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toolbox.cpp : thousand_sep now supports negative integers && added doxygen

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saundersp
2025-08-24 18:54:04 +02:00
parent 7836efb637
commit cb53d0bd3d
2 changed files with 127 additions and 77 deletions
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200
toolbox.cpp
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@@ -131,94 +131,144 @@ namespace asp {
return ss;
}
struct separate_thousands : std::numpunct<char> {
char sep_;
separate_thousands(const char sep) noexcept : sep_(sep) {}
char_type do_thousands_sep() const override { return sep_; } // separate with commas
string_type do_grouping() const override { return "\3"; } // groups of 3 digit
};
/**
* @brief Format a given integer with a given seperator for each thousands.
*
* @param k Integer
* @param sep Thousand seperator
* @return Formatted integer
*/
std::string thousand_sep(const int64_t k, const char sep) noexcept {
std::ostringstream out;
out.imbue(std::locale(out.getloc(), new separate_thousands(sep)));
out << k;
return out.str();
}
/**
* @brief Format a given integer with ',' for each thousands.
*
* @param k Integer
* @return Formatted integer
*/
std::string thousand_sep(const int64_t k) noexcept {
return thousand_sep(k, ',');
}
/**
* @brief Run some unitary tests on format functions
*
*/
void toolbox_unit_test(void) noexcept {
assert(std::string("0B") == format_byte_size(u64(0)));
assert(std::string("1B") == format_byte_size(u64(1)));
assert(std::string("1KB") == format_byte_size(u64(1) << 10));
assert(std::string("1MB") == format_byte_size(u64(1) << 20));
assert(std::string("1GB") == format_byte_size(u64(1) << 30));
assert(std::string("0B") == format_byte_size(0));
assert(std::string("1B") == format_byte_size(1));
assert(std::string("1KB") == format_byte_size(1 << 10));
assert(std::string("1MB") == format_byte_size(1 << 20));
assert(std::string("1GB") == format_byte_size(1 << 30));
assert(std::string("1TB") == format_byte_size(u64(1) << 40));
assert(std::string("1PB") == format_byte_size(u64(1) << 50));
assert(std::string("1EB") == format_byte_size(u64(1) << 60));
// uint64_t_MAX == 2**64 == 18446744073709551615 == -1
assert(std::string("15EB 1023PB 1023TB 1023GB 1023MB 1023KB 1023B") == format_byte_size(u64(-1)));
assert(std::string("15EB 1023PB 1023TB 1023GB 1023MB 1023KB 1023B") == format_byte_size(std::numeric_limits<uint64_t>::max()));
assert(std::string("15EB 1023PB 1023TB 1023GB 1023MB 1023KB 1023B") == format_byte_size(18446744073709551615ull));
assert(std::string("10EB 1000PB 1000TB 1000GB 1000MB 1000KB 1000B") == format_byte_size(12656215539330294760ull));
// https://en.wikipedia.org/wiki/Unit_of_time
assert(std::string("0ns") == format_time_ns(u64(0)));
assert(std::string("1ns") == format_time_ns(u64(1)));
assert(std::string("10ns") == format_time_ns(u64(10)));
assert(std::string("1us") == format_time_ns(u64(1e3)));
assert(std::string("1ms") == format_time_ns(u64(1e6)));
assert(std::string("10ms") == format_time_ns(u64(1e7)));
assert(std::string("100ms") == format_time_ns(u64(1e8)));
assert(std::string("1s") == format_time_ns(u64(1e9)));
assert(std::string("10s") == format_time_ns(u64(1e10)));
assert(std::string("1m") == format_time_ns(u64(6e10)));
assert(std::string("1m 26s 400ms") == format_time_ns(u64(864e8)));
assert(std::string("1m 40s") == format_time_ns(u64(1e11)));
assert(std::string("16m 40s") == format_time_ns(u64(1e12)));
assert(std::string("1h") == format_time_ns(u64(36e11)));
assert(std::string("1j") == format_time_ns(u64(864e11)));
assert(std::string("1w") == format_time_ns(u64(6048e11)));
assert(std::string("1w 4j 13h 46m 40s") == format_time_ns(u64(1e15)));
assert(std::string("2w") == format_time_ns(u64(12096e11)));
assert(std::string("3w 6j 5h 5m 35s 800ms") == format_time_ns(u64(23511358e8)));
assert(std::string("3w 6j 7h 43m 4s 700ms") == format_time_ns(u64(23605847e8)));
assert(std::string("3w 6j 7h 43m 11s 600ms") == format_time_ns(u64(23605916e8)));
assert(std::string("3w 6j 13h 18m 33s 200ms") == format_time_ns(u64(23807132e8)));
