SQLITE源码剖析(7)
声明：本SQLite源码剖析系列为刘兴(http://deepfuture.iyunv.com/)原创，未经笔者授权，任何人和机构不能转载** ^The sqlite3_version[] string constant contains the text of
** macro. ^The sqlite3_libversion() function returns a pointer to the
** to the sqlite3_version[] string constant. The sqlite3_libversion()
** function is provided for use in DLLs since DLL users usually do not have
** direct access to string constants within the DLL. ^The
** sqlite3_libversion_number() function returns an integer equal to
** . ^The sqlite3_sourceid() function returns
** a pointer to a string constant whose value is the same as the
** C preprocessor macro.
**
** See also: and .
*/
SQLITE_API const char sqlite3_version[] = SQLITE_VERSION;
SQLITE_API const char *sqlite3_libversion(void);
SQLITE_API const char *sqlite3_sourceid(void);
SQLITE_API int sqlite3_libversion_number(void);
//SQLITE_VERSION 宏定义了版本号，在本源码包中定义为"3.6.23.1"
//sqlite3_version[]为前面定义的SQLITE_VERSION宏的内容，即版本号
//sqlite3_libversion()返回指向sqlite3_version[]字符数组常量的指针
//sqlite3_sourceid()返回一个指向SQLITE_SOURCE_ID宏内容的指针
//sqlite3_libversion_number()返回SQLITE_VERSION_NUMBER宏定义的版本号
#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
/*
** CAPI3REF: Run-Time Library Compilation Options Diagnostics
**
** ^The sqlite3_compileoption_used() function returns 0 or 1
** indicating whether the specified option was defined at
** compile time. ^The SQLITE_ prefix may be omitted from the
** option name passed to sqlite3_compileoption_used().
**sqlite3_compileoption_used()返回0和1,指示编译时是否有定义的选项
** ^The sqlite3_compileoption_get() function allows interating
** over the list of options that were defined at compile time by
** returning the N-th compile time option string. ^If N is out of range,
**sqlite3_compileoption_get()允许正在起作用的编译时定义的选项列表，
**返回N次编译时的选项字符串
** sqlite3_compileoption_get() returns a NULL pointer. ^The SQLITE_
** prefix is omitted from any strings returned by
** sqlite3_compileoption_get().
**如果 N过界，sqlite3_compileoption_get()返回NULL指针
** ^Support for the diagnostic functions sqlite3_compileoption_used()
** and sqlite3_compileoption_get() may be omitted by specifing the
** option at compile time.
**编译时定义SQLITE_OMIT_COMPILEOPTION_DIAGS选项，将忽略sqlite3_compileoption_used()和 sqlite3_compileoption_get()这2个诊断函数
** See also: SQL functions and
** and the .
*/
SQLITE_API int sqlite3_compileoption_used(const char *zOptName);
SQLITE_API const char *sqlite3_compileoption_get(int N);
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */
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