我知道這是某種鏈接錯誤,並可能是由於我缺少某種編譯器選項。所以請讓我知道我做錯了什麼。鏈接器2019錯誤,同時編譯與cl.exe sqlite示例代碼
我的代碼來自示例程序@http://www.sqlite.org/quickstart.html
#include <stdio.h>
#include <sqlite3.h>
static int callback(void *NotUsed, int argc, char **argv, char **azColName){
int i;
for(i=0; i<argc; i++){
printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
}
printf("\n");
return 0;
}
int main(int argc, char **argv){
sqlite3 *db;
char *zErrMsg = 0;
int rc;
if(argc!=3){
fprintf(stderr, "Usage: %s DATABASE SQL-STATEMENT\n", argv[0]);
return(1);
}
rc = sqlite3_open(argv[1], &db);
if(rc){
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
return(1);
}
rc = sqlite3_exec(db, argv[2], callback, 0, &zErrMsg);
if(rc!=SQLITE_OK){
fprintf(stderr, "SQL error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
sqlite3_close(db);
return 0;
}
我現在用的是「開發者命令提示符」在Windows中使用以下命令編譯:(SQLite的頭文件是在%USERPROFILE%\ LIB )
,我得到了以下錯誤消息:
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.23918 for x86
Copyright (C) Microsoft Corporation. All rights reserved.
helloworld.c
Microsoft (R) Incremental Linker Version 14.00.23918.0
Copyright (C) Microsoft Corporation. All rights reserved.
/out:helloworld.exe
helloworld.obj
helloworld.obj : error LNK2019: unresolved external symbol _sqlite3_close referenced in function _main
helloworld.obj : error LNK2019: unresolved external symbol _sqlite3_exec referenced in function _main
helloworld.obj : error LNK2019: unresolved external symbol _sqlite3_free referenced in function _main
helloworld.obj : error LNK2019: unresolved external symbol _sqlite3_open referenced in function _main
helloworld.obj : error LNK2019: unresolved external symbol _sqlite3_errmsg referenced in function _main
helloworld.exe : fatal error LNK1120: 5 unresolved externals
你需要對SQLite庫鏈接代碼(有,我認爲,/ L選項 - 雖然我還沒有超過十年用過Windows中,這樣可能是錯誤的)。 –
命令行中沒有庫。 – fukanchik