Victor Zverovich vitaut
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vitaut
/ gen-pow10-significands.py
Last active
November 17, 2025 01:40
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| #!/usr/bin/env python3 | |
| # Public domain power of 10 table generator for the Schubfach algorithm: | |
| # https://drive.google.com/file/d/1IEeATSVnEE6TkrHlCYNY2GjaraBjOT4f. | |
| # Author: Victor Zverovich | |
| import math | |
| # Range of decimal exponents [K_min, K_max] from the paper. | |
| dec_exp_min = -324 | |
| dec_exp_max = 292 |
vitaut
/ gist:25864fcec78caba0c8dd6e1c17763ab9
Last active
September 10, 2021 15:08
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| #include <benchmark/benchmark.h> | |
| #include <fmt/chrono.h> | |
| #include <fmt/compile.h> | |
| #include <ctime> | |
| static void year_month_day_strftime(benchmark::State& state) { | |
| srand(0); | |
| tm t; | |
| t.tm_year = rand() % 10000 - 1900; |
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| #include <benchmark/benchmark.h> | |
| #include <fmt/compile.h> | |
| #include <fmt/os.h> | |
| #include <cstdio> | |
| #include <fstream> | |
| #if 1 //__cpp_lib_concepts>=201907L | |
| #include "../fast_io/include/fast_io.h" | |
| #include "../fast_io/include/fast_io_device.h" |
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| /* | |
| Formatting library for C++ | |
| Copyright (c) 2012 - present, Victor Zverovich | |
| All rights reserved. | |
| Redistribution and use in source and binary forms, with or without | |
| modification, are permitted provided that the following conditions are met: | |
| 1. Redistributions of source code must retain the above copyright notice, this |
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| #include "asl.h" | |
| int main() { | |
| ASL *asl = ASL_alloc(ASL_read_fg); | |
| FILE *f = jac0dim("test.nl", 0); | |
| fg_read(f, 0); | |
| fint ne = 0; | |
| double x[] = { 0, 0 }; | |
| double objval = asl->p.Objval(asl, 0, x, &ne); | |
| printf("%g %d\n", objval, ne); |
vitaut
/ custom-char
Created
June 9, 2015 04:55
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| #define FMT_HEADER_ONLY | |
| #include "format.h" | |
| struct Syschar { | |
| char c; | |
| Syschar(char c = 0) : c(c) {} | |
| operator char() const { return c; } | |
| }; | |
| namespace fmt { |
vitaut
/ nlreader-example.cc
Last active
March 22, 2016 00:19
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| #include "mp/nl-reader.h" | |
| enum Expr {OTHER, CONST}; | |
| struct ExprCounter : mp::NullNLHandler<Expr> { | |
| int num_divs; | |
| ExprCounter() : num_divs(0) {} | |
| Expr OnBinary(mp::expr::Kind kind, Expr lhs, Expr rhs) { | |
| if (kind == mp::expr::DIV && rhs != CONST) | |
| ++num_divs; |