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Build with pedantic flags under GNU GCC.

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This commit is contained in:
Daniel Lemire 2020-11-11 20:17:18 -05:00
parent 7eae925b51
commit 9c5dac3705
7 changed files with 25 additions and 22 deletions
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2
include/fast_float/decimal_to_binary.h
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@ -108,7 +108,7 @@ adjusted_mantissa compute_float(int64_t q, uint64_t w) noexcept {
answer.mantissa = product.high >> (upperbit + 64 - binary::mantissa_explicit_bits() - 3); answer.mantissa = product.high >> (upperbit + 64 - binary::mantissa_explicit_bits() - 3);
answer.power2 = power(int(q)) + upperbit - lz - binary::minimum_exponent(); answer.power2 = int(power(int(q)) + upperbit - lz - binary::minimum_exponent());
if (answer.power2 <= 0) { // we have a subnormal? if (answer.power2 <= 0) { // we have a subnormal?
// Here have that answer.power2 <= 0 so -answer.power2 >= 0 // Here have that answer.power2 <= 0 so -answer.power2 >= 0
if(-answer.power2 + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. if(-answer.power2 + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure.

4
tests/CMakeLists.txt
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@ -2,6 +2,10 @@
function(fast_float_add_cpp_test TEST_NAME) function(fast_float_add_cpp_test TEST_NAME)
add_executable(${TEST_NAME} ${TEST_NAME}.cpp) add_executable(${TEST_NAME} ${TEST_NAME}.cpp)
add_test(${TEST_NAME} ${TEST_NAME}) add_test(${TEST_NAME} ${TEST_NAME})
if(NOT WIN32)
target_compile_options(${TEST_NAME} PUBLIC -Werror -Wall -Wextra -Weffc++)
target_compile_options(${TEST_NAME} PUBLIC -Wsign-compare -Wshadow -Wwrite-strings -Wpointer-arith -Winit-self -Wconversion -Wno-sign-conversion)
endif()
target_link_libraries(${TEST_NAME} PUBLIC fast_float) target_link_libraries(${TEST_NAME} PUBLIC fast_float)
endfunction(fast_float_add_cpp_test) endfunction(fast_float_add_cpp_test)
fast_float_add_cpp_test(short_random_string) fast_float_add_cpp_test(short_random_string)

