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#include "strbuf.h"
#include <cstdlib>
#include <cstring>
strbuf::strbuf (const strbuf& other) {
this->alloc = other.len + 1;
this->mem = static_cast<char*>(malloc(this->alloc));
strncpy(this->mem, other.mem, other.len);
}
void strbuf::realloc (size_t len) {
this->mem = static_cast<char*>(std::realloc(this->mem, len));
this->alloc = len;
}
strbuf::~strbuf() {
free (this->mem);
this->mem = NULL;
this->alloc = 0;
this->len = 0;
}
strbuf& strbuf::operator+=(char c) {
if (this->len + 1 > this->alloc) {
this->alloc <<= 1;
this->mem = static_cast<char*> (std::realloc(this->mem, this->alloc));
}
this->mem[this->len] = c;
this->ptr = ++this->len;
return *this;
}
bool strbuf::operator==(strbuf& other) {
return strncmp(this->mem, other.mem, this->len) == 0;
}
bool strbuf::operator==(const char* other) {
std::cerr << __FILE__ << ':' << __LINE__ << ' ' << this->c_str() << "==" << other << std::endl;
return strncmp(this->mem, other, this->len) == 0 ;
}
std::ostream& operator << (std::ostream& out, strbuf& str) {
out << (str.to_string());
return out;
}
// TODO this leaks memmory
char* strbuf::c_str() {
char* buf = static_cast<char*>(malloc(this->len + 1));
memcpy(buf, this->mem, this->len);
buf[this->len] = '\0';
return buf;
}
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