stl.cpp

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00043 
00044 
00045 #include "precomp.hpp"
00046 
00047 char* cv::String::allocate(size_t len)
00048 {
00049     size_t totalsize = alignSize(len + 1, (int)sizeof(int));
00050     int* data = (int*)cv::fastMalloc(totalsize + sizeof(int));
00051     data[0] = 1;
00052     cstr_ = (char*)(data + 1);
00053     len_ = len;
00054     cstr_[len] = 0;
00055     return cstr_;
00056 }
00057 
00058 
00059 void cv::String::deallocate()
00060 {
00061     int* data = (int*)cstr_;
00062     len_ = 0;
00063     cstr_ = 0;
00064 
00065     if(data && 1 == CV_XADD(data-1, -1))
00066     {
00067         cv::fastFree(data-1);
00068     }
00069 }
00070