int main(int argc, char* argv[])
{
float a, b, c, sd, alpha, beta, z;
double a2, b2, c2, sd2, alpha2, beta2, z2;
a = a2 = 1.00000;
b = b2 = -333.333;
c = c2 = 1.23456;
printf("a = %-12f : ", a);
print_bit(a);
printf("b = %-12f : ", b);
print_bit(b);
printf("c = %-12f : ", c);
print_bit(c);
sd = sqrt( b*b - 4*a*c );
sd2 = sqrt( b2*b2 - 4*a2*c2);
alpha = (-b + sd) / (2*a);
beta = (-b - sd) / (2*a);
alpha2 = (-b2 + sd2) / (2*a2);
beta2 = (-b2 - sd2) / (2*a2);
printf("alpha = %15e beta = %15e\n", alpha, beta);
printf("alpha2= %15e beta2= %15e\n", alpha2, beta2);
printf("( sd= %f )\n", sd);
printf("( sd= %lf )\n", sd2);
return 0;
}
int main(){
int i;
unsigned char u1,u2,u3;
u1 = 68;
printf("u1 = ");print_bit(u1);
printf("u1 = %d\n",u1);
u2 = 15;
u2 = (0xff ^ u2) + 0x01;
printf("u2 = ");print_bit(u2);
printf("u2 = %d\n",u2);
printf("u2 = %d\n",(char)u2);
u3 = u1 + (char)u2;
printf("u3 = ");print_bit(u3);
}
int decompress_3(int fd,int fdd,int fdtemp)
{
unsigned char ch,chtemp,temp,tempch,temp1,temp2;
int i,j=1,count=1,pos,n=1;
char *ma;
pos=lseek(fdtemp,0,SEEK_END);
printf("POSITION : %d\n",pos);
ma=(char *)malloc(pos+1);
lseek(fdtemp,0,SEEK_SET);
read(fdtemp,ma,pos);
while(read(fd,&ch,1))
{
if(j%3==1)
{
print_bit(ch);
tempch=ch;
tempch=tempch>>5;
chtemp=*(ma+(int)tempch);
write(fdd,&chtemp,1);
temp1=ch;
temp1=temp1<<3;
temp1=temp1>>5;
if(temp1==7)
break;
chtemp=*(ma+(int)temp1);
write(fdd,&chtemp,1);
temp2=ch;
temp2=temp2<<6;
temp2=temp2>>6;
temp2=temp2<<1;
}
else if(j%3==2)
static void print_bit(int i, char c)
{
if (i > 0)
print_bit(i - 1, c / 2);
if (i == 4)
ft_putchar(' ');
ft_putchar(c % 2 + 48);
}
main()
{
int i,n;
printf("Enter the element\n");
scanf("%d",&i);
int size = sizeof(i) * 8;
print_bit(i,size);
reverse_bit(i,size);
}
int main(int argc, char *argv[])
{
struct pcard card;
union _xyz xyz;
card.pips = 0xA;
card.suit = 0x5;
card.a[0] = 'h';
card.a[9] = 'c';
char c = 'b';
extern void print_bit(int);
print_bit(0xa3b42233);
printf ("sizeof(char)=%d\n", sizeof('A'));
printf ("sizeof(char)=%d\n", sizeof(c));
/* sizeof(struct pcard) = 12 */
printf("sizeof(struct pcard)=%ld\n", sizeof(struct pcard));
/* sizeof(struct _abc) = 8 */
printf("sizeof(struct _abc)=%ld\n", sizeof(struct _abc));
/* sizeof(struct _small_integers) = 8 */
printf("sizeof(struct _small_integers)=%ld\n", sizeof(struct _small_integers));
/* sizeof(struct _def) = 8 */
printf("sizeof(struct def)=%ld\n", sizeof(struct _def));
xyz.bits.x = 3;
xyz.bits.y = 2;
xyz.bits.z = 4;
printf("bundle=0x%x\n", xyz.bundle);
print_bit(xyz.bundle);
return 0;
}
// Constructor: Constructor for Connection class
// Only defines the initial values for the object
// parameter: type, defines the type of the socket
Connection::Connection (int target_type)
{
#if 0
d_print( "[Constructor] type : %d (", type );
print_bit( type );
d_print( ")\n" );
#endif
if( !((target_type & CONNECTION_FIFO) || (target_type & CONNECTION_SOCKET )) )
{
tl_message ("You must decide Socket or FIFO");
return;
}
type = target_type;
fd_read = FALSE;
fd_write = FALSE;
fp_read = NULL;
fp_write = NULL;
stream = NULL;
sprintf(name, "NoName" );
}
int main() {
float_b f1,f2,f3,f4;
int i = 0;
int c1 = 0;
int c2 = 0;
int c3 = 0;
int c4 = 0;
srand(time(NULL));
while(i < 1000000) { //正規化数ランダム
