Home > Error C2664 > Error C2664 Conversion Requires Reinterpret_cast C-style Cast Or Function-style Cast

Error C2664 Conversion Requires Reinterpret_cast C-style Cast Or Function-style Cast


FindFirstFileA instead of FindFirstFile. A better bet would be to just be compatible with _UNICODE as there are some places where you need Windows' native UTF16 paths and can't use the ASCII variants. User Tag List Results 1 to 2 of 2 Thread: Strange InputComponent Error View First Dev Post Thread Tools Show Printable Version Subscribe to this Thread… Search Thread Advanced Search But when I compiled it, I got the following errors: 1>Compiling...1>main.cpp1>.\main.cpp(55) : error C2664: 'CertOpenSystemStoreW' : cannot convert parameter 2 from 'char [256]' to 'LPCWSTR'1>        Types pointed to are unrelated; conversion http://megavoid.net/error-c2664/error-c2664-conversion-loses-qualifiers.html

Or use TCHAR and TEXT macros for all strings. Powered by vBulletin Version 4.2.2 Copyright © 2016 vBulletin Solutions, Inc. up vote 9 down vote It is implementation defined in a sense that standard doesn't (almost) prescribe how different types values should look like on a bit level, how address space JodiTheTigger commented Apr 23, 2016 For unicode support, may I suggest using *W versions of the api, then using WideCharToMultiByte with CP_UTF8 to convert to UTF-8?

Error C2664 Conversion Requires Reinterpret_cast C-style Cast Or Function-style Cast

I got around it in the first four chapters by trying different compilers, but now that I'm getting into Direct3D, I'm going to have to resort to Visual C++. Hope this helps. Action delegate functions must have a void return type and no parameters. To start viewing messages, select the forum that you want to visit from the selection below.

In this case change: fprintf <->_ftprintf Or use WCHAR and L- prefix for all string. if(!(pCertContext = CryptUIDlgSelectCertificateFromStore(  hCertStore,  NULL,  NULL,  NULL,  CRYPTUI_SELECT_LOCATION_COLUMN,  0,  NULL))){    MyHandleError("Select UI failed." );} //-------------------------------------------------------------------// Clean up. Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. (LogOut/Change) You are But a C-style cast, as in (int)42.0, is much harder to find by searching) To answer the other part of your question, yes, reinterpret_cast is implementation-defined.

You signed in with another tab or window. How do I input n repetitions of a digit in bash, interactively Identifying a Star Trek TNG episode by text passage occuring in Carbon Based Lifeforms song "Neurotransmitter" Allow multiple GUI this is the source code: #include #include #include #include #pragma comment (lib, "crypt32.lib")#pragma comment (lib, "cryptui.lib") #define MY_ENCODING_TYPE  (PKCS_7_ASN_ENCODING | X509_ASN_ENCODING)void MyHandleError(char *s); void main(void){ //-------------------------------------------------------------------// Copyright (c) Microsoft Corporation.  Visit our UserVoice Page to submit and vote on ideas!

It just seemed convenient to go here, and I figured someone might recognize what was wrong. 1
1 1>Compiling... 1>nehelesson2.cpp 1>c:\users\noahpocalypse\documents\visual studio 2008\projects\prototype\prototype\nehelesson2.cpp(87) : error C2664: 'MessageBoxW' : cannot convert parameter Get a copy of the standard here: stackoverflow.com/questions/81656/… –Loki Astari Oct 20 '11 at 8:38 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign I've generated errors when trying to compile the programs in the book. In both of these cases you should use the explicit reinterpret_cast operator rather than the C-Style.

Yeah, Windows is lame for not just being UTF8 everywhere, but it is what it is. http://www.cplusplus.com/forum/windows/53565/ This is an example of the errors I generated when running the program in Chapter 5:1>------ Build started: Project: d3d_windowed, Configuration: Debug Win32 ------1>Compiling...1>winmain.cpp1>c:\documents and settings\owner\my documents\visual studio 2008\projects\d3d_windowed\d3d_windowed\winmain.cpp(56) : error Error C2664 Conversion Requires Reinterpret_cast C-style Cast Or Function-style Cast Though, in my defense it does appear that the compiler is trying to tell me I need to cast to convert from one item to another of the exact same type. All Rights Reserved.