11
tests/basictest.cpp
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@ -192,7 +192,6 @@ bool test_scientific_only() {
return false; return false;
} }
input = "3.14e10"; input = "3.14e10";
result;
answer = fast_float::from_chars(input.data(), input.data()+input.size(), result, fast_float::chars_format::scientific); answer = fast_float::from_chars(input.data(), input.data()+input.size(), result, fast_float::chars_format::scientific);
if(answer.ec != std::errc()) { if(answer.ec != std::errc()) {
std::cerr << "It is scientific!\n"; std::cerr << "It is scientific!\n";
@ -450,7 +449,7 @@ int main() {
Assert(basic_test_32bit("0.0015924838953651488",0x1.a175cap-10f)); Assert(basic_test_32bit("0.0015924838953651488",0x1.a175cap-10f));
Assert(basic_test_32bit("0.0008602388261351734",0.0008602388261351734f)); Assert(basic_test_32bit("0.0008602388261351734",0.0008602388261351734f));
Assert(basic_test_32bit("0.00036393293703440577",0x1.7d9c82p-12f)); Assert(basic_test_32bit("0.00036393293703440577",0x1.7d9c82p-12f));
Assert(basic_test_32bit("0.00013746770127909258",0.00013746770127909258)); Assert(basic_test_32bit("0.00013746770127909258",0.00013746770127909258f));
Assert(basic_test_32bit("16407.9462890625", 16407.9462890625f)); Assert(basic_test_32bit("16407.9462890625", 16407.9462890625f));
Assert(basic_test_32bit("1.1754947011469036e-38", 0x1.000006p-126f)); Assert(basic_test_32bit("1.1754947011469036e-38", 0x1.000006p-126f));
Assert(basic_test_32bit("7.0064923216240854e-46", 0x1p-149f)); Assert(basic_test_32bit("7.0064923216240854e-46", 0x1p-149f));
@ -458,7 +457,7 @@ int main() {
Assert(basic_test_32bit("0e9999999999999999999999999999", 0)); Assert(basic_test_32bit("0e9999999999999999999999999999", 0));
Assert(basic_test_32bit("1234456789012345678901234567890e9999999999999999999999999999", std::numeric_limits<float>::infinity())); Assert(basic_test_32bit("1234456789012345678901234567890e9999999999999999999999999999", std::numeric_limits<float>::infinity()));
Assert(basic_test_32bit("4.7019774032891500318749461488889827112746622270883500860350068251e-38",4.7019774032891500318749461488889827112746622270883500860350068251e-38f)); Assert(basic_test_32bit("4.7019774032891500318749461488889827112746622270883500860350068251e-38",4.7019774032891500318749461488889827112746622270883500860350068251e-38f));
Assert(basic_test_32bit("3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679", 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679)); Assert(basic_test_32bit("3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679", 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679f));
Assert(basic_test_32bit("2.3509887016445750159374730744444913556373311135441750430175034126e-38", 2.3509887016445750159374730744444913556373311135441750430175034126e-38f)); Assert(basic_test_32bit("2.3509887016445750159374730744444913556373311135441750430175034126e-38", 2.3509887016445750159374730744444913556373311135441750430175034126e-38f));
Assert(basic_test_32bit("+1", 1)); Assert(basic_test_32bit("+1", 1));
Assert(basic_test_32bit("2e3000", std::numeric_limits<float>::infinity())); Assert(basic_test_32bit("2e3000", std::numeric_limits<float>::infinity()));
@ -472,9 +471,9 @@ int main() {
Assert(basic_test_32bit("3.4028234665e38", 0x1.fffffep+127f)); Assert(basic_test_32bit("3.4028234665e38", 0x1.fffffep+127f));
Assert(basic_test_32bit("3.4028234666e38", 0x1.fffffep+127f)); Assert(basic_test_32bit("3.4028234666e38", 0x1.fffffep+127f));
Assert(basic_test_32bit("0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625", 0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625)); Assert(basic_test_32bit("0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625", 0.000000000000000000000000000000000000011754943508222875079687365372222456778186655567720875215087517062784172594547271728515625));
Assert(basic_test_32bit("0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125", 0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125)); Assert(basic_test_32bit("0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125", 0.00000000000000000000000000000000000000000000140129846432481707092372958328991613128026194187651577175706828388979108268586060148663818836212158203125f));
Assert(basic_test_32bit("0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875", 0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875)); Assert(basic_test_32bit("0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875", 0.00000000000000000000000000000000000002350988561514728583455765982071533026645717985517980855365926236850006129930346077117064851336181163787841796875f));
Assert(basic_test_32bit("0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875", 0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875)); Assert(basic_test_32bit("0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875", 0.00000000000000000000000000000000000001175494210692441075487029444849287348827052428745893333857174530571588870475618904265502351336181163787841796875f));
std::cout << std::endl; std::cout << std::endl;
Assert(powers_of_ten()); Assert(powers_of_ten());

2
tests/exhaustive32.cpp
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@ -19,7 +19,7 @@ void allvalues() {
std::cout << "."; std::cout << ".";
std::cout.flush(); std::cout.flush();
} }
uint32_t word = w; uint32_t word = uint32_t(w);
memcpy(&v, &word, sizeof(v)); memcpy(&v, &word, sizeof(v));
{ {

4
tests/exhaustive32_midpoint.cpp
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@ -53,7 +53,7 @@ void allvalues() {
std::cout << "."; std::cout << ".";
std::cout.flush(); std::cout.flush();
} }
uint32_t word = w; uint32_t word = uint32_t(w);
memcpy(&v, &word, sizeof(v)); memcpy(&v, &word, sizeof(v));
if(std::isfinite(v)) { if(std::isfinite(v)) {
float nextf = std::nextafterf(v, INFINITY); float nextf = std::nextafterf(v, INFINITY);
@ -64,7 +64,7 @@ void allvalues() {
double v2{nextf}; double v2{nextf};
assert(float(v2) == nextf); assert(float(v2) == nextf);
double midv{v1 + (v2 - v1) / 2}; double midv{v1 + (v2 - v1) / 2};
float expected_midv(midv); float expected_midv = float(midv);
const char *string_end = to_string(midv, buffer); const char *string_end = to_string(midv, buffer);
float str_answer; float str_answer;

