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fast_float/tests/fast_int.cpp
Daniel Lemire 797e3e0bc2 more fixes
2024-01-28 16:01:46 -05:00

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#ifndef __cplusplus
#error fastfloat requires a C++ compiler
#endif
// We want to enable the tests only for C++17 and above.
#ifndef FASTFLOAT_CPLUSPLUS
#if defined(_MSVC_LANG) && !defined(__clang__)
#define FASTFLOAT_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG)
#else
#define FASTFLOAT_CPLUSPLUS __cplusplus
#endif
#endif
#if FASTFLOAT_CPLUSPLUS >= 201703L
#include <cstdlib>
#include <iostream>
#include <vector>
#include <string_view>
#include <cstring>
#include "fast_float/fast_float.h"
#include <cstdint>
/*
all tests conducted are to check fast_float::from_chars functionality with int and unsigned
test cases include:
int basic tests - numbers only, numbers with strings behind, decimals, negative numbers
unsigned basic tests - numbers only, numbers with strings behind, decimals
int invalid tests - strings only, strings with numbers behind, space in front of number, plus sign in front of number
unsigned invalid tests - strings only, strings with numbers behind, space in front of number, plus/minus sign in front of number
int out of range tests - numbers exceeding int bit size for 8, 16, 32, and 64 bits
unsigned out of range tests - numbers exceeding unsigned bit size 8, 16, 32, and 64 bits
int pointer tests - points to first character that is not recognized as int
unsigned pointer tests - points to first character that is not recognized as unsigned
int/unsigned base 2 tests - numbers are converted from binary to decimal
octal tests - numbers are converted from octal to decimal
hex tests - numbers are converted from hex to decimal (Note: 0x and 0X are considered invalid)
invalid base tests - any base not within 2-36 is invalid
out of range base tests - numbers exceeding int/unsigned bit size after converted from base (Note: only 64 bit int and unsigned are tested)
within range base tests - max/min numbers are still within int/unsigned bit size after converted from base (Note: only 64 bit int and unsigned are tested)
leading zeros tests - ignores all zeroes in front of valid number after converted from base
*/
int main() {
// int basic test
const std::vector<int> int_basic_test_expected { 0, 10, -40, 1001, 9 };
const std::vector<std::string_view> int_basic_test { "0", "10 ", "-40", "1001 with text", "9.999" };
for (std::size_t i = 0; i < int_basic_test.size(); ++i) {
const auto f = int_basic_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc()) {
if (answer.ec == std::errc::invalid_argument) {
std::cerr << "could not convert to int for input: \"" << f << "\" because of invalid argument" << std::endl;
}
else if (answer.ec == std::errc::result_out_of_range) {
std::cerr << "could not convert to int for input: \"" << f << "\" because it's out of range" << std::endl;
}
else {
std::cerr << "could not convert to int for input: \"" << f << "\" because of an unknown error" << std::endl;
}
return EXIT_FAILURE;
}
else if (result != int_basic_test_expected[i]) {
std::cerr << "result \"" << f << "\" did not match with expected int: " << int_basic_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// unsigned basic test
const std::vector<unsigned> unsigned_basic_test_expected { 0, 10, 1001, 9 };
const std::vector<std::string_view> unsigned_basic_test { "0", "10 ", "1001 with text", "9.999" };
for (std::size_t i = 0; i < unsigned_basic_test.size(); ++i) {
const auto& f = unsigned_basic_test[i];
unsigned result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to unsigned for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != unsigned_basic_test_expected[i]) {
