583 lines
20 KiB
C++
583 lines
20 KiB
C++
#ifndef C4_DUMP_HPP_
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#define C4_DUMP_HPP_
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#include <c4/substr.hpp>
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namespace c4 {
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C4_SUPPRESS_WARNING_GCC_CLANG_WITH_PUSH("-Wold-style-cast")
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/** type of the function to dump characters */
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using DumperPfn = void (*)(csubstr buf);
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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template<DumperPfn dumpfn, class Arg>
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inline size_t dump(substr buf, Arg const& a)
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{
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size_t sz = to_chars(buf, a); // need to serialize to the buffer
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if(C4_LIKELY(sz <= buf.len))
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dumpfn(buf.first(sz));
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return sz;
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}
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template<class DumperFn, class Arg>
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inline size_t dump(DumperFn &&dumpfn, substr buf, Arg const& a)
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{
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size_t sz = to_chars(buf, a); // need to serialize to the buffer
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if(C4_LIKELY(sz <= buf.len))
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dumpfn(buf.first(sz));
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return sz;
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}
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template<DumperPfn dumpfn>
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inline size_t dump(substr buf, csubstr a)
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{
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if(buf.len)
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dumpfn(a); // dump directly, no need to serialize to the buffer
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return 0; // no space was used in the buffer
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}
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template<class DumperFn>
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inline size_t dump(DumperFn &&dumpfn, substr buf, csubstr a)
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{
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if(buf.len)
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dumpfn(a); // dump directly, no need to serialize to the buffer
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return 0; // no space was used in the buffer
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}
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template<DumperPfn dumpfn, size_t N>
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inline size_t dump(substr buf, const char (&a)[N])
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{
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if(buf.len)
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dumpfn(csubstr(a)); // dump directly, no need to serialize to the buffer
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return 0; // no space was used in the buffer
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}
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template<class DumperFn, size_t N>
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inline size_t dump(DumperFn &&dumpfn, substr buf, const char (&a)[N])
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{
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if(buf.len)
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dumpfn(csubstr(a)); // dump directly, no need to serialize to the buffer
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return 0; // no space was used in the buffer
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/** */
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struct DumpResults
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{
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enum : size_t { noarg = (size_t)-1 };
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size_t bufsize = 0;
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size_t lastok = noarg;
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bool success_until(size_t expected) const { return lastok == noarg ? false : lastok >= expected; }
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bool write_arg(size_t arg) const { return lastok == noarg || arg > lastok; }
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size_t argfail() const { return lastok + 1; }
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};
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/// @cond dev
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// terminates the variadic recursion
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template<class DumperFn>
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size_t cat_dump(DumperFn &&, substr)
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{
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return 0;
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}
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// terminates the variadic recursion
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template<DumperPfn dumpfn>
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size_t cat_dump(substr)
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{
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return 0;
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}
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/// @endcond
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/** take the function pointer as a function argument */
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template<class DumperFn, class Arg, class... Args>
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size_t cat_dump(DumperFn &&dumpfn, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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size_t size_for_a = dump(dumpfn, buf, a);
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if(C4_UNLIKELY(size_for_a > buf.len))
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buf = buf.first(0); // ensure no more calls
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size_t size_for_more = cat_dump(dumpfn, buf, more...);
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return size_for_more > size_for_a ? size_for_more : size_for_a;
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}
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/** take the function pointer as a template argument */
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template<DumperPfn dumpfn,class Arg, class... Args>