assert(std::string("4w 1j 12h 44m 2s 900ms") == format_time_ns(u64(25514429e8)));
assert(std::string("1M") == format_time_ns(u64(26298e11)));
assert(std::string("1M 1w 2j 13h 30m") == format_time_ns(u64(3456e12)));
assert(std::string("4M 4j 6h") == format_time_ns(u64(108864e11)));
assert(std::string("11M 2w 5j 13h 22m 48s") == format_time_ns(u64(30617568e9)));
assert(std::string("11M 4w 2j 4h 30m") == format_time_ns(u64(31536e12)));
assert(std::string("1y") == format_time_ns(u64(315576e11)));
assert(std::string("11M 4w 2j 10h 18m 45s") == format_time_ns(u64(31556925e9)));
assert(std::string("11M 4w 2j 10h 19m 12s") == format_time_ns(u64(31556952e9)));
assert(std::string("1y 9m 9s") == format_time_ns(u64(31558149e9)));
assert(std::string("1y 18h") == format_time_ns(u64(316224e11)));
assert(std::string("4y") == format_time_ns(u64(1262304e11)));
assert(std::string("5y") == format_time_ns(u64(157788e12)));
assert(std::string("10y") == format_time_ns(u64(315576e12)));
assert(std::string("15y") == format_time_ns(u64(473364e12)));
assert(std::string("20y") == format_time_ns(u64(631152e12)));
assert(std::string("31y 8M 1w 19h 46m 40s") == format_time_ns(u64(1e18)));
assert(std::string("50y") == format_time_ns(u64(157788e13)));
assert(std::string("1c") == format_time_ns(u64(315576e13)));
// uint64_t_MAX == 2**64 == 18446744073709551615 == -1
assert(std::string("5c 84y 6M 2w 1j 8h 34m 33s 709ms 551us 615ns") == format_time_ns(u64(-1)));
assert(std::string("0ns") == format_time_ns(0));
assert(std::string("1ns") == format_time_ns(1));
assert(std::string("10ns") == format_time_ns(10));
assert(std::string("1us") == format_time_ns(1e3));
assert(std::string("1ms") == format_time_ns(1e6));
assert(std::string("10ms") == format_time_ns(1e7));
assert(std::string("100ms") == format_time_ns(1e8));
assert(std::string("1s") == format_time_ns(1e9));
assert(std::string("10s") == format_time_ns(1e10));
assert(std::string("1m") == format_time_ns(6e10));
assert(std::string("1m 26s 400ms") == format_time_ns(864e8));
assert(std::string("1m 40s") == format_time_ns(1e11));
assert(std::string("16m 40s") == format_time_ns(1e12));
assert(std::string("1h") == format_time_ns(36e11));
assert(std::string("1j") == format_time_ns(864e11));
assert(std::string("1w") == format_time_ns(6048e11));
assert(std::string("1w 4j 13h 46m 40s") == format_time_ns(1e15));
assert(std::string("2w") == format_time_ns(12096e11));
assert(std::string("3w 6j 5h 5m 35s 800ms") == format_time_ns(23511358e8));
assert(std::string("3w 6j 7h 43m 4s 700ms") == format_time_ns(23605847e8));
assert(std::string("3w 6j 7h 43m 11s 600ms") == format_time_ns(23605916e8));
assert(std::string("3w 6j 13h 18m 33s 200ms") == format_time_ns(23807132e8));
assert(std::string("4w 1j 12h 44m 2s 900ms") == format_time_ns(25514429e8));
assert(std::string("1M") == format_time_ns(26298e11));
assert(std::string("1M 1w 2j 13h 30m") == format_time_ns(3456e12));
assert(std::string("4M 4j 6h") == format_time_ns(108864e11));
assert(std::string("11M 2w 5j 13h 22m 48s") == format_time_ns(30617568e9));
assert(std::string("11M 4w 2j 4h 30m") == format_time_ns(31536e12));
assert(std::string("1y") == format_time_ns(315576e11));
assert(std::string("11M 4w 2j 10h 18m 45s") == format_time_ns(31556925e9));
assert(std::string("11M 4w 2j 10h 19m 12s") == format_time_ns(31556952e9));
assert(std::string("1y 9m 9s") == format_time_ns(31558149e9));
assert(std::string("1y 18h") == format_time_ns(316224e11));
assert(std::string("4y") == format_time_ns(1262304e11));
assert(std::string("5y") == format_time_ns(157788e12));
assert(std::string("10y") == format_time_ns(315576e12));
assert(std::string("15y") == format_time_ns(473364e12));
assert(std::string("20y") == format_time_ns(631152e12));
assert(std::string("31y 8M 1w 19h 46m 40s") == format_time_ns(1e18));
assert(std::string("50y") == format_time_ns(157788e13));
assert(std::string("1c") == format_time_ns(315576e13));
assert(std::string("5c 84y 6M 2w 1j 8h 34m 33s 709ms 551us 615ns") == format_time_ns(std::numeric_limits<uint64_t>::max()));
