A single file header only C++ convenience wrapper around the libzstd compression/decompression functions.
We use std::vector<std::uint8_t> & std::string objects as memory containers, and pass them into the zstdpp::compress() and zstd::decompress() functions. These functions return a std::vector<std::uint8_t>, who's underlying data is either a compressed or decompressed version of the original.
There are also in-place versions of the functions, which take a preallocated memory buffer as an argument. This is useful if you're doing a lot of compression/decompression in a loop, and you want to avoid allocatins, which accept a std::string as argument, acting as a preallocated memory buffer to perform compression/decompression (instead of allocating a new buffer on each function call). This helps if you're doing a lot of compression/decompression in a loop.
#include <string>
#include <iostream>
#include "zstdpp.hpp"
int main() {
std::string input("this is a string that I want to compress into a smaller\n"
"string. Just to make sure there is enough data in the\n"
"compression buffer, I'm going to fill this string with a\n"
"decent amount of content. Let's hope this works.\n");
auto compressed = zstdpp::compress(input, 22);
auto decompressed = zstdpp::decompress(compressed);
}#include <string>
#include <iostream>
#include "zstdpp.hpp"
int main() {
std::string input("this is a string that I want to compress into a smaller\n"
"string. Just to make sure there is enough data in the\n"
"compression buffer, I'm going to fill this string with a\n"
"decent amount of content. Let's hope this works.\n");
// we're going to use the in-place functions, so we need to allocate a buffer
std::string buffer_compress{}, buffer_decompress{};
auto compressed_size = zstdpp::inplace::compress(input, buffer_compress, 22);
auto decompressed_size = zstdpp::inplace::decompress(buffer_compress, buffer_decompress);
}