std::cerr << "result \"" << f << "\" did not match with expected unsigned: " << unsigned_basic_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// int invalid error test
const std::vector<std::string_view> int_invalid_argument_test{ "text", "text with 1002", "+50", " 50" };
for (std::size_t i = 0; i < int_invalid_argument_test.size(); ++i) {
const auto& f = int_invalid_argument_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned invalid error test
const std::vector<std::string_view> unsigned_invalid_argument_test{ "text", "text with 1002", "+50", " 50", "-50" };
for (std::size_t i = 0; i < unsigned_invalid_argument_test.size(); ++i) {
const auto& f = unsigned_invalid_argument_test[i];
unsigned result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int out of range error test #1 (8 bit)
const std::vector<std::string_view> int_out_of_range_test_1{ "2000000000000000000000", "128", "-129"};
for (std::size_t i = 0; i < int_out_of_range_test_1.size(); ++i) {
const auto& f = int_out_of_range_test_1[i];
int8_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int out of range error test #2 (16 bit)
const std::vector<std::string_view> int_out_of_range_test_2{ "2000000000000000000000", "32768", "-32769"};
for (std::size_t i = 0; i < int_out_of_range_test_2.size(); ++i) {
const auto& f = int_out_of_range_test_2[i];
int16_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int out of range error test #3 (32 bit)
const std::vector<std::string_view> int_out_of_range_test_3{ "2000000000000000000000", "2147483648", "-2147483649"};
for (std::size_t i = 0; i < int_out_of_range_test_3.size(); ++i) {
const auto& f = int_out_of_range_test_3[i];
int32_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int out of range error test #4 (64 bit)
const std::vector<std::string_view> int_out_of_range_test_4{ "2000000000000000000000", "9223372036854775808", "-9223372036854775809"};
for (std::size_t i = 0; i < int_out_of_range_test_4.size(); ++i) {
const auto& f = int_out_of_range_test_4[i];
int64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned out of range error test #1 (8 bit)
const std::vector<std::string_view> unsigned_out_of_range_test_1{ "2000000000000000000000", "256" };
for (std::size_t i = 0; i < unsigned_out_of_range_test_1.size(); ++i) {
const auto& f = unsigned_out_of_range_test_1[i];
uint8_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned out of range error test #2 (16 bit)
const std::vector<std::string_view> unsigned_out_of_range_test_2{ "2000000000000000000000", "65536" };
for (std::size_t i = 0; i < unsigned_out_of_range_test_2.size(); ++i) {
const auto& f = unsigned_out_of_range_test_2[i];
uint16_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned out of range error test #3 (32 bit)
const std::vector<std::string_view> unsigned_out_of_range_test_3{ "2000000000000000000000", "4294967296" };
for (std::size_t i = 0; i < unsigned_out_of_range_test_3.size(); ++i) {
const auto& f = unsigned_out_of_range_test_3[i];
uint32_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned out of range error test #4 (64 bit)
const std::vector<std::string_view> unsigned_out_of_range_test_4{ "2000000000000000000000", "18446744073709551616" };
for (std::size_t i = 0; i < unsigned_out_of_range_test_4.size(); ++i) {
const auto& f = unsigned_out_of_range_test_4[i];
uint64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int pointer test #1 (only numbers)
const std::vector<std::string_view> int_pointer_test_1 { "0", "010", "-40" };
for (std::size_t i = 0; i < int_pointer_test_1.size(); ++i) {
const auto& f = int_pointer_test_1[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (strcmp(answer.ptr, "") != 0) {
std::cerr << "ptr of result " << f << " did not match with expected ptr: \"\"" << std::endl;
return EXIT_FAILURE;
}
}
// int pointer test #2 (string behind numbers)
