NJUPT-CSAPP/datalab-handout/bits.h

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2024-06-12 01:36:23 +02:00
/* Copyright (C) 1991-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* This header is separate from features.h so that the compiler can
include it implicitly at the start of every compilation. It must
not itself include <features.h> or any other header that includes
<features.h> because the implicit include comes before any feature
test macros that may be defined in a source file before it first
explicitly includes a system header. GCC knows the name of this
header in order to preinclude it. */
/* glibc's intent is to support the IEC 559 math functionality, real
and complex. If the GCC (4.9 and later) predefined macros
specifying compiler intent are available, use them to determine
whether the overall intent is to support these features; otherwise,
presume an older compiler has intent to support these features and
define these macros by default. */
/* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is
synchronized with ISO/IEC 10646:2017, fifth edition, plus
the following additions from Amendment 1 to the fifth edition:
- 56 emoji characters
- 285 hentaigana
- 3 additional Zanabazar Square characters */
//1
int bitAnd(int, int);
int test_bitAnd(int, int);
int tmin();
int test_tmin();
int isZero(int);
int test_isZero(int);
int isTmin(int);
int test_isTmin(int);
//2
int allOddBits();
int test_allOddBits();
int negate(int);
int test_negate(int);
int isNotEqual(int, int);
int test_isNotEqual(int, int);
//3
int isAsciiDigit(int);
int test_isAsciiDigit(int);
int conditional(int, int, int);
int test_conditional(int, int, int);
int bitMask(int, int);
int test_bitMask(int, int);
//4
int logicalNeg(int);
int test_logicalNeg(int);
int bitParity(int);
int test_bitParity(int);
int absVal(int);
int test_absVal(int);
//float
unsigned floatScale2(unsigned);
unsigned test_floatScale2(unsigned);
int floatFloat2Int(unsigned);
int test_floatFloat2Int(unsigned);
unsigned floatPower2(int);
unsigned test_floatPower2(int);