rayzor

diff src/stl/vector.h @ 22:5380ff64e83f

minor changes from dos, and line endings cleanup
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 02 May 2014 14:32:58 +0300
parents d94a69933a71
children
line diff
     1.1 --- a/src/stl/vector.h	Tue Apr 15 20:52:05 2014 +0300
     1.2 +++ b/src/stl/vector.h	Fri May 02 14:32:58 2014 +0300
     1.3 @@ -1,127 +1,127 @@
     1.4 -/* vi:set ft=cpp: */
     1.5 -#ifndef VECTOR_H_
     1.6 -#define VECTOR_H_
     1.7 -
     1.8 -#include <stdlib.h>
     1.9 -
    1.10 -template <class T>
    1.11 -class vector {
    1.12 -private:
    1.13 -	T *data;
    1.14 -	size_t num_items, max_items;
    1.15 -
    1.16 -public:
    1.17 -	vector()
    1.18 -	{
    1.19 -		data = 0;
    1.20 -		num_items = max_items = 0;
    1.21 -	}
    1.22 -
    1.23 -	vector(const vector &v)
    1.24 -	{
    1.25 -		data = 0;
    1.26 -		num_items = max_items = 0;
    1.27 -		resize(v.size());
    1.28 -
    1.29 -		for(size_t i=0; i<v.size(); i++) {
    1.30 -			data[i] = v.data[i];
    1.31 -		}
    1.32 -	}
    1.33 -
    1.34 -	vector &operator =(const vector &v)
    1.35 -	{
    1.36 -		if(&v != this) {
    1.37 -			clear();
    1.38 -			resize(v.size());
    1.39 -
    1.40 -			for(size_t i=0; i<v.size(); i++) {
    1.41 -				data[i] = v.data[i];
    1.42 -			}
    1.43 -		}
    1.44 -		return *this;
    1.45 -	}
    1.46 -
    1.47 -	~vector()
    1.48 -	{
    1.49 -		clear();
    1.50 -	}
    1.51 -
    1.52 -	void clear()
    1.53 -	{
    1.54 -		delete [] data;
    1.55 -		data = 0;
    1.56 -		max_items = num_items = 0;
    1.57 -	}
    1.58 -
    1.59 -	bool empty() const
    1.60 -	{
    1.61 -		return num_items == 0;
    1.62 -	}
    1.63 -
    1.64 -	size_t size() const
    1.65 -	{
    1.66 -		return num_items;
    1.67 -	}
    1.68 -
    1.69 -	void resize(size_t nsz)
    1.70 -	{
    1.71 -		if(nsz > 0) {
    1.72 -			T *newdata = new T[nsz];
    1.73 -			if(!newdata) return;
    1.74 -
    1.75 -			size_t num = num_items < nsz ? num_items : nsz;
    1.76 -			for(size_t i=0; i<num; i++) {
    1.77 -				newdata[i] = data[i];
    1.78 -			}
    1.79 -
    1.80 -			delete [] data;
    1.81 -			data = newdata;
    1.82 -			max_items = nsz;
    1.83 -			num_items = num;
    1.84 -		} else {
    1.85 -			delete [] data;
    1.86 -			max_items = num_items = 0;
    1.87 -		}
    1.88 -	}
    1.89 -
    1.90 -	void push_back(const T &item)
    1.91 -	{
    1.92 -		if(num_items >= max_items) {
    1.93 -			resize(max_items > 0 ? max_items * 2 : 8);
    1.94 -		}
    1.95 -		data[num_items++] = item;
    1.96 -	}
    1.97 -
    1.98 -	void pop_back()
    1.99 -	{
   1.100 -		if(--num_items <= 0) {
   1.101 -			num_items = 0;
   1.102 -		}
   1.103 -
   1.104 -		if(num_items < max_items / 3) {
   1.105 -			resize(max_items / 2);
   1.106 -		}
   1.107 -	}
   1.108 -
   1.109 -	T &back()
   1.110 -	{
   1.111 -		return data[num_items - 1];
   1.112 -	}
   1.113 -
   1.114 -	const T &back() const
   1.115 -	{
   1.116 -		return data[num_items - 1];
   1.117 -	}
   1.118 -
   1.119 -	T &operator [](int idx)
   1.120 -	{
   1.121 -		return data[idx];