const std::string_view int_pointer_test_2 = "1001 with text";
const auto& f2 = int_pointer_test_2;
int result2;
auto answer2 = fast_float::from_chars(f2.data(), f2.data() + f2.size(), result2);
if (strcmp(answer2.ptr, " with text") != 0) {
std::cerr << "ptr of result " << f2 << " did not match with expected ptr: \"with text\"" << std::endl;
return EXIT_FAILURE;
}
// int pointer test #3 (string with newline behind numbers)
const std::string_view int_pointer_test_3 = "1001 with text\n";
const auto& f3 = int_pointer_test_3;
int result3;
auto answer3 = fast_float::from_chars(f3.data(), f3.data() + f3.size(), result3);
if (strcmp(answer3.ptr, " with text\n") != 0) {
std::cerr << "ptr of result " << f3 << " did not match with expected ptr: with text" << std::endl;
return EXIT_FAILURE;
}
// int pointer test #4 (float)
const std::string_view int_pointer_test_4 = "9.999";
const auto& f4 = int_pointer_test_4;
int result4;
auto answer4 = fast_float::from_chars(f4.data(), f4.data() + f4.size(), result4);
if (strcmp(answer4.ptr, ".999") != 0) {
std::cerr << "ptr of result " << f4 << " did not match with expected ptr: .999" << std::endl;
return EXIT_FAILURE;
}
// int pointer test #5 (invalid int)
const std::string_view int_pointer_test_5 = "+50";
const auto& f5 = int_pointer_test_5;
int result5;
auto answer5 = fast_float::from_chars(f5.data(), f5.data() + f5.size(), result5);
if (strcmp(answer5.ptr, "+50") != 0) {
std::cerr << "ptr of result " << f5 << " did not match with expected ptr: +50" << std::endl;
return EXIT_FAILURE;
}
// unsigned pointer test #2 (string behind numbers)
const std::string_view unsigned_pointer_test_1 = "1001 with text";
const auto& f6 = unsigned_pointer_test_1;
unsigned result6;
auto answer6 = fast_float::from_chars(f6.data(), f6.data() + f6.size(), result6);
if (strcmp(answer6.ptr, " with text") != 0) {
std::cerr << "ptr of result " << f6 << " did not match with expected ptr: with text" << std::endl;
return EXIT_FAILURE;
}
// unsigned pointer test #2 (invalid unsigned)
const std::string_view unsigned_pointer_test_2 = "-50";
const auto& f7 = unsigned_pointer_test_2;
unsigned result7;
auto answer7 = fast_float::from_chars(f7.data(), f7.data() + f7.size(), result7);
if (strcmp(answer7.ptr, "-50") != 0) {
std::cerr << "ptr of result " << f7 << " did not match with expected ptr: -50" << std::endl;
return EXIT_FAILURE;
}
// int base 2 test
const std::vector<int> int_base_2_test_expected { 0, 1, 4, 2, -1 };
const std::vector<std::string_view> int_base_2_test { "0", "1", "100", "010", "-1" };
for (std::size_t i = 0; i < int_base_2_test.size(); ++i) {
const auto f = int_base_2_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 2);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != int_base_2_test_expected[i]) {
std::cerr << "result " << f << " did not match with expected int: " << int_base_2_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// unsigned base 2 test
const std::vector<unsigned> unsigned_base_2_test_expected { 0, 1, 4, 2 };
const std::vector<std::string_view> unsigned_base_2_test { "0", "1", "100", "010" };
for (std::size_t i = 0; i < unsigned_base_2_test.size(); ++i) {
const auto& f = unsigned_base_2_test[i];
unsigned result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 2);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to unsigned for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != unsigned_base_2_test_expected[i]) {
std::cerr << "result " << f << " did not match with expected unsigned: " << unsigned_base_2_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// int invalid error base 2 test
const std::vector<std::string_view> int_invalid_argument_base_2_test{ "2", "A", "-2" };
for (std::size_t i = 0; i < int_invalid_argument_base_2_test.size(); ++i) {