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size_t cat_dump(substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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size_t size_for_a = dump<dumpfn>(buf, a);
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if(C4_LIKELY(size_for_a > buf.len))
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buf = buf.first(0); // ensure no more calls
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size_t size_for_more = cat_dump<dumpfn>(buf, more...);
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return size_for_more > size_for_a ? size_for_more : size_for_a;
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/// @cond dev
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namespace detail {
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// terminates the variadic recursion
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template<DumperPfn dumpfn, class Arg>
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DumpResults cat_dump_resume(size_t currarg, DumpResults results, substr buf, Arg const& C4_RESTRICT a)
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{
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if(C4_LIKELY(results.write_arg(currarg)))
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{
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size_t sz = dump<dumpfn>(buf, a); // yield to the specialized function
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if(currarg == results.lastok + 1 && sz <= buf.len)
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results.lastok = currarg;
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results.bufsize = sz > results.bufsize ? sz : results.bufsize;
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}
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return results;
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}
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// terminates the variadic recursion
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template<class DumperFn, class Arg>
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DumpResults cat_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults results, substr buf, Arg const& C4_RESTRICT a)
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{
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if(C4_LIKELY(results.write_arg(currarg)))
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{
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size_t sz = dump(dumpfn, buf, a); // yield to the specialized function
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if(currarg == results.lastok + 1 && sz <= buf.len)
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results.lastok = currarg;
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results.bufsize = sz > results.bufsize ? sz : results.bufsize;
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}
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return results;
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}
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template<DumperPfn dumpfn, class Arg, class... Args>
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DumpResults cat_dump_resume(size_t currarg, DumpResults results, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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results = detail::cat_dump_resume<dumpfn>(currarg, results, buf, a);
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return detail::cat_dump_resume<dumpfn>(currarg + 1u, results, buf, more...);
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}
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template<class DumperFn, class Arg, class... Args>
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DumpResults cat_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults results, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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results = detail::cat_dump_resume(currarg, dumpfn, results, buf, a);
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return detail::cat_dump_resume(currarg + 1u, dumpfn, results, buf, more...);
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}
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} // namespace detail
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/// @endcond
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template<DumperPfn dumpfn, class Arg, class... Args>
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C4_ALWAYS_INLINE DumpResults cat_dump_resume(DumpResults results, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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if(results.bufsize > buf.len)
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return results;
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return detail::cat_dump_resume<dumpfn>(0u, results, buf, a, more...);
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}
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template<class DumperFn, class Arg, class... Args>
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C4_ALWAYS_INLINE DumpResults cat_dump_resume(DumperFn &&dumpfn, DumpResults results, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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if(results.bufsize > buf.len)
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return results;
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return detail::cat_dump_resume(0u, dumpfn, results, buf, a, more...);
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}
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template<DumperPfn dumpfn, class Arg, class... Args>
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C4_ALWAYS_INLINE DumpResults cat_dump_resume(substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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return detail::cat_dump_resume<dumpfn>(0u, DumpResults{}, buf, a, more...);
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}
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template<class DumperFn, class Arg, class... Args>
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C4_ALWAYS_INLINE DumpResults cat_dump_resume(DumperFn &&dumpfn, substr buf, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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return detail::cat_dump_resume(0u, dumpfn, DumpResults{}, buf, a, more...);
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/// @cond dev
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// terminate the recursion
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template<class DumperFn, class Sep>
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size_t catsep_dump(DumperFn &&, substr, Sep const& C4_RESTRICT)
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{
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return 0;
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}
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// terminate the recursion
