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use source filename as destination if destination is empty

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This commit is contained in:
Jon Daniel 2024-03-15 22:10:26 +00:00
parent 8279eb2c94
commit db5808c43a
1 changed files with 6 additions and 6 deletions
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12
examples/dom/gauge_file_copy.cpp
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@ -18,16 +18,16 @@ using namespace std::chrono_literals;
const size_t CPVG_BLOCK_SIZE = (2 << 12) * (2 << 5);
size_t cpvg(const char* src, const char* dst, size_t block_size = CPVG_BLOCK_SIZE)
size_t cpvg(const char* src, const char* dst = "", size_t block_size = CPVG_BLOCK_SIZE)
{
std::filesystem::path psrc(std::filesystem::canonical(src));
std::filesystem::path pdst(std::filesystem::canonical(dst));
std::filesystem::path pdst(std::filesystem::canonical(dst != "" ? dst : psrc.filename()));
std::string reset_position;
if(!exists(psrc) || block_size == 0)
return 0;
if(is_directory(pdst) && (pdst.filename() != psrc.filename()))
if(pdst.empty() || (is_directory(pdst) && (pdst.filename() != psrc.filename())))
pdst /= psrc.filename();
@ -76,13 +76,13 @@ size_t cpvg(const char* src, const char* dst, size_t block_size = CPVG_BLOCK_SIZ
int main(int argc, char** argv)
{
if(argc < 3)
if(argc < 2)
{
fprintf(stderr, "Usage: %s SRC DST [BLK]\n", argv[0]);
fprintf(stderr, "Usage: %s SRC [DST] [BLK]\n", argv[0]);
exit(EXIT_FAILURE);
}
exit(file_size(argv[1]) == cpvg(argv[1], argv[2], argc > 3 ? (size_t)strtouq(argv[3], NULL, 10) : CPVG_BLOCK_SIZE)
exit(file_size(argv[1]) == cpvg(argv[1], argc > 2 ? argv[2] : "", argc > 3 ? (size_t)strtouq(argv[3], NULL, 10) : CPVG_BLOCK_SIZE)
? EXIT_SUCCESS : EXIT_FAILURE);
}