   1.122 -	}
   1.123 -
   1.124 -	const T &operator [](int idx) const
   1.125 -	{
   1.126 -		return data[idx];
   1.127 -	}
   1.128 -};
   1.129 -
   1.130 -#endif	// VECTOR_H_
   1.131 +/* vi:set ft=cpp: */
   1.132 +#ifndef VECTOR_H_
   1.133 +#define VECTOR_H_
   1.134 +
   1.135 +#include <stdlib.h>
   1.136 +
   1.137 +template <class T>
   1.138 +class vector {
   1.139 +private:
   1.140 +	T *data;
   1.141 +	size_t num_items, max_items;
   1.142 +
   1.143 +public:
   1.144 +	vector()
   1.145 +	{
   1.146 +		data = 0;
   1.147 +		num_items = max_items = 0;
   1.148 +	}
   1.149 +
   1.150 +	vector(const vector &v)
   1.151 +	{
   1.152 +		data = 0;
   1.153 +		num_items = max_items = 0;
   1.154 +		resize(v.size());
   1.155 +
   1.156 +		for(size_t i=0; i<v.size(); i++) {
   1.157 +			data[i] = v.data[i];
   1.158 +		}
   1.159 +	}
   1.160 +
   1.161 +	vector &operator =(const vector &v)
   1.162 +	{
   1.163 +		if(&v != this) {
   1.164 +			clear();
   1.165 +			resize(v.size());
   1.166 +
   1.167 +			for(size_t i=0; i<v.size(); i++) {
   1.168 +				data[i] = v.data[i];
   1.169 +			}
   1.170 +		}
   1.171 +		return *this;
   1.172 +	}
   1.173 +
   1.174 +	~vector()
   1.175 +	{
   1.176 +		clear();
   1.177 +	}
   1.178 +
   1.179 +	void clear()
   1.180 +	{
   1.181 +		delete [] data;
   1.182 +		data = 0;
   1.183 +		max_items = num_items = 0;
   1.184 +	}
   1.185 +
   1.186 +	bool empty() const
   1.187 +	{
   1.188 +		return num_items == 0;
   1.189 +	}
   1.190 +
   1.191 +	size_t size() const
   1.192 +	{
   1.193 +		return num_items;
   1.194 +	}
   1.195 +
   1.196 +	void resize(size_t nsz)
   1.197 +	{
   1.198 +		if(nsz > 0) {
   1.199 +			T *newdata = new T[nsz];
   1.200 +			if(!newdata) return;
   1.201 +
   1.202 +			size_t num = num_items < nsz ? num_items : nsz;
   1.203 +			for(size_t i=0; i<num; i++) {
   1.204 +				newdata[i] = data[i];
   1.205 +			}
   1.206 +
   1.207 +			delete [] data;
   1.208 +			data = newdata;
   1.209 +			max_items = nsz;
   1.210 +			num_items = num;
   1.211 +		} else {
   1.212 +			delete [] data;
   1.213 +			max_items = num_items = 0;
   1.214 +		}
   1.215 +	}
   1.216 +
   1.217 +	void push_back(const T &item)
   1.218 +	{
   1.219 +		if(num_items >= max_items) {
   1.220 +			resize(max_items > 0 ? max_items * 2 : 8);
   1.221 +		}
   1.222 +		data[num_items++] = item;
   1.223 +	}
   1.224 +
   1.225 +	void pop_back()
   1.226 +	{
   1.227 +		if(--num_items <= 0) {
   1.228 +			num_items = 0;
   1.229 +		}
   1.230 +
   1.231 +		if(num_items < max_items / 3) {
   1.232 +			resize(max_items / 2);
   1.233 +		}
   1.234 +	}
   1.235 +
   1.236 +	T &back()
   1.237 +	{
   1.238 +		return data[num_items - 1];
   1.239 +	}
   1.240 +
   1.241 +	const T &back() const
   1.242 +	{
   1.243 +		return data[num_items - 1];
   1.244 +	}
   1.245 +
   1.246 +	T &operator [](int idx)
   1.247 +	{
   1.248 +		return data[idx];
   1.249 +	}
   1.250 +
   1.251 +	const T &operator [](int idx) const
   1.252 +	{
   1.253 +		return data[idx];
   1.254 +	}
   1.255 +};
   1.256 +
   1.257 +#endif	// VECTOR_H_