Issue compiling custom MM plugin for x64 CSS

[ClaudiuHKS]

hl2sdk/public/tier1/utlsymbol.h

Line 48 in 94b660e

bool operator==( CUtlSymbol const& src ) const { return m_Id == src.m_Id; }

1>K:\hl2sdk-css\public\tier1\utlsymbol.h(108,14): error C2666: 'CUtlSymbol::operator ==': overloaded functions have similar conversions
1>(compiling source file 'hgsm.cpp')
1>    K:\hl2sdk-css\public\tier1\utlsymbol.h(48,7):
1>    could be 'bool CUtlSymbol::operator ==(const CUtlSymbol &) const' [rewritten expression '!(x == y)']
1>    K:\hl2sdk-css\public\tier1\utlsymbol.h(108,14):
1>    or       'built-in C++ operator!=(UtlSymId_t, UtlSymId_t)'
1>    K:\hl2sdk-css\public\tier1\utlsymbol.h(108,14):
1>    while trying to match the argument list '(CUtlSymbol, UtlSymId_t)'

Line 48 needs to be commented out, otherwise it comes in conflict with:

	inline bool HasElement( const char* pStr ) const
	{
		return Find( pStr ) != UTL_INVAL_SYMBOL;
	}

[psychonic]

Can you show your compiler arguments? This error is known to occur with opting into C++23, which Valve's SDK does not currently support.