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template<DumperPfn dumpfn, class Sep>
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size_t catsep_dump(substr, Sep const& C4_RESTRICT)
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{
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return 0;
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}
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/// @endcond
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/** take the function pointer as a function argument */
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template<class DumperFn, class Sep, class Arg, class... Args>
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size_t catsep_dump(DumperFn &&dumpfn, substr buf, Sep const& C4_RESTRICT sep, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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size_t sz = dump(dumpfn, buf, a);
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if(C4_UNLIKELY(sz > buf.len))
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buf = buf.first(0); // ensure no more calls
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if C4_IF_CONSTEXPR (sizeof...(more) > 0)
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{
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size_t szsep = dump(dumpfn, buf, sep);
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if(C4_UNLIKELY(szsep > buf.len))
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buf = buf.first(0); // ensure no more calls
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sz = sz > szsep ? sz : szsep;
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}
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size_t size_for_more = catsep_dump(dumpfn, buf, sep, more...);
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return size_for_more > sz ? size_for_more : sz;
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}
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/** take the function pointer as a template argument */
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template<DumperPfn dumpfn, class Sep, class Arg, class... Args>
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size_t catsep_dump(substr buf, Sep const& C4_RESTRICT sep, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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size_t sz = dump<dumpfn>(buf, a);
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if(C4_UNLIKELY(sz > buf.len))
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buf = buf.first(0); // ensure no more calls
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if C4_IF_CONSTEXPR (sizeof...(more) > 0)
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{
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size_t szsep = dump<dumpfn>(buf, sep);
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if(C4_UNLIKELY(szsep > buf.len))
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buf = buf.first(0); // ensure no more calls
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sz = sz > szsep ? sz : szsep;
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}
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size_t size_for_more = catsep_dump<dumpfn>(buf, sep, more...);
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return size_for_more > sz ? size_for_more : sz;
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/// @cond dev
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namespace detail {
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template<DumperPfn dumpfn, class Arg>
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void catsep_dump_resume_(size_t currarg, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Arg const& C4_RESTRICT a)
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{
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if(C4_LIKELY(results->write_arg(currarg)))
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{
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size_t sz = dump<dumpfn>(*buf, a);
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results->bufsize = sz > results->bufsize ? sz : results->bufsize;
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if(C4_LIKELY(sz <= buf->len))
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results->lastok = currarg;
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else
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buf->len = 0;
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}
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}
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template<class DumperFn, class Arg>
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void catsep_dump_resume_(size_t currarg, DumperFn &&dumpfn, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Arg const& C4_RESTRICT a)
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{
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if(C4_LIKELY(results->write_arg(currarg)))
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{
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size_t sz = dump(dumpfn, *buf, a);
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results->bufsize = sz > results->bufsize ? sz : results->bufsize;
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if(C4_LIKELY(sz <= buf->len))
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results->lastok = currarg;
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else
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buf->len = 0;
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}
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}
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template<DumperPfn dumpfn, class Sep, class Arg>
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C4_ALWAYS_INLINE void catsep_dump_resume(size_t currarg, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Sep const& C4_RESTRICT, Arg const& C4_RESTRICT a)
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{
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detail::catsep_dump_resume_<dumpfn>(currarg, results, buf, a);
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}
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template<class DumperFn, class Sep, class Arg>
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C4_ALWAYS_INLINE void catsep_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Sep const& C4_RESTRICT, Arg const& C4_RESTRICT a)
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{
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detail::catsep_dump_resume_(currarg, dumpfn, results, buf, a);
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}
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template<DumperPfn dumpfn, class Sep, class Arg, class... Args>
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C4_ALWAYS_INLINE void catsep_dump_resume(size_t currarg, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Sep const& C4_RESTRICT sep, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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detail::catsep_dump_resume_<dumpfn>(currarg , results, buf, a);