We recommend upgrading to the latest Safari, Google Chrome, or Firefox. http://megavoid.net/error-c2664/error-c2664-int.html Pointer to base class may differ from pointer to the derived class in these cases (depending on implementation of compiler, since this is not defined in standard)! Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies The C-style cast is somewhat similar in a sense that it can perform reinterpret_cast, but it also "tries" static_cast first and it can cast away cv qualification (while static_cast and reinterpret_cast

So yes, if you rely on the intermediate value, your code is non-portable. It might just corrupt your stack and cause a crash in an unrelated function. If you pass void* as type-id to dynamic_cast, a run-time check is made to determine the actual type of expression. http://megavoid.net/error-c2664/error-c2664-function-pointer.html The first is to use opaque pointer types, either for a library API or just to store a variety of pointers in a single array (obviously along with their type).

int main(void) { hash_state md; unsigned char *in = "hello world", out[16]; /* setup the hash */ md5_init(&md); /* add the message */ md5_process(&md, in, strlen(in)); /* get the hash in Next time you need to cast a pointer, stop for a moment and think - is it necessary (if so, why), is it correct? The problem is that char and unsigned char are different types.

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Most probably, you would get a crash when the string's destructor is called, but who knows! Epic, Epic Games, Unreal, Unreal Engine, UE4, and their logos are trademarks or registered trademarks of Epic Games, Inc. The conversion from char* to unsigned char* is safe because all objects can be treated as an array of char, unsigned char, or signed char in C++. This is used a lot when doing binary protocols where data structures often have the same header information and allows you to convert types which have the same layout, but differ

C++ has completely different needs on type-casting than C. Examples cat dog --matches anything with cat,dog or both cat +dog --searches for cat +dog where dog is a mandatory term cat -dog -- searches for cat excluding any result containing The result is the same in this case, but might prevent you from accidentally casting to the wrong type. –edA-qa mort-ora-y Oct 20 '11 at 9:05 @edA-qamort-ora-y: Yes it http://megavoid.net/error-c2664/error-c2664.html If you use reinterpret_cast, it is easy to find the places where you did it.

Or use TCHAR and TEXT macros for all strings. Sunday, November 26, 2006 9:13 PM Reply | Quote Microsoft is conducting an online survey to understand your opinion of the Msdn Web site. About the last line- this is what I've tried with :-) –java Jul 21 '15 at 12:17 By the way, I don't know about the environment you code in, more ▼ 2 total comments 96 characters / 17 words answered Aug 14 '14 at 07:55 PM Jamie Dale ♦ STAFF 5.5k ● 157 ● 45 ● 228 Apieron Aug 14

An easy example of how it could go wrong: std::string a; double* b; b = reinterpret_cast(&a); *b = 3.4; That program's behaviour is undefined - a compiler could do anything it reinterpret_cast - used for simple reinterpretation of bits. Navigation [0] Message Index [*] Previous page Go to full version B *b2 = (B*)(&c); cout << "reinterpret_cast:\t" << b1 << "\n"; cout << "C-style cast:\t\t" << b2 << "\n"; cout << "no cast:\t\t" << &c << "\n"; } and here is

Why can't alcohols form hydrogen-bonded dimers like carboxylic acids? Is there a word in Esperanto for "lightsaber"? reinterpret_cast The reinterpret_cast operator allows any pointer to be converted into any other pointer type. Terms of Use | Privacy Policy Powered by AnswerHub What's New?

fprintf(stderr,"Please enter the store name:");fgets(pszStoreName, 256, stdin);fprintf(stderr,"The store name is %s .\n",pszStoreName); //-------------------------------------------------------------------// Open a system certificate store. User Alert System provided by Advanced User Tagging v3.2.5 Patch Level 1 (Lite) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.Ⓒ 2004-2016, EPIC GAMES, INC. What is the difference between SAN and SNI SSL certificates? So if you know what you do and how it all looks like on a low-level nothing can go wrong.

Install Setup not working When stating a theorem in textbook, use the word "For all" or "Let"? Viewable by all users 1 answer: sort voted first ▼ oldest newest voted first 0 Did the syntax parsing of AnswerHub eat the *, or is that not returning a const Looking at it I'm thinking it must be AMyCharacter::PickUp(AItem* Item) or something like that. If you want to be ASCII-only then you must explicitly call the *A versions of functions, e.g.

Cast operator for all the "other valid" casts - casts inside of class hierarchy of non-polymorphic types. Function Signature: const FSlateBrush GetItemSlateBrush() const; Did I miss something here?