maplewang / sweet.hpp

Nice sweet cpp header that help in daily life

SWEET_HPP

A bunch of header useful for daily life. The headers contain functionally for everyday life. The tests are usually the documentation.

Functionality	Documentation	Header	Test
Database Abstraction	sweetql.hpp	sweeql.hpp	here
Logging		logger.hpp	here
Asyc Logging		log.hpp	here
Unit testing	unit.hpp	unit.hpp	here
Design by Contract	dbc.hpp	dbc.hpp	here
Type Safe Comparison	compare.hpp	compare.hpp	here
Filesystem		filesystem.hpp	here
Fixed-point Types		fixed.hpp	here
int128		int128.hpp	here
Benchmarking	benchmark.hpp	benchmark.hpp	here
Json		sjson.hpp	here
Trie		trie.hpp
Base64		base64.hpp	here
bitset		bitset.hpp	here
Allocator		bllocator.hpp	here
Type Safe Conversation	conv.hpp	conv.hpp	here
Fixed Size Vector		fector.hpp	here
Fixed Size Map		fap.hpp	here
String formatting	format.hpp	format.hpp	here
Cmd line parser	options.hpp	options.hpp	here
Semaphore		semaphore.hpp
Stream helper functions		streamhelper.hpp
String helper functions		stringhelper.hpp
Sysinfo		sysinfo.hpp

Usage

To use the header, just make the sweet.hpp folder an include for your compiler.

unit.hpp

Extremely small unit testing framework with a lot of nice unit testing features. All assert macros also have a non unit test version usable in "normal" code. Also includes QuickCheck like functionality.

UNITTEST(InformativTestName) {
	// your test here
	AS_T(boolValue);
	AS_T_M(boolValue, "some msg");
	AS_T_C(boolValue, [&]() { /* your code here */ });
	AS_EQ(1, 54);
	AS_NEQ(1, 54);
	AS_NEQ_C(1, 54, [&](/* your code here */ ) { });
}

int main() {
	if(!sweet::Unit::runTests()) {
		std::cerr<<"Some errors occoured"<<std::endl;
	}
	return 0;
}

More examples in: here

format.hpp

Variadic template type safe printf string formatting functions. Internally it uses std::stream operation, so custom types can be used by creating custom opertor<<(std::ostream&, CustomType); functions.

std::string s = format("Hello %s", "World");
format(someOutputStream, "Hello %s", "World");

More examples in: here

logger.hpp

Easy to use logger.

void someRandomFunction() {
	LOG();
	LOG("Hello");
	LOG("Hello %s", "World");
}

More examples in: here

dbc.hpp

We have unittest maybe some Design by Contract might also help.

struct SomeStupidClass {
	int a = 0;
	int b = 9;

	INVARIANT_BEGIN
		Inv(RN(0,a,32));
		Inv(RN(0,b,10));
	INVARIANT_END

	inline void changeMethod() {
		Invariant(); // This makes the Invariant tested at the beginning and
					 //the end
		a = 33;		 	// this contradicts the invariant
	}
};

short testFunc(int a, double d, int* ip) {
	Rqr(RN(0,a,10), NaN(d), RN(0.0,d,1.0), NN(ip));
	// some cracy computation
	return Esr(RN(12, a +b *ip, 16));
}

void caller() {
	int a;
	int b = 9;
	short rslt = testFunc(9, 0.1, &a);
	SomeStupidClass ssc;
	ssc.changeMethod();
}

More examples in: here

benchmark.hpp

Benchmark structs that limits typing work, a Bench struct that stops time and a macro that stops time in a Compound Statement in a thread save manner.

#include <benchmark.hpp>

void fun() {
	BENCH(fun);
	...
}

int main() {
	sweet::Bench t; // Simple time stopping struct

	sweet::Benchmark::printResults(); // print results of BENCH marcos

	std::cout<<t.milli();
}

More examples in: here

sjson.hpp

Single header json parser with some bonus features like comments and multiline strings.

sweetql.hpp

single header sqlite3 wrapper that makes the conversion from sql table to class and back again extremely simple with minimal typing and speed overhead. Has an iterator interface that makes integration easy.

class ReservationPerson {
public:
	ReservationPerson() {}

	static SqlTable<ReservationPerson>& table() {
		static SqlTable<ReservationPerson> tab = 
			SqlTable<ReservationPerson>::sqlTable("ReservationPerson",
			SqlColumn<ReservationPerson>("Firstname", makeAttr(&ReservationPerson::firstname))
			SqlColumn<ReservationPerson>("age", makeAttr(&ReservationPerson::age))
		);

		return tab;
	};

	std::string firstname;
	long age;
};

...

	Sqlite3 dbImpl("dbfilename.db");
	SweetQL<Sqlite3> db(dbImpl);

	auto sel(db.select<ReservationPerson>());
	std::for_each(sel.first, sel.second, [&toDel](const ReservationPerson& p) {
	});

More examples in: here

options.hpp

A single header cmd line option parser. With automatic type conversation, short and long option names and pretty help printing.

Examples in: here

compare.hpp

With this header you can make type safe comparisons without taking care of the types of the values compared.

bool eq = sweet::equal(1337u,1337)
bool neq = sweet::notEqual(1337u,1337)

Examples in: here

conv.hpp

A D like "to" function thats safely converts single value types to another value type.

int a = to<int>("some int value as string");
std::string a = to<std::string>(a);

More examples in: here

sweetcpp.py

Tests if a given cpp file follows some random style rules

g2cpp.py

Hand in a gtk glade file and get a class in a header file that builds that widget and has protected data member pointing to all the widgets in the glade file. On top of that a cast operator is implemented that casts the class to the type of the top widget.

trie.hpp

A trie implementation that is ""not yet"" stl quality but does work.

Contributions

Always welcome!