f1.ieee.sign = rand()%2;
f1.ieee.exp = rand()%254+1;
f1.ieee.fraction = rand()%8388608;
f2.ieee.sign = rand()%2;
f2.ieee.exp = rand()%254+1;
f2.ieee.fraction = rand()%8388608;
f3.f = f1.f + f2.f;
f4.f = fadd(f1.f,f2.f);
if (f3.f != f4.f && (f3.ieee.exp != 0 || f4.ieee.exp != 0) && (f3.ieee.exp != 255 || f4.ieee.exp != 255)) {
printf("%f+%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c1++;
}
f3.f = f1.f * f2.f;
f4.f = fmul(f1.f,f2.f);
if (f3.f != f4.f && (f3.ieee.exp != 0 || f4.ieee.exp != 0) && (f3.ieee.exp != 255 || (f4.ieee.exp != 0 && f4.ieee.exp != 255))) {
printf("%f*%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c2++;
}
f3.f = f1.f / f2.f;
f4.f = fdiv(f1.f,f2.f);
if (f3.f != f4.f && ((f3.ieee.exp != 0 && f3.ieee.exp != 255) || (f4.ieee.exp != 0 && f4.ieee.exp != 255))) {
printf("%f/%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c3++;
}
f1.ieee.sign = 0;
f3.f = sqrtf(f1.f);
f4.f = sqrt_m(f1.f);
if (f3.f != f4.f) {
printf("sqrt(%f)=%f\n",f1.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c4++;
}
i++;
}
printf("fadd:%d fmul:%d fdiv:%d sqrt:%d\n",c1,c2,c3,c4);
i = 0;
c1 = 0;
c2 = 0;
c3 = 0;
c4 = 0;
while(i < 1000000) { //0.0に対する計算
f1.ieee.sign = rand()%2;
f1.ieee.exp = (rand()%254+1)*(i%2);
f1.ieee.fraction = rand()%8388608;
f2.ieee.sign = rand()%2;
f2.ieee.exp = (rand()%254+1)*((i+1)%2);
f2.ieee.fraction = rand()%8388608;
if (i%2 == 1) f3.f = f1.f;
else f3.f = f2.f;
f4.f = fadd(f1.f,f2.f);
if (f3.f != f4.f) {
printf("%f+%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c1++;
}
f3.ieee.sign = (f1.ieee.sign + f2.ieee.sign)%2;
f3.ieee.exp = 0;
f3.ieee.fraction = f1.ieee.fraction;
f4.f = fmul(f1.f,f2.f);
if (f3.f != f4.f) {
printf("%f*%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c2++;
}
if (i%2 == 1) {
f3.ieee.sign = f1.ieee.sign + f2.ieee.sign;
f3.ieee.exp = 255;
f3.ieee.fraction = f1.ieee.fraction;
} else {
f3.f = 0.0 / f2.f;
}
f4.f = fdiv(f1.f,f2.f);
if ((f3.ieee.sign != f4.ieee.sign || f3.ieee.exp != f4.ieee.exp || f3.ieee.fraction != f4.ieee.fraction) && (i%2 == 1 || (f3.ieee.exp != 0 && f3.ieee.exp != 255) || (f4.ieee.exp != 0 && f4.ieee.exp != 255))) {
printf("%f/%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c3++;
}
f1.ieee.sign = 0;
if (i%2 == 1) f3.f = sqrtf(f1.f);
else f3.f = f1.f;
f4.f = sqrt_m(f1.f);
if (f3.f != f4.f) {
printf("sqrt(%f)=%f\n",f1.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c4++;
}
i++;
}
printf("コーナーケース\n");
printf("0.0(とみなされる数)の演算 fadd:%d fmul:%d fdiv:%d sqrt:%d\n",c1,c2,c3,c4);
i = 0;
c1 = 0;
c2 = 0;
c3 = 0;
c4 = 0;
while(i < 1000000) {
f1.ieee.sign = rand()%2;
f1.ieee.exp = (rand()%254+1);
f1.ieee.fraction = rand()%8388608;
f2.ieee.sign = rand()%2;
f2.ieee.exp = f1.ieee.exp + (rand()%3-1);
f2.ieee.fraction = rand()%8388608;
if (f2.ieee.exp == 255) f2.ieee.exp = 254;
if (f2.ieee.exp == 0) f2.ieee.exp = 1;
f3.f = f1.f + f2.f;
f4.f = fadd(f1.f,f2.f);
if (f3.f != f4.f && (f3.ieee.exp != 0 || f4.ieee.exp != 0) && (f3.ieee.exp != 255 || f4.ieee.exp != 255)) {
print_bit(f1);
print_bit(f2);
printf("%f+%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c1++;
}
f2.f = f1.f;
f2.ieee.sign = f1.ieee.sign + 1;
f3.f = f1.f + f2.f;
f4.f = fadd(f1.f,f2.f);
if (f3.f != f4.f && (f3.ieee.exp != 0 || f4.ieee.exp != 0) && (f3.ieee.exp != 255 || f4.ieee.exp != 255)) {
