42/42_INT_09_piscine_cpp
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check leaks on d02 ok

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This commit is contained in:
hugogogo
2022-03-14 17:42:07 +01:00
parent eec58e03ac
commit a3a82c1c18
10 changed files with 112 additions and 13 deletions
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16
d02/ex01/Fixed.cpp
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@@ -5,14 +5,14 @@
* statics variables initialisation
*
* for MAX integer :
* 00000000 01111111 11111111 11111111 ( 8388607) (-1U >> (this->_frac +1))
* 00000000 01111111 11111111 11111111 ( 8388607) (-1U >> (this->_frac + 1))
* <= ... >=
* 11111111 10000000 00000000 00000000 (-8388608) ~MAX
*
*/
int const Fixed::_frac = 8;
int const Fixed::_max = -1U >> (_frac +1);
int const Fixed::_max = -1U >> (_frac + 1);
int const Fixed::_min = ~_max;
/*
@@ -55,6 +55,18 @@ Fixed::Fixed(float const floater) {
std::cout << "error: float out of range" << '\n';
else
this->_value = roundf(floater * (1 << Fixed::_frac));
// this->_value = *((int *)&floater); // access float adress content as int
// int sign = this->_value & (1 << 31); // extract sign
// int exponent = ((unsigned int)(this->_value << 1) >> 24) - 127; // extract exponent
// int integer = (this->_value << 8) | (1 << 31); // add left 1
// integer = (unsigned int)integer >> (31 - this->_frac - exponent);// align to right
// if (sign != 0)
// integer = (~integer + 1); // reverse negatif
// integer = (integer << (30 - this->_frac - exponent)) | sign; // add sign
// integer >>= (30 - this->_frac - exponent); // align right
// std::cout << "integer : " << printBitsInt(integer) << " (" << integer << ")\n";
}
/*