const auto& f = int_invalid_argument_base_2_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 2);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned invalid error base 2 test
const std::vector<std::string_view> unsigned_invalid_argument_base_2_test{ "2", "A", "-1", "-2" };
for (std::size_t i = 0; i < unsigned_invalid_argument_base_2_test.size(); ++i) {
const auto& f = unsigned_invalid_argument_base_2_test[i];
unsigned result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 2);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// octal test
const std::vector<int> base_octal_test_expected {0, 1, 7, 8, 9};
const std::vector<std::string_view> base_octal_test { "0", "1", "07", "010", "0011" };
for (std::size_t i = 0; i < base_octal_test.size(); ++i) {
const auto& f = base_octal_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 8);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != base_octal_test_expected[i]) {
std::cerr << "result " << f << " did not match with expected int: " << base_octal_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// hex test
const std::vector<int> base_hex_test_expected { 0, 1, 15, 31, 0, 16};
const std::vector<std::string_view> base_hex_test { "0", "1", "F", "01f", "0x11", "10X11" };
for (std::size_t i = 0; i < base_hex_test.size(); ++i) {
const auto& f = base_hex_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 16);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != base_hex_test_expected[i]) {
std::cerr << "result " << f << " did not match with expected int: " << base_hex_test_expected[i] << std::endl;
return EXIT_FAILURE;
}
}
// invalid base test #1 (-1)
const std::vector<std::string_view> invalid_base_test_1 { "0", "1", "-1", "F", "10Z" };
for (std::size_t i = 0; i < invalid_base_test_1.size(); ++i) {
const auto& f = invalid_base_test_1[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, -1);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// invalid base test #2 (37)
const std::vector<std::string_view> invalid_base_test_2 { "0", "1", "F", "Z", "10Z" };
for (std::size_t i = 0; i < invalid_base_test_2.size(); ++i) {
const auto& f = invalid_base_test_2[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, 37);
if (answer.ec != std::errc::invalid_argument) {
std::cerr << "expected error should be 'invalid_argument' for: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// int out of range error base test (64 bit)
const std::vector<std::string_view> int_out_of_range_base_test { "1000000000000000000000000000000000000000000000000000000000000000",
"-1000000000000000000000000000000000000000000000000000000000000001",
"2021110011022210012102010021220101220222",
"-2021110011022210012102010021220101221000",
"20000000000000000000000000000000",
"-20000000000000000000000000000001",
"1104332401304422434310311213",
"-1104332401304422434310311214",
"1540241003031030222122212",
"-1540241003031030222122213",
"22341010611245052052301",
"-22341010611245052052302",
"1000000000000000000000",
"-1000000000000000000001",
"67404283172107811828",
"-67404283172107811830",
"9223372036854775808",
"-9223372036854775809",
"1728002635214590698",
"-1728002635214590699",
"41A792678515120368",
"-41A792678515120369",
"10B269549075433C38",
"-10B269549075433C39",
"4340724C6C71DC7A8",
"-4340724C6C71DC7A9",
"160E2AD3246366808",
"-160E2AD3246366809",
"8000000000000000",
"-8000000000000001",
"33D3D8307B214009",
"-33D3D8307B21400A",
"16AGH595DF825FA8",
"-16AGH595DF825FA9",
"BA643DCI0FFEEHI",
"-BA643DCI0FFEEI0",
"5CBFJIA3FH26JA8",
"-5CBFJIA3FH26JA9",
"2HEICIIIE82DH98",
"-2HEICIIIE82DH99",
"1ADAIBB21DCKFA8",
"-1ADAIBB21DCKFA9",
"I6K448CF4192C3",
"-I6K448CF4192C4",
"ACD772JNC9L0L8",
"-ACD772JNC9L0L9",
"64IE1FOCNN5G78",
"-64IE1FOCNN5G79",
"3IGOECJBMCA688",
"-3IGOECJBMCA689",
"27C48L5B37OAOQ",
