Error C2664 Vc
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Error C2664 Cannot Convert Parameter 1 From
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Error C2664 In C++
each other. Join them; it only takes a minute: Sign up Incomprehensible VC++6 compile error C2664 up vote 0 down vote favorite I can't figure out how to fix a compile error C2664, which has driven me crazy all
Error C2664 Lpcwstr
night! The error arises from a call to qsort(). I want to sort an array of ID2IX stored in the array pointed by radioIDs: typedef struct id2ix { // struct maps radio id to array index int id; // radio id int ix; } ID2IX; ID2IX *RadioIDs = NULL; // radio IDs integer ..... RadioIDs = (ID2IX*) malloc( totRadios * sizeof( ID2IX )); if ( RadioIDs == NULL ) { return FALSE; } ..... // the qsort error c2664 cannot convert argument compar function int // sort the id2ix array by radioID //sort_by_radioID ( ID2IX*one , ID2IX*two) { // tried this signature sort_by_radioID ( void*one , void*two) { // tried this signature, also return ((ID2IX*)one)->id - ((ID2IX*)two)->id; } // call to qsort that will not compile qsort( RadioIDs, totRadios, sizeof(ID2IX), sort_by_radioID ); The error I get out of this is: Objects.cpp(295) : error C2664: 'qsort' : cannot convert parameter 4 from 'int (void *,void *)' to 'int (__cdecl *)(const void *,const void *)' None of the functions with this name in scope match the target type What the heck am I doing wrong? EDIT: Thanks, everybody. Us C/ASM coders, we don't bother 'bout no damn const. c visual-c++ c2664 share|improve this question edited Feb 22 '12 at 16:00 Charles 40.1k1069107 asked Feb 22 '12 at 10:32 Pete Wilson 6,26032642 1 What happens if you add the consts the compiler is telling you are lacking? –Mat Feb 22 '12 at 10:38 1 try with signature int sort_by_radioID ( const void*one , const void*two). –Naveen Feb 22 '12 at 10:38 1 check you default calling conv as well, if it not __cdecl, you need to explicity use __cdecl for the function –Necrolis Feb 22 '12 at 10:41 add a comment| 3 Answers 3 active oldest votes up vote 2 down vote accepted Change sort_by_radioID's signature to: int __cdecl sort_by_radioID(const void
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 error c2664 cannot convert parameter from const char to lpcwstr Learn more about Stack Overflow the company Business Learn more about hiring developers or mfc error c2664 posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow error c2664 cannot convert parameter 1 from 'const char *' to 'char *' Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up '_wctime32' : cannot convert parameter 1 from 'const http://stackoverflow.com/questions/9393101/incomprehensible-vc6-compile-error-c2664 time_t *' to 'const __time32_t *' up vote 0 down vote favorite VS 2010 Ultimate, I occur some error C2664, I've tried according to information found on web - add #include - change in general properties ' Use multi-byte character set' without success. do you have any ideas? c:\program files (x86)\microsoft visual studio 10.0\vc\include\time.inl(36): error C2664: '_ctime32' : cannot convert parameter 1 from 'const time_t *' to 'const http://stackoverflow.com/questions/19493792/wctime32-cannot-convert-parameter-1-from-const-time-t-to-const-time3 __time32_t *' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast c:\program files (x86)\microsoft visual studio 10.0\vc\include\time.inl(42): error C2664: 'errno_t _ctime32_s(char *,size_t,const __time32_t *)' : cannot convert parameter 3 from 'const time_t *' to 'const __time32_t *' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast c:\program files (x86)\microsoft visual studio 10.0\vc\include\time.inl(49): error C2664: '_gmtime32' : cannot convert parameter 1 from 'const time_t *' to 'const __time32_t *' Types pointed to are unrelated; conversion requires reinterpret_cast, it points to time.inl from MS VS _CRT_INSECURE_DEPRECATE(ctime_s) static __inline char * __CRTDECL ctime(const time_t * _Time) { #pragma warning( push ) #pragma warning( disable : 4996 ) return _ctime32(_Time); #pragma warning( pop ) } #if __STDC_WANT_SECURE_LIB__ static __inline errno_t __CRTDECL ctime_s(char *_Buffer, size_t _SizeInBytes, const time_t * _Time) { return _ctime32_s(_Buffer, _SizeInBytes, _Time); } #endif c++ visual-studio-2010 share|improve this question edited Oct 25 '13 at 12:52 asked Oct 21 '13 at 11:53 pearinthemountains 107 add a comment| 1 Answer 1 active oldest votes up vote 7 down vote accepted I think you have this problem: versions of Visual C++ and Microsoft C/C++ before Visual C++ 2005, time_t was a long int (32 bits) and hen
here for a quick overview of the site http://stackoverflow.com/questions/22806760/error-c2664-cannot-convert-argument-2-from-const-atlcadaptatlccomptrizip Help Center Detailed answers to any questions you might have https://trac.osgeo.org/gdal/ticket/3148 Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges error c2664 Ask Question x 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 only takes a minute: Sign up error C2664: cannot convert argument 2 from 'const ATL::CAdapt frmts/gtiff/tifvsi.cpp compile under VC++ 9.0 Reported by: aknuds1 Owned by: chaitanya Priority: high Milestone: Component: default Version: 1.6.2 Severity: major Keywords: Visual C++ Cc: arve.knudsen@…, warmerdam, mloskot Description GDAL 1.6.2 doesn't currently compile under VC++ 9.0 just due to the order of a couple of header inclusions in frmts/gtiff/tifvsi.cpp. The attached patch rectifies this. Attachments (1) tifvsi.diff (510 bytes) - added by aknuds1 7 years ago. Fix tifvsi.cpp compilation under VC++ Download all attachments as: .zip Oldest first Newest first Threaded Comments only Change History (9) Changed 7 years ago by aknuds1 Attachment tifvsi.diff added Fix tifvsi.cpp compilation under VC++ comment:1 Changed 7 years ago by warmerdam Cc warmerdam added Owner changed from warmerdam to chaitanya Chaitanya, Could you apply this after review in trunk at least and perhaps 1.6 too if it seems safe enough. comment:2 Changed 7 years ago by chaitanya Status changed from new to assigned aknuds1, There was no problem with tifvsi.cpp in the buildbot or my machine. Can you provide the error message and tell me how you reached this solution? comment:3 Changed 7 years ago by aknuds1 This is the error I get: cl /nologo /MD /EHsc /Ox /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE /DNDEBUG -I..\..\port -I..\. .\ogr -I..\..\gcore -I..\..\alg -I..\..\ogr\ogrsf_frmts -DBIGTIFF_SUPPORT -I\Devel\tiff-3.8.2-1-src\tiff-3.8.2-src\libt iff -Ilibgeotiff -DOGR_ENABLED /c tifvsi.cpp tifvsi.cpp C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\INCLUDE\swprintf.inl(41) : error C2664: '_vswprintf_c_l' : cannot convert parameter 4 from 'void *' to '_locale_t' Conversion from 'void*' to pointer to non-'void' requires an explicit cast C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\INCLUDE\swprintf.inl(51) : error C2664: '_vswprintf_c_l' : cannot convert parameter 4 from 'void *' to '_locale_t' Conversion from 'void*'