Re: [sqlite] EXT :Re: Compiling SQLite3 with MSVC 2010
For gcc try -Wextra and -Wconversion. You'll get tons of warnings. -Wall just does the ones most people are concerned with. Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Igor Korot [ikoro...@gmail.com] Sent: Sunday, November 04, 2012 2:12 PM To: General Discussion of SQLite Database Subject: Re: [sqlite] EXT :Re: Compiling SQLite3 with MSVC 2010 Michael, On Sun, Nov 4, 2012 at 5:59 AM, Black, Michael (IS) michael.bla...@ngc.com wrote: Hmmm...interesting...I'm using VS 2010 Express 32-bit and I would've assumed the warnings would match. I also enabled SQLITE_64BIT_STATS to try and force the first warning but that didn't cause it. Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86 Well, I'm getting it with Professional build of 32-bits. That's a bit disconcerting actually but I guess Express is less pedantic than Studio. You can always stick this in to shut it up. There's a yin yang to fixing thesesimple enough to throw a cast in there...but down the road if you make other changes on the right-hand-side datatype that could be of use so you would be suppressing a valid warning. It's a mixed bag. So suppressing warnings from picky compilers is the best way to go. Do you still see then on lower levels? Not with /W3. But it's interesting that -Wall does not produce them with gcc... Thank you. #pragma warning(disable: 4244) // possible loss of data Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Jonas Malaco Filho [jonasmalacofi...@gmail.com] Sent: Saturday, November 03, 2012 3:48 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Actually, on MSVC 2010 I just got the following errors with /W3: -- Rebuild All started: Project: Shell, Configuration: Release x64 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86-64\sqlite3.exe -- Rebuild All started: Project: Shell, Configuration: Release Win32 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86\sqlite3.exe == Rebuild All: 2 succeeded, 0 failed, 0 skipped == *Jonas Malaco Filho* 2012/11/3 Black, Michael (IS) michael.bla...@ngc.com You probably have the warning level turned up high. Up to level 3 it compiles without warnings. Level 4 starts complaining loudly. Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Igor Korot [ikoro...@gmail.com] Sent: Friday, November 02, 2012 6:25 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Richard, On Fri, Nov 2, 2012 at 4:14 PM, Richard Hipp d...@sqlite.org wrote: On Fri, Nov 2, 2012 at 7:05 PM, Igor Korot ikoro...@gmail.com wrote: Hi, ALL, Is anybody trying to compile SQLite with MSVC 2010? Tests 9e and 9f at http://www.sqlite.org/checklists/3071400#c9 were performed using MSVC 2010. I am getting a lot of warnings. Is there any interest in fixing
Re: [sqlite] EXT :Re: Compiling SQLite3 with MSVC 2010
Hmmm...interesting...I'm using VS 2010 Express 32-bit and I would've assumed the warnings would match. I also enabled SQLITE_64BIT_STATS to try and force the first warning but that didn't cause it. Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86 That's a bit disconcerting actually but I guess Express is less pedantic than Studio. You can always stick this in to shut it up. There's a yin yang to fixing thesesimple enough to throw a cast in there...but down the road if you make other changes on the right-hand-side datatype that could be of use so you would be suppressing a valid warning. It's a mixed bag. So suppressing warnings from picky compilers is the best way to go. Do you still see then on lower levels? #pragma warning(disable: 4244) // possible loss of data Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Jonas Malaco Filho [jonasmalacofi...@gmail.com] Sent: Saturday, November 03, 2012 3:48 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Actually, on MSVC 2010 I just got the following errors with /W3: -- Rebuild All started: Project: Shell, Configuration: Release x64 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86-64\sqlite3.exe -- Rebuild All started: Project: Shell, Configuration: Release Win32 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86\sqlite3.exe == Rebuild All: 2 succeeded, 0 failed, 0 skipped == *Jonas Malaco Filho* 2012/11/3 Black, Michael (IS) michael.bla...@ngc.com You probably have the warning level turned up high. Up to level 3 it compiles without warnings. Level 4 starts complaining loudly. Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Igor Korot [ikoro...@gmail.com] Sent: Friday, November 02, 2012 6:25 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Richard, On Fri, Nov 2, 2012 at 4:14 PM, Richard Hipp d...