28 static char *salloc(int len, int *sizep);
30 static char *sfree_alloc(char *ptr, int size, int len, int *sizep);
33 static char *salloc(int len, int *sizep)  in salloc()  argument
35   if (len == 0) {  in salloc()
40     return new char[*sizep = len*2];  in salloc()
48 static char *sfree_alloc(char *ptr, int oldsz, int len, int *sizep)  in sfree_alloc()  argument
50   if (oldsz >= len) {  in sfree_alloc()
55   if (len == 0) {  in sfree_alloc()
60     return new char[*sizep = len*2];  in sfree_alloc()
83 string::string() : ptr(0), len(0), sz(0)  in string()
87 string::string(const char *p, int n) : len(n)  in string()
98     len = 0;  in string()
103     len = strlen(p);  in string()
104     ptr = salloc(len, &sz);  in string()
105     memcpy(ptr, p, len);  in string()
109 string::string(char c) : len(1)  in string()
115 string::string(const string &s) : len(s.len)  in string()
117   ptr = salloc(len, &sz);  in string()
118   if (len != 0)  in string()
119     memcpy(ptr, s.ptr, len);  in string()
129   ptr = sfree_alloc(ptr, sz, s.len, &sz);  in operator =()
130   len = s.len;  in operator =()
131   if (len != 0)  in operator =()
132     memcpy(ptr, s.ptr, len);  in operator =()
139     sfree(ptr, len);  in operator =()
140     len = 0;  in operator =()
147     len = slen;  in operator =()
148     memcpy(ptr, p, len);  in operator =()
156   len = 1;  in operator =()
165   len = s.len;  in move()
168   s.len = 0;  in move()
174   ptr = srealloc(ptr, sz, len, len + 1, &sz);  in grow1()
181     int newlen = len + n;  in operator +=()
183       ptr = srealloc(ptr, sz, len, newlen, &sz);  in operator +=()
184     memcpy(ptr + len, p, n);  in operator +=()
185     len = newlen;  in operator +=()
192   if (s.len != 0) {  in operator +=()
193     int newlen = len + s.len;  in operator +=()
195       ptr = srealloc(ptr, sz, len, newlen, &sz);  in operator +=()
196     memcpy(ptr + len, s.ptr, s.len);  in operator +=()
197     len = newlen;  in operator +=()
205     int newlen = len + n;  in append()
207       ptr = srealloc(ptr, sz, len, newlen, &sz);  in append()
208     memcpy(ptr + len, p, n);  in append()
209     len = newlen;  in append()
216   len = n1 + n2;  in string()
217   if (len == 0) {  in string()
222     ptr = salloc(len, &sz);  in string()
235   return (s1.len <= s2.len  in operator <=()
236 	  ? s1.len == 0 || memcmp(s1.ptr, s2.ptr, s1.len) <= 0  in operator <=()
237 	  : s2.len != 0 && memcmp(s1.ptr, s2.ptr, s2.len) < 0);  in operator <=()
242   return (s1.len < s2.len  in operator <()
243 	  ? s1.len == 0 || memcmp(s1.ptr, s2.ptr, s1.len) <= 0  in operator <()
244 	  : s2.len != 0 && memcmp(s1.ptr, s2.ptr, s2.len) < 0);  in operator <()
249   return (s1.len >= s2.len  in operator >=()
250 	  ? s2.len == 0 || memcmp(s1.ptr, s2.ptr, s2.len) >= 0  in operator >=()
251 	  : s1.len != 0 && memcmp(s1.ptr, s2.ptr, s1.len) > 0);  in operator >=()
256   return (s1.len > s2.len  in operator >()
257 	  ? s2.len == 0 || memcmp(s1.ptr, s2.ptr, s2.len) >= 0  in operator >()
258 	  : s1.len != 0 && memcmp(s1.ptr, s2.ptr, s1.len) > 0);  in operator >()
265     ptr = srealloc(ptr, sz, len, i, &sz);  in set_length()
266   len = i;  in set_length()
271   len = 0;  in clear()
276   char *p = ptr ? (char *)memchr(ptr, c, len) : NULL;  in search()
285   int n = len;  in extract()
302   int l = len - 1;  in remove_spaces()
311   if (len - 1 != l) {  in remove_spaces()
313       len = l + 1;  in remove_spaces()
314       char *tmp = new char[len];  in remove_spaces()
315       memcpy(tmp, p, len);  in remove_spaces()
320       len = 0;  in remove_spaces()
331   int len = s.length();  in put_string()  local
333   for (int i = 0; i < len; i++)  in put_string()