CFBitVectorGetCount
CFBitVectorRefが何ビットかを返します
CFIndex CFBitVectorGetCount ( CFBitVectorRef bv );
解説
CFBitVectorRefが何ビットかを返します。
返り値
引数
( CFBitVectorRef )bv
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); CFShow(theBitVector); //表示用 CFStringRef theString = CFStringCreateWithFormat (kCFAllocatorDefault,NULL,CFSTR("Bit count = %d\n"), CFBitVectorGetCount(theBitVector)); CFShow(theString); return 0; }