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Added a pure method. Should improve efficiency

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KOLANICH 2019-02-12 12:26:04 +03:00
parent 8485bb7d29
commit 51bd6d66ea
1 changed files with 27 additions and 0 deletions
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27
include/SQLiteCpp/Statement.h
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@ -16,6 +16,32 @@
#include <map> #include <map>
#include <climits> // For INT_MAX #include <climits> // For INT_MAX
// some macros are taken from https://github.com/nemequ/hedley/blob/master/hedley.h , it was public domain that time
#if defined(__GNUC__) || defined(__GNUG__) || defined(__clang__) ||\
(defined(__INTEL_COMPILER) && __INTEL_COMPILER > 1600) ||\
(defined(__ARMCC_VERSION) && __ARMCC_VERSION > 4010000) ||\
(\
defined(__TI_COMPILER_VERSION__) && (\
__TI_COMPILER_VERSION__ > 8003000 ||\
(__TI_COMPILER_VERSION__ > 7003000 && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))\
)\
)
#if defined(__has_attribute)
#if !defined(SQLITECPP_PURE_FUNC) && __has_attribute(const)
#define SQLITECPP_PURE_FUNC __attribute__((const))
#endif
#endif
#endif
#if !defined(SQLITECPP_PURE_FUNC)
#define SQLITECPP_PURE_FUNC
#if defined(__GNUC__) || defined(__GNUG__) || defined(__clang__)
#warning "You have a compiler without the needed macros or attributes. Cannot detect and apply support of pure const functions. Efficiency likely will be harmed. Consider using another compiler or its version"
#elif _MSC_VER
#pragma message "You have a compiler without the needed macros or attributes. Cannot detect and apply support of pure const functions. Efficiency likely will be harmed. Consider using another compiler or its version"
#endif
#endif
// Forward declarations to avoid inclusion of <sqlite3.h> in a header // Forward declarations to avoid inclusion of <sqlite3.h> in a header
struct sqlite3; struct sqlite3;
struct sqlite3_stmt; struct sqlite3_stmt;
@ -121,6 +147,7 @@ public:
// instead of being copied. // instead of being copied.
// => if you know what you are doing, use bindNoCopy() instead of bind() // => if you know what you are doing, use bindNoCopy() instead of bind()
SQLITECPP_PURE_FUNC
int getIndex(const char * const apName); int getIndex(const char * const apName);
/** /**