Error C2664 Cannot Convert Parameter
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Error C2664 Cannot Convert Parameter From Const Char To Lpcwstr
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Cannot Convert Parameter 1 From Int
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Error C2664 C++
'int' to 'int []' up vote 0 down vote favorite #include
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers error c2664 in visual c++ or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x error c2664 cannot convert parameter 1 from 'const char *' to 'char *' Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it error c2664 visual studio only takes a minute: Sign up error C2664: cannot convert parameter 1 from 'int' to 'int (__cdecl *)(int)' up vote 1 down vote favorite 2 having some trouble passing a function as a parameter of another function... ERROR: Error http://stackoverflow.com/questions/22150353/error-c2664-cannot-convert-parameter-1-from-int-to-int 1 error C2664: 'wrapper' : cannot convert parameter 1 from 'int' to 'int (__cdecl *)(int)' int inc( int n ) { return n + 1 ; } int dec( int n ) { return n - 1 ; } int wrapper( int i, int func(int) ) { return func( i ) ; } int main(){ int a = 0 ; a = wrapper( 3, inc( 3 ) ) ; return 0 ; } c++ function parameters c2664 share|improve this question http://stackoverflow.com/questions/6332078/error-c2664-cannot-convert-parameter-1-from-int-to-int-cdecl-int edited Jun 22 '11 at 18:07 user195488 asked Jun 13 '11 at 14:52 tuk 4718 add a comment| 5 Answers 5 active oldest votes up vote 5 down vote accepted You're passing the result of a function call inc(3) to wrapper, NOT a function pointer as it expects. a = wrapper(3, &inc) ; share|improve this answer answered Jun 13 '11 at 14:54 Mark B 76.4k465138 add a comment| up vote 1 down vote Your call is passing an integer, the return value from calling inc(3), i.e. 4. That is not a function pointer. Perhaps you meant: a = wrapper(3, inc); This would work, and assign a to the value of calling int with the parameter 3. share|improve this answer answered Jun 13 '11 at 14:54 unwind 254k38331460 add a comment| up vote 1 down vote The line: a = wrapper( 3, inc( 3 ) ) ; is effectively: a = wrapper(3, 4); I think you mean: a = wrapper(3, inc); This passes a pointer to the inc() function as the second argument to wrapper(). share|improve this answer answered Jun 13 '11 at 14:55 janm 12.6k12646 add a comment| up vote 1 down vote As it is now, wrapper takes an int and a pointer to a function that takes one int and returns an int. You are trying to pass it an int and an int, because instead of passing the a pointer to the function, you're calling
Verbs Diet Index 2010-03-28 Error C2664 https://www.daniweb.com/programming/software-development/threads/210365/error-c2664-createfilew-cannot-convert-parameter-1-from-const-char-5-to-lpcwstr LoadLibraryW cannot convert parameter to LPCWSTR I recently used Microsoft Visual Studio 2008 to write a simple program to load a dynamic link library error c2664 (DLL) module and invoke some of its entry points. I did not expect to get the error message C2664 from the simple LoadLibrary statement:HINSTANCE hinstLib = LoadLibrary("azspellaid.dll"); Error C2664: 'LoadLibraryW': cannot convert parameter cannot convert parameter 1 from 'const char [15]' to 'LPCWSTR' There are two ways of fixing this problem. The first one is to cast the quoted string with a Long Pointer to Const Wide String (LPCWSTR):HINSTANCE hinstLib = LoadLibrary((LPCWSTR)L"azspellaid.dll"); The C2664 error can also be resolved by keeping the original code and changing the character set of the project defaults from "unicode character set" to "multi-byte character set" as shown in this image: © Copyright2012 - Antonio Zamora
7 Years Ago Hello, I am doing simple read/write program for serial port. I am faceing a error that i donĀ“t understand. Error is: "error C2664: 'CreateFileW' : cannot convert parameter 1 from 'const char [5]' to 'LPCWSTR' " My whole program: #include