1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
* Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* $Id$
*/
#include <cassert>
#include "mem/gems_common/util.hh"
// Split a string into a head and tail strings on the specified
// character. Return the head and the string passed in is modified by
// removing the head, leaving just the tail.
string string_split(string& str, char split_character)
{
string head = "";
string tail = "";
unsigned counter = 0;
while(counter < str.size()) {
if (str[counter] == split_character) {
counter++;
break;
} else {
head += str[counter];
}
counter++;
}
while(counter < str.size()) {
tail += str[counter];
counter++;
}
str = tail;
return head;
}
string bool_to_string(bool value)
{
if (value) {
return "true";
} else {
return "false";
}
}
string int_to_string(int n, bool zero_fill, int width)
{
ostringstream sstr;
if(zero_fill) {
sstr << setw(width) << setfill('0') << n;
} else {
sstr << n;
}
string str = sstr.str();
return str;
}
float string_to_float(string& str)
{
stringstream sstr(str);
float ret;
sstr >> ret;
return ret;
}
// Log functions
int log_int(long long n)
{
assert(n > 0);
int counter = 0;
while (n >= 2) {
counter++;
n = n>>(long long)(1);
}
return counter;
}
bool is_power_of_2(long long n)
{
return (n == ((long long)(1) << log_int(n)));
}
|