@sqlite.org wrote: On Fri, Nov 2, 2012 at 7:05 PM, Igor Korot ikoro...@gmail.com wrote: Hi, ALL, Is anybody trying to compile SQLite with MSVC 2010? Tests 9e and 9f at http://www.sqlite.org/checklists/3071400#c9 were performed using MSVC 2010. I am getting a lot of warnings. Is there any interest in fixing those? No. See http://www.sqlite.org/testing.html#staticanalysis for an explanation. I just read this link. Interesting information. IIUC, all those warnings are harmless and they do not appear on other platforms. Which means that either gcc is more forgiving or that I am trying to compile my application with some very strange configuration. Or maybe it's C++11 that throws the compilation off of track? I'm just trying to understand why those warnings appear and why nobody else see them on other platforms. Thank you. If not what is the policy of using SQLite3 code? I'm using 3.7.14 release. Thank you. ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users -- D. Richard Hipp d...@sqlite.org
Re: [sqlite] EXT :Re: Compiling SQLite3 with MSVC 2010
Michael, On Sun, Nov 4, 2012 at 5:59 AM, Black, Michael (IS) michael.bla...@ngc.com wrote: Hmmm...interesting...I'm using VS 2010 Express 32-bit and I would've assumed the warnings would match. I also enabled SQLITE_64BIT_STATS to try and force the first warning but that didn't cause it. Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86 Well, I'm getting it with Professional build of 32-bits. That's a bit disconcerting actually but I guess Express is less pedantic than Studio. You can always stick this in to shut it up. There's a yin yang to fixing thesesimple enough to throw a cast in there...but down the road if you make other changes on the right-hand-side datatype that could be of use so you would be suppressing a valid warning. It's a mixed bag. So suppressing warnings from picky compilers is the best way to go. Do you still see then on lower levels? Not with /W3. But it's interesting that -Wall does not produce them with gcc... Thank you. #pragma warning(disable: 4244) // possible loss of data Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Jonas Malaco Filho [jonasmalacofi...@gmail.com] Sent: Saturday, November 03, 2012 3:48 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Actually, on MSVC 2010 I just got the following errors with /W3: -- Rebuild All started: Project: Shell, Configuration: Release x64 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86-64\sqlite3.exe -- Rebuild All started: Project: Shell, Configuration: Release Win32 -- shell.c sqlite3.c ..\src\sqlite3.c(78502): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78503): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(78504): warning C4244: 'initializing' : conversion from 'sqlite_int64' to 'tRowcnt', possible loss of data ..\src\sqlite3.c(104145): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data ..\src\sqlite3.c(104170): warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data Generating code Finished generating code Shell.vcxproj - X:\jonas-malaco-filho\lib\SQLite\Shell\..\bin\x86\sqlite3.exe == Rebuild All: 2 succeeded, 0 failed, 0 skipped == *Jonas Malaco Filho* 2012/11/3 Black, Michael (IS) michael.bla...@ngc.com You probably have the warning level turned up high. Up to level 3 it compiles without warnings. Level 4 starts complaining loudly. Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Igor Korot [ikoro...@gmail.com] Sent: Friday, November 02, 2012 6:25 PM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Compiling SQLite3 with MSVC 2010 Richard, On Fri, Nov 2, 2012 at 4:14 PM, Richard Hipp d...@sqlite.org wrote: On Fri, Nov 2, 2012 at 7:05 PM, Igor Korot ikoro...@gmail.com wrote: Hi, ALL, Is anybody trying to compile SQLite with MSVC 2010? Tests 9e and 9f at http://www.sqlite.org/checklists/3071400#c9 were performed using MSVC 2010. I am getting a lot of warnings. Is there any interest in fixing those? No. See http://www.sqlite.org/testing.html#staticanalysis for an explanation. I just read this link. Interesting information. IIUC, all those warnings are harmless and they do not appear on other platforms. Which means that either gcc is more forgiving or that I am trying to compile my application with some very strange configuration. Or maybe it's C++11 that throws the compilation off of track? I'm just trying to understand why those warnings appear and why nobody else see them on other platforms. Thank you. If not what