12
tests/random_string.cpp
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@ -24,7 +24,7 @@ double cygwin_strtod_l(const char* start, char** end) {
class RandomEngine { class RandomEngine {
public: public:
RandomEngine() = delete; RandomEngine() = delete;
RandomEngine(int new_seed) { wyhash64_x_ = new_seed; }; RandomEngine(int new_seed) : wyhash64_x_(new_seed) {};
uint64_t next() { uint64_t next() {
// Adapted from https://github.com/wangyi-fudan/wyhash/blob/master/wyhash.h // Adapted from https://github.com/wangyi-fudan/wyhash/blob/master/wyhash.h
// Inspired from // Inspired from
@ -47,7 +47,7 @@ public:
/* if (min == max) { /* if (min == max) {
return min; return min;
}*/ }*/
int s = max - min + 1; uint64_t s = uint64_t(max - min + 1);
uint64_t x = next(); uint64_t x = next();
fast_float::value128 m = fast_float::full_multiplication(x, s); fast_float::value128 m = fast_float::full_multiplication(x, s);
uint64_t l = m.low; uint64_t l = m.low;
@ -59,7 +59,7 @@ public:
l = m.low; l = m.low;
} }
} }
return (m.high) + min; return int(m.high + min);
} }
int next_digit() { return next_ranged_int(0, 9); } int next_digit() { return next_ranged_int(0, 9); }
@ -78,8 +78,8 @@ size_t build_random_string(RandomEngine &rand, char *buffer) {
number_of_digits = rand.next_ranged_int(1, 2000); number_of_digits = rand.next_ranged_int(1, 2000);
} }
int location_of_decimal_separator = rand.next_ranged_int(1, number_of_digits); int location_of_decimal_separator = rand.next_ranged_int(1, number_of_digits);
for (size_t i = 0; i < number_of_digits; i++) { for (size_t i = 0; i < size_t(number_of_digits); i++) {
if (i == location_of_decimal_separator) { if (i == size_t(location_of_decimal_separator)) {
buffer[pos++] = '.'; buffer[pos++] = '.';
} }
buffer[pos++] = char(rand.next_digit() + '0'); buffer[pos++] = char(rand.next_digit() + '0');
@ -98,7 +98,7 @@ size_t build_random_string(RandomEngine &rand, char *buffer) {
} }
} }
number_of_digits = rand.next_ranged_int(1, 3); number_of_digits = rand.next_ranged_int(1, 3);
for (size_t i = 0; i < number_of_digits; i++) { for (size_t i = 0; i < size_t(number_of_digits); i++) {
buffer[pos++] = char(rand.next_digit() + '0'); buffer[pos++] = char(rand.next_digit() + '0');
} }
} }

12
tests/short_random_string.cpp
View File

@ -24,7 +24,7 @@ double cygwin_strtod_l(const char* start, char** end) {
class RandomEngine { class RandomEngine {
public: public:
RandomEngine() = delete; RandomEngine() = delete;
RandomEngine(int new_seed) { wyhash64_x_ = new_seed; }; RandomEngine(int new_seed) : wyhash64_x_(new_seed) { };
uint64_t next() { uint64_t next() {
// Adapted from https://github.com/wangyi-fudan/wyhash/blob/master/wyhash.h // Adapted from https://github.com/wangyi-fudan/wyhash/blob/master/wyhash.h
// Inspired from // Inspired from
@ -47,7 +47,7 @@ public:
/* if (min == max) { /* if (min == max) {
return min; return min;
}*/ }*/
int s = max - min + 1; uint64_t s = uint64_t(max - min + 1);
uint64_t x = next(); uint64_t x = next();
fast_float::value128 m = fast_float::full_multiplication(x, s); fast_float::value128 m = fast_float::full_multiplication(x, s);
uint64_t l = m.low; uint64_t l = m.low;
@ -59,7 +59,7 @@ public:
l = m.low; l = m.low;
} }
} }
return (m.high) + min; return int(m.high + min);
} }
int next_digit() { return next_ranged_int(0, 9); } int next_digit() { return next_ranged_int(0, 9); }
@ -74,8 +74,8 @@ size_t build_random_string(RandomEngine &rand, char *buffer) {
} }
int number_of_digits = rand.next_ranged_int(1, 19); int number_of_digits = rand.next_ranged_int(1, 19);
int location_of_decimal_separator = rand.next_ranged_int(1, number_of_digits); int location_of_decimal_separator = rand.next_ranged_int(1, number_of_digits);
for (size_t i = 0; i < number_of_digits; i++) { for (size_t i = 0; i < size_t(number_of_digits); i++) {
if (i == location_of_decimal_separator) { if (i == size_t(location_of_decimal_separator)) {
buffer[pos++] = '.'; buffer[pos++] = '.';
} }
buffer[pos++] = char(rand.next_digit() + '0'); buffer[pos++] = char(rand.next_digit() + '0');
@ -94,7 +94,7 @@ size_t build_random_string(RandomEngine &rand, char *buffer) {
} }
} }
number_of_digits = rand.next_ranged_int(1, 3); number_of_digits = rand.next_ranged_int(1, 3);
for (size_t i = 0; i < number_of_digits; i++) { for (size_t i = 0; i < size_t(number_of_digits); i++) {
buffer[pos++] = char(rand.next_digit() + '0'); buffer[pos++] = char(rand.next_digit() + '0');
} }
} }