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detail::catsep_dump_resume_<dumpfn>(currarg + 1u, results, buf, sep);
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detail::catsep_dump_resume <dumpfn>(currarg + 2u, results, buf, sep, more...);
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}
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template<class DumperFn, class Sep, class Arg, class... Args>
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C4_ALWAYS_INLINE void catsep_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults *C4_RESTRICT results, substr *C4_RESTRICT buf, Sep const& C4_RESTRICT sep, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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detail::catsep_dump_resume_(currarg , dumpfn, results, buf, a);
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detail::catsep_dump_resume_(currarg + 1u, dumpfn, results, buf, sep);
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detail::catsep_dump_resume (currarg + 2u, dumpfn, results, buf, sep, more...);
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}
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} // namespace detail
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/// @endcond
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template<DumperPfn dumpfn, class Sep, class... Args>
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C4_ALWAYS_INLINE DumpResults catsep_dump_resume(DumpResults results, substr buf, Sep const& C4_RESTRICT sep, Args const& C4_RESTRICT ...more)
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{
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detail::catsep_dump_resume<dumpfn>(0u, &results, &buf, sep, more...);
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return results;
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}
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template<class DumperFn, class Sep, class... Args>
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C4_ALWAYS_INLINE DumpResults catsep_dump_resume(DumperFn &&dumpfn, DumpResults results, substr buf, Sep const& C4_RESTRICT sep, Args const& C4_RESTRICT ...more)
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{
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detail::catsep_dump_resume(0u, dumpfn, &results, &buf, sep, more...);
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return results;
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}
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template<DumperPfn dumpfn, class Sep, class... Args>
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C4_ALWAYS_INLINE DumpResults catsep_dump_resume(substr buf, Sep const& C4_RESTRICT sep, Args const& C4_RESTRICT ...more)
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{
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DumpResults results;
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detail::catsep_dump_resume<dumpfn>(0u, &results, &buf, sep, more...);
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return results;
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}
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template<class DumperFn, class Sep, class... Args>
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C4_ALWAYS_INLINE DumpResults catsep_dump_resume(DumperFn &&dumpfn, substr buf, Sep const& C4_RESTRICT sep, Args const& C4_RESTRICT ...more)
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{
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DumpResults results;
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detail::catsep_dump_resume(0u, dumpfn, &results, &buf, sep, more...);
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return results;
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/** take the function pointer as a function argument */
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template<class DumperFn>
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C4_ALWAYS_INLINE size_t format_dump(DumperFn &&dumpfn, substr buf, csubstr fmt)
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{
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// we can dump without using buf
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// but we'll only dump if the buffer is ok
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if(C4_LIKELY(buf.len > 0 && fmt.len))
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dumpfn(fmt);
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return 0u;
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}
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/** take the function pointer as a function argument */
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template<DumperPfn dumpfn>
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C4_ALWAYS_INLINE size_t format_dump(substr buf, csubstr fmt)
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{
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// we can dump without using buf
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// but we'll only dump if the buffer is ok
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if(C4_LIKELY(buf.len > 0 && fmt.len > 0))
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dumpfn(fmt);
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return 0u;
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}
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/** take the function pointer as a function argument */
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template<class DumperFn, class Arg, class... Args>
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size_t format_dump(DumperFn &&dumpfn, substr buf, csubstr fmt, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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// we can dump without using buf
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// but we'll only dump if the buffer is ok
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size_t pos = fmt.find("{}"); // @todo use _find_fmt()
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if(C4_UNLIKELY(pos == csubstr::npos))
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{
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if(C4_LIKELY(buf.len > 0 && fmt.len > 0))
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dumpfn(fmt);
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return 0u;
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}
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if(C4_LIKELY(buf.len > 0 && pos > 0))
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dumpfn(fmt.first(pos)); // we can dump without using buf
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fmt = fmt.sub(pos + 2); // skip {} do this before assigning to pos again
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pos = dump(dumpfn, buf, a);
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if(C4_UNLIKELY(pos > buf.len))
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buf.len = 0; // ensure no more calls to dump
