c89stringutils

C89 is missing some nice things. As is MSVC. This adds the string related functionality for:

Windows
- MSVC 2005
- MSVC 2022 (should support all other versions also)
- MinGW
- Cygwin
- Open Watcom 2.0 (including DOS target)
SunOS
Linux
*BSD
macOS

Everything is hidden behind ifdefs so if the compiler/OS supports the function, that function will be used instead of the one provided by this library.

String functions implemented

Function	Citation
`strcasestr`	From MUSL
`strncasecmp`	Alias for MSVC's `_strnicmp`
`strcasecmp`	Alias for MSVC's `_stricmp`
`snprintf`	Mostly from WTF_StringExtras
`vsnprintf`	Mostly from WTF_StringExtras
`strnstr`	Mostly from WTF_StringExtras
`strerrorlen_s`	From Safe C Library
`asprintf`	From libressl-portable

Additionally jasprintf, a version of asprintf that concatenates on successive calls.

Dependencies

CMake (3.11 for MSVC 2005 or newer versions for other targets)
C compiler (any that work with CMake, and were released within the last 30 years)

Configure, build, and test

mkdir build && cd build
cmake ..
cmake --build .
ctest -C Debug

Script to automatically build

Build, test, and package for:

Cygwin;
MinGW (32-bit and 64-bit);
MSVC 2005 (32-bit and 64-bit);
MSVC 2022 (32-bit and 64-bit);
OpenWatcom's DOS target (16-bit).

…by running in Command Prompt: https://github.com/offscale/win-cmake-multi-build

(also handles upload to GitHub Releases)

Instructions for MSVC 2005

With cmake-3.11.4 specified, do:

mkdir build_msvc2005 && cd build_msvc2005
cmake-3.11.4-win64-x64\bin\cmake -DCMAKE_WARN_VS8=OFF -DCMAKE_BUILD_TYPE="Debug" -G "Visual Studio 8 2005" ..
cmake-3.11.4-win64-x64\bin\cmake --build .
cmake-3.11.4-win64-x64\bin\ctest -C Debug

(the last two commands can be run by opening the solution in Visual Studio 2005)

Alternatively with newer versions of CMake (tested 3.26.3):

mkdir build_msvc_nmake2005 && cd build_msvc_nmake2005
cmake -DCMAKE_BUILD_TYPE="Debug" -G "NMake Makefiles" ..
cmake --build .
ctest -C Debug

Instructions for Open Watcom (DOS target)

With v2 from https://github.com/open-watcom/open-watcom-v2/releases installed:

[path]\WATCOM\owsetenv.bat
mkdir build_dos && cd build_dos
cmake -G "Watcom WMake" -D CMAKE_SYSTEM_NAME "DOS" -D CMAKE_SYSTEM_PROCESSOR "I86" ..
cmake --build .
ctest -C Debug

(that test phase might fail if you're running this on a non-DOS host)

License

Licensed under either of

Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

offscale/c89stringutils