📊 Cross-platform user-friendly xlsx library for C++11+
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JCrawfy 0adb8a69b1 add micro benchmarking project, setup number parsing benchmark
relating to previous work https://github.com/tfussell/xlnt/issues/422
Results are matching what was observed at the time ^^ was being worked on
std::from_chars is included as the target to beat, but since only MSVC has it for floating point it's not
hugely useful yet

uniform real distribution is probably a horrible choice, and it might be good to randomise the number
of sf in each string also (currently the y all end up at max length)

Run on (4 X 3500 MHz CPU s)
CPU Caches:
  L1 Data 32K (x4)
  L1 Instruction 32K (x4)
  L2 Unified 262K (x4)
  L3 Unified 6291K (x1)
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Benchmark                                                                Time             CPU   Iterations
----------------------------------------------------------------------------------------------------------
RandFloats/double_from_string_sstream                                  804 ns          820 ns       896000
RandFloats/double_from_string_strtod                                   163 ns          162 ns      5973333
RandFloats/double_from_string_strtod_fixed                             175 ns          172 ns      5352107
RandFloats/double_from_string_strtod_fixed_const_ref                   150 ns          152 ns      5352107
RandFloats/double_from_string_std_from_chars                          87.1 ns         88.3 ns      9557333
RandFloatsComma/double_from_string_strtod_fixed_comma_ref              172 ns          173 ns      5146257
RandFloatsComma/double_from_string_strtod_fixed_comma_const_ref        180 ns          175 ns      5352107
2020-02-29 22:11:31 +13:00
benchmarks add micro benchmarking project, setup number parsing benchmark 2020-02-29 22:11:31 +13:00
cmake Export xlnt::xlnt target when installed. 2018-08-07 09:08:29 -04:00
docs generate man page from docs 2017-09-08 17:00:11 -04:00
include/xlnt bump copyright year to 2020 2020-02-08 12:12:59 -05:00
logo fix logo 2017-04-12 10:33:40 -04:00
python copyright year bump (2018) 2018-01-22 09:38:48 -05:00
samples Run documentation samples on Appveyor 2018-07-28 17:59:11 +12:00
source Parse inlineStr values 2020-02-25 14:32:14 -05:00
tests Parse inlineStr values 2020-02-25 14:32:14 -05:00
third-party update utfcpp to 3.1 2019-12-26 12:51:52 -05:00
.appveyor.yml Actually build samples + benchmarks on appveyor 2018-07-28 18:13:56 +12:00
.clang-format clang-format all source files, fix broken test helpers--lots of cleanup necessary as a result [ci skip] 2016-12-24 10:04:57 -05:00
.gitattributes clean up gitattributes 2016-11-09 17:24:47 -05:00
.gitignore clean up cmake files and add d suffix to xlnt debug library, closes #214 2017-09-08 14:33:18 -04:00
.gitmodules use externalproject instead of git submodules for dependencies 2017-03-02 08:41:17 -05:00
.travis.yml Add GCC 5 to the build matrix, update comments about what each build is 2018-09-15 19:44:19 +12:00
AUTHORS.md Adding tpmccallum 2017-05-04 11:59:33 +10:00
book.json generate man page from docs 2017-09-08 17:00:11 -04:00
CHANGELOG.md start working on documentation [ci skip] 2017-04-12 10:17:26 -04:00
CMakeLists.txt Added CTest support 2019-07-17 12:09:07 -05:00
CODE_OF_CONDUCT.md Create CODE_OF_CONDUCT.md 2017-09-08 23:09:35 -04:00
CONTRIBUTING.md Clarify how to contribute to the project 2016-09-07 18:36:36 -04:00
LICENSE.md copyright year bump (2018) 2018-01-22 09:38:48 -05:00
README.md fix gitbook link/badge (point to legacy for now) 2018-07-22 22:23:01 -04:00
SUMMARY.md start working on documentation [ci skip] 2017-04-12 10:17:26 -04:00

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Introduction

xlnt is a modern C++ library for manipulating spreadsheets in memory and reading/writing them from/to XLSX files as described in ECMA 376 4th edition. The first public release of xlnt version 1.0 was on May 10th, 2017. Current work is focused on increasing compatibility, improving performance, and brainstorming future development goals. For a high-level summary of what you can do with this library, see the feature list. Contributions are welcome in the form of pull requests or discussions on the repository's Issues page.

Example

Including xlnt in your project, creating a new spreadsheet, and saving it as "example.xlsx"

#include <xlnt/xlnt.hpp>

int main()
{
    xlnt::workbook wb;
    xlnt::worksheet ws = wb.active_sheet();
    ws.cell("A1").value(5);
    ws.cell("B2").value("string data");
    ws.cell("C3").formula("=RAND()");
    ws.merge_cells("C3:C4");
    ws.freeze_panes("B2");
    wb.save("example.xlsx");
    return 0;
}
// compile with -std=c++14 -Ixlnt/include -lxlnt

Documentation

Documentation for the current release of xlnt is available here.

License

xlnt is released to the public for free under the terms of the MIT License. See LICENSE.md for the full text of the license and the licenses of xlnt's third-party dependencies. LICENSE.md should be distributed alongside any assemblies that use xlnt in source or compiled form.