"-27C48L5B37OAP0",
"1BK39F3AH3DMQ8",
"-1BK39F3AH3DMQ9",
"Q1SE8F0M04ISC",
"-Q1SE8F0M04ISD",
"HAJPPBC1FC208",
"-HAJPPBC1FC209",
"BM03I95HIA438",
"-BM03I95HIA439",
"8000000000000",
"-8000000000001",
"5HG4CK9JD4U38",
"-5HG4CK9JD4U39",
"3TDTK1V8J6TPQ",
"-3TDTK1V8J6TPR",
"2PIJMIKEXRXP8",
"-2PIJMIKEXRXP9",
"1Y2P0IJ32E8E8",
"-1Y2P0IJ32E8E9" };
for (std::size_t i = 0; i < int_out_of_range_base_test.size(); ++i) {
const auto& f = int_out_of_range_base_test[i];
int64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, int(2 + (i / 2)));
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned out of range error base test (64 bit)
const std::vector<std::string_view> unsigned_out_of_range_base_test { "10000000000000000000000000000000000000000000000000000000000000000",
"11112220022122120101211020120210210211221",
"100000000000000000000000000000000",
"2214220303114400424121122431",
"3520522010102100444244424",
"45012021522523134134602",
"2000000000000000000000",
"145808576354216723757",
"18446744073709551616",
"335500516A429071285",
"839365134A2A240714",
"219505A9511A867B73",
"8681049ADB03DB172",
"2C1D56B648C6CD111",
"10000000000000000",
"67979G60F5428011",
"2D3FGB0B9CG4BD2G",
"141C8786H1CCAAGH",
"B53BJH07BE4DJ0G",
"5E8G4GGG7G56DIG",
"2L4LF104353J8KG",
"1DDH88H2782I516",
"L12EE5FN0JI1IG",
"C9C336O0MLB7EG",
"7B7N2PCNIOKCGG",
"4EO8HFAM6FLLMP",
"2NC6J26L66RHOG",
"1N3RSH11F098RO",
"14L9LKMO30O40G",
"ND075IB45K86G",
"G000000000000",
"B1W8P7J5Q9R6G",
"7ORP63SH4DPHI",
"5G24A25TWKWFG",
"3W5E11264SGSG" };
int base_unsigned = 2;
for (std::size_t i = 0; i < unsigned_out_of_range_base_test.size(); ++i) {
const auto& f = unsigned_out_of_range_base_test[i];
uint64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, base_unsigned);
if (answer.ec != std::errc::result_out_of_range) {
std::cerr << "expected error for should be 'result_out_of_range': \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
++base_unsigned;
}
// just within range base test (64 bit)
const std::vector<std::string_view> int_within_range_base_test { "111111111111111111111111111111111111111111111111111111111111111",
"-1000000000000000000000000000000000000000000000000000000000000000",
"2021110011022210012102010021220101220221",
"-2021110011022210012102010021220101220222",
"13333333333333333333333333333333",
"-20000000000000000000000000000000",
"1104332401304422434310311212",
"-1104332401304422434310311213",
"1540241003031030222122211",
"-1540241003031030222122212",
"22341010611245052052300",
"-22341010611245052052301",
"777777777777777777777",
"-1000000000000000000000",
"67404283172107811827",
"-67404283172107811828",
"9223372036854775807",
"-9223372036854775808",
"1728002635214590697",
"-1728002635214590698",
"41A792678515120367",
"-41A792678515120368",
"10B269549075433C37",
"-10B269549075433C38",
"4340724C6C71DC7A7",
"-4340724C6C71DC7A8",
"160E2AD3246366807",
"-160E2AD3246366808",
"7FFFFFFFFFFFFFFF",
"-8000000000000000",
"33D3D8307B214008",
"-33D3D8307B214009",
"16AGH595DF825FA7",
"-16AGH595DF825FA8",
"BA643DCI0FFEEHH",
"-BA643DCI0FFEEHI",
"5CBFJIA3FH26JA7",
"-5CBFJIA3FH26JA8",
"2HEICIIIE82DH97",
"-2HEICIIIE82DH98",
"1ADAIBB21DCKFA7",
"-1ADAIBB21DCKFA8",
"I6K448CF4192C2",
"-I6K448CF4192C3",
"ACD772JNC9L0L7",
"-ACD772JNC9L0L8",
"64IE1FOCNN5G77",
"-64IE1FOCNN5G78",
"3IGOECJBMCA687",
"-3IGOECJBMCA688",
"27C48L5B37OAOP",
"-27C48L5B37OAOQ",
"1BK39F3AH3DMQ7",
"-1BK39F3AH3DMQ8",
"Q1SE8F0M04ISB",
"-Q1SE8F0M04ISC",
"HAJPPBC1FC207",
"-HAJPPBC1FC208",
"BM03I95HIA437",
"-BM03I95HIA438",
"7VVVVVVVVVVVV",
"-8000000000000",
"5HG4CK9JD4U37",
"-5HG4CK9JD4U38",
"3TDTK1V8J6TPP",
"-3TDTK1V8J6TPQ",
"2PIJMIKEXRXP7",
"-2PIJMIKEXRXP8",
"1Y2P0IJ32E8E7",
"-1Y2P0IJ32E8E8" };
for (std::size_t i = 0; i < int_within_range_base_test.size(); ++i) {
const auto& f = int_within_range_base_test[i];