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size_t size_for_more = format_dump(dumpfn, buf, fmt, more...);
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return size_for_more > pos ? size_for_more : pos;
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}
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/** take the function pointer as a template argument */
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template<DumperPfn dumpfn, class Arg, class... Args>
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size_t format_dump(substr buf, csubstr fmt, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
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{
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// we can dump without using buf
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// but we'll only dump if the buffer is ok
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size_t pos = fmt.find("{}"); // @todo use _find_fmt()
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if(C4_UNLIKELY(pos == csubstr::npos))
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{
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if(C4_LIKELY(buf.len > 0 && fmt.len > 0))
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dumpfn(fmt);
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return 0u;
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}
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if(C4_LIKELY(buf.len > 0 && pos > 0))
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dumpfn(fmt.first(pos)); // we can dump without using buf
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fmt = fmt.sub(pos + 2); // skip {} do this before assigning to pos again
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pos = dump<dumpfn>(buf, a);
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if(C4_UNLIKELY(pos > buf.len))
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buf.len = 0; // ensure no more calls to dump
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size_t size_for_more = format_dump<dumpfn>(buf, fmt, more...);
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return size_for_more > pos ? size_for_more : pos;
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}
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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/// @cond dev
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namespace detail {
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template<DumperPfn dumpfn>
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DumpResults format_dump_resume(size_t currarg, DumpResults results, substr buf, csubstr fmt)
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{
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// we can dump without using buf
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// but we'll only dump if the buffer is ok
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if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
dumpfn(fmt);
|
|
results.lastok = currarg;
|
|
}
|
|
return results;
|
|
}
|
|
|
|
template<class DumperFn>
|
|
DumpResults format_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults results, substr buf, csubstr fmt)
|
|
{
|
|
// we can dump without using buf
|
|
// but we'll only dump if the buffer is ok
|
|
if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
dumpfn(fmt);
|
|
results.lastok = currarg;
|
|
}
|
|
return results;
|
|
}
|
|
|
|
template<DumperPfn dumpfn, class Arg, class... Args>
|
|
DumpResults format_dump_resume(size_t currarg, DumpResults results, substr buf, csubstr fmt, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
|
|
{
|
|
// we need to process the format even if we're not
|
|
// going to print the first arguments because we're resuming
|
|
size_t pos = fmt.find("{}"); // @todo use _find_fmt()
|
|
// we can dump without using buf
|
|
// but we'll only dump if the buffer is ok
|
|
if(C4_LIKELY(results.write_arg(currarg)))
|
|
{
|
|
if(C4_UNLIKELY(pos == csubstr::npos))
|
|
{
|
|
if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
results.lastok = currarg;
|
|
dumpfn(fmt);
|
|
}
|
|
return results;
|
|
}
|
|
if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
results.lastok = currarg;
|
|
dumpfn(fmt.first(pos));
|
|
}
|
|
}
|
|
fmt = fmt.sub(pos + 2);
|
|
if(C4_LIKELY(results.write_arg(currarg + 1)))
|
|
{
|
|
pos = dump<dumpfn>(buf, a);
|
|
results.bufsize = pos > results.bufsize ? pos : results.bufsize;
|
|
if(C4_LIKELY(pos <= buf.len))
|
|
results.lastok = currarg + 1;
|
|
else
|
|
buf.len = 0;
|
|
}
|
|
return detail::format_dump_resume<dumpfn>(currarg + 2u, results, buf, fmt, more...);
|
|
}
|
|
/// @endcond
|
|
|
|
|
|
template<class DumperFn, class Arg, class... Args>
|
|
DumpResults format_dump_resume(size_t currarg, DumperFn &&dumpfn, DumpResults results, substr buf, csubstr fmt, Arg const& C4_RESTRICT a, Args const& C4_RESTRICT ...more)
|
|
{
|
|
// we need to process the format even if we're not
|
|
// going to print the first arguments because we're resuming
|
|
size_t pos = fmt.find("{}"); // @todo use _find_fmt()
|
|
// we can dump without using buf
|
|
// but we'll only dump if the buffer is ok
|
|
if(C4_LIKELY(results.write_arg(currarg)))
|
|
{
|
|
if(C4_UNLIKELY(pos == csubstr::npos))
|
|
{
|
|
if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
results.lastok = currarg;
|
|
dumpfn(fmt);
|
|
}
|
|
return results;
|
|
}
|
|
if(C4_LIKELY(buf.len > 0))
|
|
{
|
|
results.lastok = currarg;
|
|
dumpfn(fmt.first(pos));
|
|
}
|
|
}
|
|
fmt = fmt.sub(pos + 2);
|
|
if(C4_LIKELY(results.write_arg(currarg + 1)))
|
|
{
|
|
pos = dump(dumpfn, buf, a);
|
|
results.bufsize = pos > results.bufsize ? pos : results.bufsize;
|
|
if(C4_LIKELY(pos <= buf.len))
|
|
results.lastok = currarg + 1;
|
|
else
|
|
buf.len = 0;
|
|
}
|
|
return detail::format_dump_resume(currarg + 2u, dumpfn, results, buf, fmt, more...);
|
|
}
|
|
} // namespace detail
|
|
|
|
|
|
template<DumperPfn dumpfn, class... Args>
|
|
C4_ALWAYS_INLINE DumpResults format_dump_resume(DumpResults results, substr buf, csubstr fmt, Args const& C4_RESTRICT ...more)
|
|
{
|
|
return detail::format_dump_resume<dumpfn>(0u, results, buf, fmt, more...);
|
|
}
|
|
|
|
template<class DumperFn, class... Args>
|
|
C4_ALWAYS_INLINE DumpResults format_dump_resume(DumperFn &&dumpfn, DumpResults results, substr buf, csubstr fmt, Args const& C4_RESTRICT ...more)
|
|
{
|
|
return detail::format_dump_resume(0u, dumpfn, results, buf, fmt, more...);
|
|
}
|
|
|
|
|
|
template<DumperPfn dumpfn, class... Args>
|
|
C4_ALWAYS_INLINE DumpResults format_dump_resume(substr buf, csubstr fmt, Args const& C4_RESTRICT ...more)
|
|
{
|
|
return detail::format_dump_resume<dumpfn>(0u, DumpResults{}, buf, fmt, more...);
|
|
}
|
|
|
|
template<class DumperFn, class... Args>
|
|
C4_ALWAYS_INLINE DumpResults format_dump_resume(DumperFn &&dumpfn, substr buf, csubstr fmt, Args const& C4_RESTRICT ...more)
|
|
{
|
|
return detail::format_dump_resume(0u, dumpfn, DumpResults{}, buf, fmt, more...);
|
|
}
|
|
|
|
C4_SUPPRESS_WARNING_GCC_CLANG_POP
|
|
|
|
} // namespace c4
|
|
|
|
|
|
#endif /* C4_DUMP_HPP_ */
|