const DWORD new_size = GetEnvironmentVariable("HOME",buff,var_size); if (new_size==0 || new_size>var_size) { /* *Sigh* */ } else { /* great, we're done */ } } else { /* in one go! */ } 这不像使用 getenv 并仅检查空指针那么好(对我来说)。我也不想动态分配内存,因为...
If the buffer pointed to by lpBuffer is not large enough, the return value is the buffer size, in characters, required to hold the value string and its terminating null character. EX1 // usage:// show_environment_str path;// show_environment_str temp;intGetEnvironmentVariable_ex1(string st...
C / ANSI-C Development Environment Get environment variable: how to use getenv #include <stdio.h> #include <stdlib.h> int main () { char *p; p = getenv ( "PATH" ); if (p != NULL) printf ("Current path is: %s", p); return 0; } ...
} 用法: wchar_t buffer[256]; wchar_t pwcDevNameBuf = NULL; DWORD code = My_Get_Environment_Variable(L"TEMP", buffer, 256); DbgPrint("buffer--- %S\n", buffer); 本文由职坐标整理并发布,希望对同学们有所帮助。了解更多详情请关注职坐标编程语言C/C+频道!c语言程序设计...
SYSTEMDRIVE {系统根目录 - C:} HOMEDRIVE {当户根目录 - C:} USERPROFILE {当户目录 - C:Documents and Settingswy} HOMEPATH {当户路径 - Documents and Settingswy} TMP {当户临时文夹 - C:DOCUME~1wyLOCALS~1Temp} TEMP {当户临时文夹 - C:DOCUME~1wyLOCALS~1Temp} ...
How toset and get an environment variable in C onLinux? You can use thesetenvandgetenvPOSIXAPIs to set and get environment variables. To add or change environment variable: #include<stdlib.h>intsetenv(constchar*envname,constchar*envval,intoverwrite); ...
ProgramData=C:\ProgramData ProgramFiles=C:\Program Files PSModulePath=C:\Windows\system32\WindowsPowerShell\v1.0\Modules\ PUBLIC=C:\Users\Public SystemDrive=C: SystemRoot=C:\Windows TEMP=C:\Windows\TEMP TMP=C:\Windows\TEMP USERDOMAIN=...
return torch._C._cuda_getDeviceCount() > 0 according the error message show, this is an unknown CUDA error, maybe it is caused by wrong configuration. It's very weird! of course I install the GPU driver and configure the CUDA, even have trained many AI models. It is not make sense...
`GetFirmwareEnvironmentVariableA` 是一个 Windows API 函数,用于从固件环境中获取变量值。以下是使用 `GetFirmwareEnvironmentVariableA` 函数的一个简单示例: ```c++ #include <windows.h> #include <iostream> int main() { char buffer[32]; DWORD dwSize = sizeof(buffer); if (GetFirmwareEnvironmentVariab...
Description If you have nested environment variables, update it after starting the .Net app and then the app requests the updatet variables it gets a wrong set of variables. Example: You have the user variable OraHome=C:\OrHome and your ...