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Have classes contain only a single private member of type PointerHolder<Members>. This makes it safe to change the structure of the Members class without breaking binary compatibility. Many of the classes already follow this pattern quite successfully. This brings in the rest of the class that are part of the public API.
111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
#include <qpdf/Pl_Buffer.hh>
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#include <qpdf/Pl_Count.hh>
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#include <qpdf/Pl_Discard.hh>
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#include <qpdf/QUtil.hh>
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#include <stdlib.h>
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#include <stdexcept>
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#include <iostream>
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#include <cassert>
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static unsigned char* uc(char const* s)
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{
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return QUtil::unsigned_char_pointer(s);
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}
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int main()
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{
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{
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// Test that buffers can be copied by value.
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Buffer bc1(2);
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unsigned char* bc1p = bc1.getBuffer();
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bc1p[0] = 'Q';
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bc1p[1] = 'W';
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Buffer bc2(bc1);
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bc1p[0] = 'R';
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unsigned char* bc2p = bc2.getBuffer();
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assert(bc2p != bc1p);
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assert(bc2p[0] == 'Q');
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assert(bc2p[1] == 'W');
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bc2 = bc1;
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bc2p = bc2.getBuffer();
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assert(bc2p != bc1p);
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assert(bc2p[0] == 'R');
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assert(bc2p[1] == 'W');
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}
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try
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{
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Pl_Discard discard;
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Pl_Count count("count", &discard);
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Pl_Buffer bp1("bp1", &count);
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bp1.write(uc("12345"), 5);
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bp1.write(uc("67890"), 5);
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bp1.finish();
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std::cout << "count: " << count.getCount() << std::endl;
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bp1.write(uc("abcde"), 5);
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bp1.write(uc("fghij"), 6);
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bp1.finish();
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std::cout << "count: " << count.getCount() << std::endl;
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Buffer* b = bp1.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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std::cout << "data: " << b->getBuffer() << std::endl;
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delete b;
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bp1.write(uc("qwert"), 5);
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bp1.write(uc("yuiop"), 6);
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bp1.finish();
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std::cout << "count: " << count.getCount() << std::endl;
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b = bp1.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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std::cout << "data: " << b->getBuffer() << std::endl;
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delete b;
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Pl_Buffer bp2("bp2");
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bp2.write(uc("moo"), 3);
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bp2.write(uc("quack"), 6);
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try
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{
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delete bp2.getBuffer();
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}
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catch (std::exception& e)
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{
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std::cout << e.what() << std::endl;
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}
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bp2.finish();
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b = bp2.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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std::cout << "data: " << b->getBuffer() << std::endl;
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delete b;
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unsigned char lbuf[10];
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Buffer b1(lbuf, 10);
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if (! ((b1.getBuffer() == lbuf) &&
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(b1.getSize() == 10)))
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{
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throw std::logic_error("hand-created buffer is not as expected");
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}
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Pl_Buffer bp3("bp3");
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b = bp3.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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delete b;
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// Should be able to call getBuffer again and get an empty buffer
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b = bp3.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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delete b;
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// Also can write 0 and do it.
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bp3.write(uc(""), 0);
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bp3.finish();
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b = bp3.getBuffer();
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std::cout << "size: " << b->getSize() << std::endl;
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delete b;
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}
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catch (std::exception& e)
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{
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std::cout << "unexpected exception: " << e.what() << std::endl;
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exit(2);
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}
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std::cout << "done" << std::endl;
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return 0;
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}
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