assert(std::string("5c 84y 6M 2w 1j 8h 34m 33s 709ms 551us 615ns") == format_time_ns(18446744073709551615ull));
assert(std::string("1c 10y 10M 3w 6j 10h 10m 10s 100ms 100us 100ns") == format_time_ns(3500003410100100100ull));
}
assert(std::string("1c 10y 10M 3w 6j 10h 10m 10s 100ms 100us 100ns") == format_time_ns(3500003410100100100));
std::string thousand_sep(const uint64_t& k, const char& sep) noexcept {
std::string s = "", n = std::to_string(k);
assert(std::string("0") == thousand_sep(0));
assert(std::string("1") == thousand_sep(1));
assert(std::string("10") == thousand_sep(10));
assert(std::string("100") == thousand_sep(100));
assert(std::string("1,000") == thousand_sep(1e3));
assert(std::string("10,000") == thousand_sep(1e4));
assert(std::string("100,000") == thousand_sep(1e5));
assert(std::string("1,000,000") == thousand_sep(1e6));
assert(std::string("10,000,000") == thousand_sep(1e7));
assert(std::string("100,000,000") == thousand_sep(1e8));
assert(std::string("1,000,000,000") == thousand_sep(1e9));
assert(std::string("10,000,000,000") == thousand_sep(1e10));
assert(std::string("100,000,000,000") == thousand_sep(1e11));
assert(std::string("1,000,000,000,000") == thousand_sep(1e12));
assert(std::string("10,000,000,000,000") == thousand_sep(1e13));
assert(std::string("100,000,000,000,000") == thousand_sep(1e14));
assert(std::string("1,000,000,000,000,000") == thousand_sep(1e15));
assert(std::string("10,000,000,000,000,000") == thousand_sep(1e16));
assert(std::string("100,000,000,000,000,000") == thousand_sep(1e17));
assert(std::string("1,000,000,000,000,000,000") == thousand_sep(1e18));
assert(std::string("1,234,567,890") == thousand_sep(1234567890));
assert(std::string("9,876,543,210") == thousand_sep(9876543210));
assert(std::string("9,223,372,036,854,775,807") == thousand_sep(std::numeric_limits<int64_t>::max()));
uint8_t c = 0;
for (int64_t i = int64_t(n.size()) - 1; i >= 0; --i) {
++c;
s.push_back(n[i]);
if (c == 3) {
s.push_back(sep);
c = 0;
}
}
std::reverse(s.begin(), s.end());
if (s.size() % 4 == 0)
s.erase(s.begin());
return s;
}
std::string thousand_sep(const uint64_t& k) noexcept {
return thousand_sep(k, ',');
assert(std::string("-1") == thousand_sep(-1));
assert(std::string("-10") == thousand_sep(-10));
assert(std::string("-100") == thousand_sep(-100));
assert(std::string("-1,000") == thousand_sep(-1e3));
assert(std::string("-10,000") == thousand_sep(-1e4));
assert(std::string("-100,000") == thousand_sep(-1e5));
assert(std::string("-1,000,000") == thousand_sep(-1e6));
assert(std::string("-10,000,000") == thousand_sep(-1e7));
assert(std::string("-100,000,000") == thousand_sep(-1e8));
assert(std::string("-1,000,000,000") == thousand_sep(-1e9));
assert(std::string("-10,000,000,000") == thousand_sep(-1e10));
assert(std::string("-100,000,000,000") == thousand_sep(-1e11));
assert(std::string("-1,000,000,000,000") == thousand_sep(-1e12));
assert(std::string("-10,000,000,000,000") == thousand_sep(-1e13));
assert(std::string("-100,000,000,000,000") == thousand_sep(-1e14));
assert(std::string("-1,000,000,000,000,000") == thousand_sep(-1e15));
assert(std::string("-10,000,000,000,000,000") == thousand_sep(-1e16));
assert(std::string("-100,000,000,000,000,000") == thousand_sep(-1e17));
assert(std::string("-1,000,000,000,000,000,000") == thousand_sep(-1e18));
assert(std::string("-1,234,567,890") == thousand_sep(-1234567890));
assert(std::string("-9,876,543,210") == thousand_sep(-9876543210));
assert(std::string("-9,223,372,036,854,775,808") == thousand_sep(std::numeric_limits<int64_t>::min()));
}
}

4
toolbox.hpp
View File

@@ -18,8 +18,8 @@ namespace asp {
std::string format_time(const uint64_t) noexcept;
std::string format_time_ns(uint64_t) noexcept;
void toolbox_unit_test(void) noexcept;
std::string thousand_sep(const uint64_t&, const char&) noexcept;
std::string thousand_sep(const uint64_t&) noexcept;
std::string thousand_sep(const int64_t, const char) noexcept;
std::string thousand_sep(const int64_t) noexcept;
/**
* @brief Print a formatted row of titles with of gaps seperated by a separator.