std.random.uniform(1, 101) crashes. Why, and workaround.

[Brother Bill]

On Friday, 25 July 2025 at 07:16:55 UTC, evilrat wrote:
> On Friday, 25 July 2025 at 01:04:31 UTC, Brother Bill wrote:
>> From "Programming in D" book:
>>
>> import std.stdio;
>> import std.random;
>>
>>     void main() {
>>     	int number = uniform(1, 101);
>>
>>     	writeln("Edit source/app.d to start your project.");
>>     }
>>
>>     Running it generates:
>>     phobos64.lib(random_6ea_855.obj) : error LNK2019: 
>> unresolved external symbol BCryptGenRandom referenced in 
>> function _D3std6random__T15bcryptGenRandomTmZQuFNbNiNeJmZb
>>     
>> C:\Users\broth\AppData\Local\Temp\.rdmd\rdmd-app.d-99D1A2446E2CA5089AD8A9B31EA74F07\app.exe.tmp : fatal error LNK1120: 1 unresolved externals
>>     Error: linker exited with status 1120
>>            C:\Program Files\Microsoft Visual 
>> Studio\2022\Community\VC\Tools\MSVC\14.44.35207\bin\HostX64\x64\link.exe /NOLOGO "C:\Users\broth\AppData\Local\Temp\.rdmd\rdmd-app.d-99D1A2446E2CA5089AD8A9B31EA74F07\objs\app.exe.obj" /OUT:"C:\Users\broth\AppData\Local\Temp\.rdmd\rdmd-app.d-99D1A2446E2CA5089AD8A9B31EA74F07\app.exe.tmp"  /DEFAULTLIB:phobos64  /LIBPATH:"C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\lib\x64" legacy_stdio_definitions.lib /LIBPATH:"C:\Program Files (x86)\Windows Kits\10\Lib\10.0.26100.0\ucrt\x64" /LIBPATH:"C:\Program Files (x86)\Windows Kits\10\lib\10.0.26100.0\um\x64"
>>     Error: undefined reference to `BCryptGenRandom`
>>            referenced from `nothrow @nogc @trusted bool 
>> std.random.bcryptGenRandom!(ulong).bcryptGenRandom(out ulong)`
>>            perhaps a library needs to be added with the `-L` 
>> flag or `pragma(lib, ...)`
>>
>>      *  The terminal process 
>> "C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe 
>> -Command & 'rdmd' 'c:\dev\D\21 - 
>> 30\c27_a_do_while_loop\source\app.d'" terminated with exit 
>> code: 1.
>>
>> Is there another way to get a random integer between 1 and 100?
>
> could be this:
> Windows link error with std.random.uniform() in v2.111 #10731
> https://github.com/dlang/phobos/issues/10731

Regarding https://github.com/dlang/phobos/issues/10731
DMD Version v2.111.1 will fix this, but hasn't been published yet.