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82 lines
1.7 KiB
82 lines
1.7 KiB
#pragma once
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#include "types.h"
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#include <cstdio>
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#include <string>
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#include <limits>
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#include <cstring>
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template <class ...Types>
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std::string generate_printf_string(const char* sep = " ", const char* end = "\n") {
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std::string str;
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((str += types::printf_str[types::Types<value_type_r<Types>>::getType()], str += sep), ...);
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const auto trim = str.size() - strlen(sep);
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if (trim > 0)
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str.resize(trim);
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str += end;
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return str;
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}
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template<class T>
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inline decltype(auto) print_hook(const T& v){
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return v;
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}
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template<>
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inline decltype(auto) print_hook<bool>(const bool& v) {
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return v? "true" : "false";
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}
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#ifdef __SIZEOF_INT128__
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constexpr struct __int128__struct{
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uint64_t low, high;
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// constexpr bool operator==(__int128_t x) const{
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// return (x>>64) == high and (x&0xffffffffffffffffull) == low;
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// }
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bool operator==(__int128_t x) const{
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return *((const __int128_t*) this) == x;
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}
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}__int128_max_v = {0x0000000000000000ull, 0x8000000000000000ull};
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inline const char* get_int128str(__int128_t v, char* buf){
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bool neg = false;
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if (v < 0) {
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if(__int128_max_v == v)
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return "-170141183460469231731687303715884105728";
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v = -v;
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neg = true;
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}
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do {
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*--buf = v%10 + '0';
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v /= 10;
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} while(v);
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if (neg) *--buf = '-';
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return buf;
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}
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inline const char* get_uint128str(__uint128_t v, char* buf){
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do {
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*--buf = v%10 + '0';
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v /= 10;
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} while(v);
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return buf;
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}
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extern char* gbuf;
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void setgbuf(char* buf = 0);
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template<>
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inline decltype(auto) print_hook<__int128_t>(const __int128_t& v) {
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*(gbuf+=40) = 0;
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return get_int128str(v, gbuf++);
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}
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template<>
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inline decltype(auto) print_hook<__uint128_t>(const __uint128_t& v) {
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*(gbuf+=40) = 0;
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return get_uint128str(v, gbuf++);
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}
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#else
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#define setgbuf()
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#endif
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