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
|
//Chris Xiong 2018
//3-Clause BSD License
#include <cstdio>
#include <cstring>
#include <cerrno>
#include <cctype>
#include <unistd.h>
#include <fcntl.h>
#include "utils.hpp"
int readint(const char* path)
{
int fd=open(path,O_RDONLY);
if(!~fd)return LOG('W',"failed to open %s for reading: %d",path,errno),0;
char buf[16];
int l=read(fd,buf,15);
if(!~l){close(fd);return 0;}
buf[l]=0;
close(fd);
return atoi(buf);
}
float readfloat(const char* path)
{
FILE* f=fopen(path,"r");
if(!f)return LOG('W',"failed to open %s for reading: %d",path,errno),0;
char buf[16];
ignore_result(fgets(buf,16,f));
buf[15]=0;
fclose(f);
return atof(buf);
}
std::string readstr(const char* path,int max_length)
{
FILE* f=fopen(path,"r");
if(!f)return LOG('W',"failed to open %s for reading: %d",path,errno),"";
char* buf=new char[max_length+1];
ignore_result(fgets(buf,max_length+1,f));
buf[max_length]=0;
fclose(f);
std::string ret(buf);
delete buf;
return ret;
}
void writeint(const char* path,int v)
{
FILE* f=fopen(path,"w");
if(!f){LOG('W',"failed to open %s for writing",path);return;}
ignore_result(fprintf(f,"%d",v));
fclose(f);
}
std::string trim(std::string s)
{
size_t st=0;
for(;st<s.length()&&isspace(s[st]);++st);
if(st==s.length())return "";
s=s.substr(st);
while(s.length()&&isspace(s.back()))s.pop_back();
return s;
}
void split(std::string s,char c,std::vector<std::string>& v)
{
v.clear();
for(size_t anch=0;;)
{
std::string sec;
if(s.find(c,anch)==std::string::npos)
sec=s.substr(anch);
else sec=s.substr(anch,s.find(c,anch)-anch);
v.push_back(sec);
if(s.find(c,anch)==std::string::npos)break;
anch=s.find(c,anch)+1;
}
}
|
