root/modules/core/src/stl.cpp

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DEFINITIONS

This source file includes following definitions.
  1. allocate
  2. deallocate

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#include "precomp.hpp"

char* cv::String::allocate(size_t len)
{
    size_t totalsize = alignSize(len + 1, (int)sizeof(int));
    int* data = (int*)cv::fastMalloc(totalsize + sizeof(int));
    data[0] = 1;
    cstr_ = (char*)(data + 1);
    len_ = len;
    cstr_[len] = 0;
    return cstr_;
}


void cv::String::deallocate()
{
    int* data = (int*)cstr_;
    len_ = 0;
    cstr_ = 0;

    if(data && 1 == CV_XADD(data-1, -1))
    {
        cv::fastFree(data-1);
    }
}

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