utString utString::substr(const size_type start,
size_type len_orig) const
{
utString s;
size_type len = strlen(p);
if (len_orig == npos)
{
len_orig = len - start;
}
if (start > len)
{
abort();
}
if (len > len_orig)
{
len = len_orig;
}
lmSafeFree(NULL, s.p);
s.p = malloc_never_null(len + 1);
memcpy(s.p, p + start, len);
s.p[len] = '\0';
return s;
}
static char *strdup_never_null(const char *s)
{
const size_t len = strlen(s) + 1;
char *p = malloc_never_null(len);
memcpy(p, s, len);
return p;
}
static char *strdup_never_null(const char *s)
{
const size_t len = (s == NULL ? 0 : strlen(s)) + 1;
char *p = malloc_never_null(len);
if (len > 1) memcpy(p, s, len);
p[len-1] = 0;
return p;
}
/**
* Allocates memory for the copy the string at the same time sets "this->allocated".
* @param s
* @return
*/
char*
String::strdup_never_null(const char* s)
{
const size_t len = strlen(s)+1;
char *p2 = malloc_never_null(len);
memcpy(p2, s, len);
allocated_=len;
size_=len-1;
return p2;
}
String::String(const String& s)
: p(0)
{
if( &s != NULL ){
p = malloc_never_null( s.size_ + 1 ); // copy only used part
allocated_ = s.size_ + 1;
size_ = s.size_;
memcpy(p, s.p, size_ + 1);
}
_return_value = '\0';
}
