An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

spack.io "cpp98" keyword

span-lite 0.11.0
A single-file header-only version of a C++20-like span for C++98, C++11 and later
10 versions - Latest release: almost 2 years ago - 504 stars on GitHub
optional-lite 3.6.0
A single-file header-only version of a C++17-like optional, a nullable object for C++98, C++11 a...
10 versions - Latest release: almost 2 years ago - 413 stars on GitHub
utf8cpp 4.0.6
A simple, portable and lightweight generic library for handling UTF-8 encoded strings.
3 versions - Latest release: about 1 year ago - 1 dependent package - 1,802 stars on GitHub
byte-lite 0.3.0
byte lite - A C++17-like byte type for C++98, C++11 and later in a single-file header-only library
1 version - Latest release: over 1 year ago - 58 stars on GitHub
gsl-lite
A single-file header-only version of ISO C++ Guidelines Support Library (GSL) for C++98, C++11, a...
Latest release: 17 days ago - 956 stars on GitHub - 4 maintainers
string-view-lite 1.7.0
A single-file header-only version of a C++17-like string_view for C++98, C++11 and later
6 versions - Latest release: almost 3 years ago - 361 stars on GitHub