int64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, int(2 + (i / 2)));
if (answer.ec != std::errc()) {
std::cerr << "converting " << f << " to int failed (most likely out of range)" << std::endl;
return EXIT_FAILURE;
}
}
// unsigned within range base test (64 bit)
const std::vector<std::string_view> unsigned_within_range_base_test { "1111111111111111111111111111111111111111111111111111111111111111",
"11112220022122120101211020120210210211220",
"33333333333333333333333333333333",
"2214220303114400424121122430",
"3520522010102100444244423",
"45012021522523134134601",
"1777777777777777777777",
"145808576354216723756",
"18446744073709551615",
"335500516A429071284",
"839365134A2A240713",
"219505A9511A867B72",
"8681049ADB03DB171",
"2C1D56B648C6CD110",
"FFFFFFFFFFFFFFFF",
"67979G60F5428010",
"2D3FGB0B9CG4BD2F",
"141C8786H1CCAAGG",
"B53BJH07BE4DJ0F",
"5E8G4GGG7G56DIF",
"2L4LF104353J8KF",
"1DDH88H2782I515",
"L12EE5FN0JI1IF",
"C9C336O0MLB7EF",
"7B7N2PCNIOKCGF",
"4EO8HFAM6FLLMO",
"2NC6J26L66RHOF",
"1N3RSH11F098RN",
"14L9LKMO30O40F",
"ND075IB45K86F",
"FVVVVVVVVVVVV",
"B1W8P7J5Q9R6F",
"7ORP63SH4DPHH",
"5G24A25TWKWFF",
"3W5E11264SGSF" };
int base_unsigned2 = 2;
for (std::size_t i = 0; i < unsigned_within_range_base_test.size(); ++i) {
const auto& f = unsigned_within_range_base_test[i];
uint64_t result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, base_unsigned2);
if (answer.ec != std::errc()) {
std::cerr << "converting " << f << " to unsigned failed (most likely out of range)" << std::endl;
return EXIT_FAILURE;
}
++base_unsigned2;
}
// int leading zeros test
const std::vector<std::string_view> int_leading_zeros_test { "00000000000000000000000000000000000000000000000000000000000000000000001111110111",
"000000000000000000000000000000000000000000000000001101121",
"000000000000000000000000000000000000000033313",
"00000000000000000000000000000013030",
"0000000000000000000000000000004411",
"0000000000000000000000000000002650",
"0000000000000000000000000000001767",
"0000000000000000000000000000001347",
"0000000000000000000000000000001015",
"00000000000000000000843",
"00000000000000000000707",
"00000000000000000000601",
"00000000000000000000527",
"0000000000000000000047A",
"000000000000000000003F7",
"0000000000000000000038C",
"00000000000000000000327",
"000000000000000000002F8",
"000000000000000000002AF",
"00000000000000000000267",
"00000000000000000000223",
"000000000000000000001L3",
"000000000000000000001I7",
"000000000000000000001FF",
"000000000000000000001D1",
"000000000000000000001AG",
"00000000000000000000187",
"00000000000000000000160",
"0000000000000000000013P",
"0000000000000000000011N",
"00000000000000000000VN",
"00000000000000000000UP",
"00000000000000000000TT",
"00000000000000000000T0",
"00000000000000000000S7" };
for (std::size_t i = 0; i < int_leading_zeros_test.size(); ++i) {
const auto& f = int_leading_zeros_test[i];
int result;
auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, int(i + 2));
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: \"" << f << "\"" << std::endl;
return EXIT_FAILURE;
}
else if (result != 1015) {
std::cerr << "result " << f << " did not match with expected int: " << 1015 << std::endl;
return EXIT_FAILURE;
}
}
// issue 235
{
std::vector<char> s = {'0'};
s.shrink_to_fit();
int foo;
auto answer = fast_float::from_chars(s.data(), s.data() + s.size(), foo);
if (answer.ec != std::errc()) {
std::cerr << "could not convert to int for input: '0'" << std::endl;
return EXIT_FAILURE;
}
else if (foo != 0) {
std::cerr << "expected zero: " << foo << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
#else
#include <iostream>
#include <cstdlib>
int main() {
std::cerr << "The test requires C++17." << std::endl;
return EXIT_SUCCESS;
}
#endif
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