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quantize: prevent input/output file collision #18451

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quantize: prevent input/output file collision #18451

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6 changes: 6 additions & 0 deletions tools/quantize/quantize.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
#include <cmath>
#include <cctype>
#include <algorithm>
#include <filesystem>

struct quant_option {
std::string name;
Expand Down Expand Up @@ -643,6 +644,11 @@ int main(int argc, char ** argv) {
return 1;
}

if (std::error_code ec; std::filesystem::equivalent(fname_inp, fname_out, ec)) {
fprintf(stderr, "%s: error: input and output files are the same: '%s'\n", __func__, fname_inp.c_str());
return 1;
}

print_build_info();

fprintf(stderr, "%s: quantizing '%s' to '%s' as %s", __func__, fname_inp.c_str(), fname_out.c_str(), ftype_str.c_str());
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