之后,依赖cuda的可执行文件就能够正常运行了。 总结 写这篇文章是因为从我第一次使用cmake以来,经常因为动态链接的问题而耽误很长时间。清楚理解find_package的运行机制在Linux的C++开发中是非常重要的,而相关的资料网上又比较稀少。其实官网上...
Check if a maven artifact exists. Designed around the use case of skipping deployment if the stable version already exists. How This Plugin Determines if Builds are the "Same" There are two strategies to determine if a maven artifacts are the "same" as what the project just built: version ...
INCLUDE (CheckSymbolExists) # System type affects version_compile_os variable IF(NOT SYSTEM_TYPE) IF(PLATFORM) SET(SYSTEM_TYPE ${PLATFORM}) ELSE() SET(SYSTEM_TYPE ${CMAKE_SYSTEM_NAME}) ENDIF() ENDIF() # Same for structs, setting HAVE_STRUCT_<name> instead FUNCTION(MY_CH...