SQlite C Warnungen

Question

Ich bin mit der sqlite3.c Bibliothek.
Es kompiliert mit 140 etwas Konvertierungswarnungen.
Was ist los mit meinem Set-up?

Danke.

sqlite3.c
c:\Projects\Lib\sqlite3.c(11311) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11312) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11313) : warning C4244: '=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11316) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11430) : warning C4244: '=' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11431) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11434) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11435) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11436) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11437) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11452) : warning C4244: '=' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11454) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11499) : warning C4244: 'initializing' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11505) : warning C4244: '=' : conversion from 'double' to 'time_t', possible loss of data
c:\Projects\Lib\sqlite3.c(11547) : warning C4244: 'return' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11607) : warning C4244: '=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11633) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11720) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11722) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11724) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11726) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11730) : warning C4244: '+=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11736) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11738) : warning C4244: '+=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11742) : warning C4244: '+=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11781) : warning C4244: '=' : conversion from 'double' to 'sqlite3_int64', possible loss of data
c:\Projects\Lib\sqlite3.c(11950) : warning C4244: 'function' : conversion from 'u64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11981) : warning C4244: '=' : conversion from 'double' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(11984) : warning C4244: '=' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(12007) : warning C4244: '=' : conversion from 'sqlite3_int64' to 'char', possible loss of data
c:\Projects\Lib\sqlite3.c(12607) : warning C4244: 'return' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(16030) : warning C4244: '=' : conversion from 'sqlite3_int64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(17184) : warning C4244: 'initializing' : conversion from 'sqlite_uint64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(17512) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(19310) : warning C4244: '=' : conversion from 'u64' to 'unsigned char', possible loss of data
c:\Projects\Lib\sqlite3.c(19313) : warning C4244: '=' : conversion from 'u64' to 'unsigned char', possible loss of data
c:\Projects\Lib\sqlite3.c(19320) : warning C4244: '=' : conversion from 'u64' to 'u8', possible loss of data
c:\Projects\Lib\sqlite3.c(25669) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(25670) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(25702) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(25703) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(25735) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(25736) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'LONG', possible loss of data
c:\Projects\Lib\sqlite3.c(28785) : warning C4018: '>=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(29505) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(29511) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(29734) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(29747) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(29871) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(29887) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(30081) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(30360) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(30367) : warning C4244: '=' : conversion from 'i64' to 'Pgno', possible loss of data
c:\Projects\Lib\sqlite3.c(30370) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(30665) : warning C4018: '<=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(31713) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(31771) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(31978) : warning C4018: '<=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(33807) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(33809) : warning C4244: 'function' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(34527) : warning C4244: '=' : conversion from 'u16' to 'unsigned char', possible loss of data
c:\Projects\Lib\sqlite3.c(34623) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(35382) : warning C4244: '=' : conversion from 'u16' to 'unsigned char', possible loss of data
c:\Projects\Lib\sqlite3.c(35884) : warning C4018: '<=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(36557) : warning C4018: '<=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(36674) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(36679) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(36880) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(36887) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(37265) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(37267) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(37272) : warning C4244: 'function' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(37273) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(37343) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(37557) : warning C4018: '<=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(37695) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(37891) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(37962) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(37964) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(38070) : warning C4244: '=' : conversion from 'u16' to 'u8', possible loss of data
c:\Projects\Lib\sqlite3.c(38150) : warning C4244: '=' : conversion from 'u16' to 'u8', possible loss of data
c:\Projects\Lib\sqlite3.c(39686) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(40231) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(40541) : warning C4244: '=' : conversion from 'i64' to 'Pgno', possible loss of data
c:\Projects\Lib\sqlite3.c(40590) : warning C4244: 'initializing' : conversion from 'sqlite3_int64' to 'Pgno', possible loss of data
c:\Projects\Lib\sqlite3.c(40671) : warning C4244: 'initializing' : conversion from 'i64' to 'Pgno', possible loss of data
c:\Projects\Lib\sqlite3.c(41144) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(41152) : warning C4244: 'function' : conversion from 'i64' to 'size_t', possible loss of data
c:\Projects\Lib\sqlite3.c(41153) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(41493) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(41688) : warning C4244: '=' : conversion from 'const i64' to 'double', possible loss of data
c:\Projects\Lib\sqlite3.c(41693) : warning C4244: '=' : conversion from 'const i64' to 'double', possible loss of data
c:\Projects\Lib\sqlite3.c(42031) : warning C4244: 'return' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(43995) : warning C4244: 'return' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(44011) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(44118) : warning C4244: '=' : conversion from 'u64' to 'u8', possible loss of data
c:\Projects\Lib\sqlite3.c(44132) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(44287) : warning C4018: '<' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(44382) : warning C4018: '>=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(44444) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(44489) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(44827) : warning C4244: 'return' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(45006) : warning C4244: '=' : conversion from 'double' to 'i64', possible loss of data
c:\Projects\Lib\sqlite3.c(45036) : warning C4244: '=' : conversion from 'double' to 'u64', possible loss of data
c:\Projects\Lib\sqlite3.c(46720) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(46735) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(47061) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(47071) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(47168) : warning C4244: '=' : conversion from 'i64' to 'double', possible loss of data
c:\Projects\Lib\sqlite3.c(47961) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(47982) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(48020) : warning C4018: '>=' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(48038) : warning C4018: '<' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(48055) : warning C4018: '<' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(48235) : warning C4244: '+=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(48258) : warning C4244: 'function' : conversion from 'u64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(48270) : warning C4244: 'function' : conversion from 'u64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(48275) : warning C4244: '=' : conversion from 'u64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(48493) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(48497) : warning C4244: '=' : conversion from 'i64' to 'u8', possible loss of data
c:\Projects\Lib\sqlite3.c(48633) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(49420) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(49564) : warning C4244: '=' : conversion from 'i64' to 'u32', possible loss of data
c:\Projects\Lib\sqlite3.c(49567) : warning C4018: '>' : signed/unsigned mismatch
c:\Projects\Lib\sqlite3.c(50183) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(50189) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(50635) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(50636) : warning C4244: '=' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(62675) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(62711) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(63239) : warning C4244: 'function' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(63512) : warning C4244: 'initializing' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(63513) : warning C4244: 'initializing' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(63514) : warning C4244: 'initializing' : conversion from 'i64' to 'int', possible loss of data
c:\Projects\Lib\sqlite3.c(65536) : warning C4049: compiler limit : terminating line number emission
        Compiler limit for line number is 65535
c:\Projects\Lib\sqlite3.c(77234) : warning C4244: '=' : conversion from 'u16' to 'unsigned char', possible loss of data

