CFBitVectorGetBitAtIndex

指定した番号のCFBitを得ます

CFBit  CFBitVectorGetBitAtIndex ( 
        CFBitVectorRef   bv , 
        CFIndex   idx );

解説

指定した番号のCFBitを得ます。

返り値

引数

( CFBitVectorRef )bv

( CFIndex )idx

フレームワーク

CoreFoundation

クラス

CFBitVector

Function

使用可能

10.0

参照

例文

#include <CoreFoundation/CoreFoundation.h>

int main (int argc, const char * argv[]) {
	int bufferSize = 10;
	unsigned char nodeDataBuffer[ bufferSize ];
	nodeDataBuffer[0] = 0xff;
	nodeDataBuffer[1] = 0x00;
	nodeDataBuffer[2] = 0xff;
	nodeDataBuffer[3] = 0x00;
	nodeDataBuffer[4] = 0xff;
	nodeDataBuffer[5] = 0x00;
	nodeDataBuffer[6] = 0xff;
	nodeDataBuffer[7] = 0x00;
	nodeDataBuffer[8] = 0xff;
	nodeDataBuffer[9] = 0x00;
	CFBitVectorRef theBitVector = CFBitVectorCreate(kCFAllocatorDefault,   nodeDataBuffer,   bufferSize * 8);

	//CFBitを得る
	CFBit aBit = CFBitVectorGetBitAtIndex(theBitVector, 2);

	//表示用
	CFStringRef theString = CFStringCreateWithFormat (kCFAllocatorDefault,NULL,CFSTR(" %u\n"), aBit);
	CFShow(theString);

	
    return 0;
}