printf("%f+%f=%f\n",f1.f,f2.f,f3.f);
print_bit(f3);
print_bit(f4);
} else {
c2++;
}
i++;
}
printf("指数の差が高々1 fadd:%d\n",c1);
printf("絶対値が等しく符号が逆 fadd:%d\n",c2);
return 0;
}
void ft_putbit(char c)
{
print_bit(7, c);
ft_putchar('\n');
}
void dump_code_bin(FILE* fp)
{
unsigned int i = 0;
unsigned int shift_count = 0;
unsigned char c = 0;
unsigned short entry_count = 0;
unsigned char bitstream_token = 0;
unsigned char bitstream_length = 0;
unsigned char bitstream_length_byte = 0;
for (c = 0; c < MAX_SYMBOLS; c++) {
if (code[c][0])
entry_count++;
if (c == 255)
break;
}
fwrite(&entry_count, sizeof(unsigned short), 1, fp);
for (c = 0; c < MAX_SYMBOLS; c++) {
if (code[c][0]) {
fwrite(&c, sizeof(unsigned char), 1, fp);
bitstream_length = strlen(code[c]);
bitstream_length_byte = bitstream_length / 8;
if (bitstream_length % 8)
bitstream_length_byte++;
fwrite(&bitstream_length, sizeof(unsigned char), 1, fp);
fwrite(&bitstream_length_byte, sizeof(unsigned char), 1, fp);
//debug
printf("%d ", c);
//debug
for (i = 0; i < bitstream_length; i++) {
if (code[c][i] == '1')
bitstream_token |= 1;
if (shift_count == 7) {
fwrite(&bitstream_token, sizeof(unsigned char), 1, fp);
//debug
print_bit(bitstream_token);
putc(' ', stdout);
//debug
bitstream_token = 0;
shift_count = 0;
}
else {
bitstream_token <<= 1;
shift_count++;
}
}
if (shift_count) {
bitstream_token <<= (7 - shift_count);
fwrite(&bitstream_token, sizeof(unsigned char), 1, fp);
//debug
print_bit(bitstream_token);
putc(' ', stdout);
//debug
bitstream_token = 0;
shift_count = 0;
}
}
//debug
if (code[c][0]) {
putc('\n', stdout);
//printf("%d %s\n", c, code[c]);
printf("%d", c);
for (i = 0; i < strlen(code[c]); i++) {
if (!(i % 8))
putc(' ', stdout);
putc(code[c][i], stdout);
}
putc('\n', stdout);
}
//debug
if (c == 255)
break;
}
}
int compress_6(int fd,char *ma,char * argv)
{
char * temp_name;
int cf,j=1,i,k,n=1,chek=0;
char ch;
unsigned char c,byt,temp1,temp2,ctemp[3],temp3;
temp_name=(char *)malloc(24);
strcpy(temp_name,argv);
strcat(temp_name,"_comp");
cf=open(temp_name,O_WRONLY|O_CREAT,0666);
lseek(fd,0,SEEK_SET);
byt=byt^byt;
while(read(fd,&ch,1))
{
chek=0;
for(k=0;k<3;k++)
ctemp[k]=ctemp[k]^ctemp[k];
k=0;
c=c^c;
for(i=0;*(ma+i)!=ch;i++);
do
{
sprintf(&ctemp[k],"%d",(int)i%10);
ctemp[k]=ctemp[k]-48;
k++;
i=i/10;
}while(i);
c=ctemp[2]*100+ctemp[1]*10+ctemp[0];
if(!read(fd,&ch,1))
{
lseek(fd,1,SEEK_CUR);
chek=1;
}
lseek(fd,-1,SEEK_CUR);
if(n%3==1)
{
if(j%2==1)
{
temp1=c;
temp1=temp1<<2;
byt=byt|temp1;
if(chek)
{
k=0;
i=63;
do
{
sprintf(&ctemp[k],"%d",(int)i%10);
ctemp[k]=ctemp[k]-48;
k++;
i=i/10;
}while(i);
c=ctemp[2]*100+ctemp[1]*10+ctemp[0];
temp1=c;
temp1=temp1<<2;
temp1=temp1>>6;
byt=byt|temp1;
write(cf,&byt,1);
byt=byt^byt;
temp1=c;
temp1=temp1>>2;
temp1=temp1<<4;
write(cf,&temp1,1);
break;
}
temp1=c;
}
else
{
temp2=c;
temp1=temp1<<2;
temp1=temp1>>6;
byt=byt|temp1;
print_bit(byt);
write(cf,&byt,1);
byt=byt^byt;
if(chek)
{
temp1=temp2;
temp1=temp1<<4;
k=0;
i=63;
do
{
sprintf(&ctemp[k],"%d",(int)i%10);
ctemp[k]=ctemp[k]-48;
k++;
i=i/10;
}while(i);
c=ctemp[2]*100+ctemp[1]*10+ctemp[0];
temp3=c;
temp3=temp3<<2;
temp3=temp3>>4;
temp1=temp1|temp3;
write(cf,&temp1,1);
temp1=c;
temp1=temp1<<6;
write(cf,&temp1,1);
break;
}
n++;
}
j++;
}