Answer 1

Von der SQLite Website:

  

Einige Leute sagen, wir sollten   Beseitigung aller Warnungen wegen gutartiger   Warnungen Maske echte Warnungen Das könnte   entstehen in Zukunft ändert. Das ist wahr   genug. Aber in der Antwort, die Entwickler   beachten Sie, dass alle Warnungen bereits   in den verwendeten Compilern fest für   SQLite Entwicklung (verschiedene Versionen   von GCC). Compiler-Warnungen nur entstehen,   von Compiler, die die Entwickler tun   hat Zugriff auf nicht.

http://www.sqlite.org/faq.html#q17

Answer 2

In Visual Studio 2005 oder 2008, ist es einfach, den Compiler Warnstufe nur auf sqlite.c zu konfigurieren. Auf diese Weise können Sie eine schöne ausführliche / w4 auf den gesamten Code verwenden, die Sie und ein / w1 auf sqlite3.c schreiben, damit Sie nicht diese Warnungen erhalten. Rechtsklicken Sie sqlite.c in der Lösung Explorer, klicken Sie auf Eigenschaften, Drill-Down auf Konfigurationseigenschaften -> C / C ++ -.> Allgemein, und wählen Sie / W1 oder / W0 von der Warnstufe Dropdown-

Ich habe diesen Ansatz nicht in anderen Versionen von VS oder VC ++ versucht. Es wäre toll, wenn Sie Ihre spezifischen Compiler / IDE erwähnt.

Answer 3

Nein, es ist nicht Ihr Setup. SQLite ist mit vielen Warnungen geschrieben. Sie haben schon seit Jahren nicht behoben worden. Nicht viel zu tun, aber die Warnungen zu ignorieren oder Patches beitragen zurück