【C言語】
memsetのよくある間違い

#include <string.h>
int main(void) {
    int ary[1024];
    struct {
        float   f;
        double  d;
    } buf;
    //1.[(warning)memsetZeroBytes]
    memset(ary,0x12,0);
    //2.[(portability)memsetFloat]    
    memset(ary,3.14,sizeof(ary));
    //3.[(warning)memsetValueOutOfRange]
    memset(ary,0x1234,sizeof(ary));
    //4.[(portability)memsetClassFloat] C++だけ    
    memset(&buf,0,sizeof(buf));
    //5.[(warning)incompleteArrayFill]
    memset(ary,0,1024);
    //6.[(warning)sizeofDivisionMemfunc]
    memset(ary,0,sizeof(ary)/sizeof(ary[0]));
}