parent
2ec0a5ba7a
commit
873fe958fd
GPG Key ID:
284488987C31F630
@ -0,0 +1,117 @@
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# Generic C and C++ Makefile project template
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# Contains targets for `release', `debug', and `clean'.
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PROJECT=project
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AUTHOR=Avril (Flanchan) <flanchan@cumallover.me>
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VERSION=0.0.0
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SRC_C = $(wildcard src/*.c)
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SRC_CXX = $(wildcard src/*.cpp)
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INCLUDE=include
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# Link to these libraries dynamicalls
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SHARED_LIBS=
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# Link to these libraries statically
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STATIC_LIBS=
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override __VERSION_SPLIT:= $(subst ., ,$(VERSION))
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override __VERSION_REVISION:=$(word 3,$(__VERSION_SPLIT)) 0
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override __VERSION_SPLIT:= MAJOR:$(word 1,$(__VERSION_SPLIT)) MINOR:$(word 2,$(__VERSION_SPLIT)) BUGFIX:$(word 1,$(subst r, ,$(__VERSION_REVISION))) REVISION:$(word 2,$(subst r, ,$(__VERSION_REVISION))) REVISION_STRING:$(word 3,$(__VERSION_SPLIT))
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COMMON_FLAGS+= -W -Wall -Wstrict-aliasing -fno-strict-aliasing $(addprefix -I,$(INCLUDE))
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COMMON_FLAGS+= $(addprefix -D_VERSION_,$(subst :,=,$(__VERSION_SPLIT))) '-D_VERSION="$(VERSION)"'
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# Target arch. Set to blank for generic
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ARCH?=native
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# Enable OpenMP and loop parallelisation? (dyn-links to openmp)
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PARALLEL?=yes
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OPT_FLAGS?= -fgraphite \
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-floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-block \
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-fno-stack-check
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ifneq ($(ARCH),)
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OPT_FLAGS+= $(addprefix -march=,$(ARCH))
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endif
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ifeq ($(PARALLEL),yes)
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OPT_FLAGS+= -fopenmp -floop-parallelize-all -ftree-parallelize-loops=4
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endif
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CXX_OPT_FLAGS?= $(OPT_FLAGS) -felide-constructors
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CSTD?=gnu2x
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CXXSTD?=gnu++23
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CFLAGS += $(COMMON_FLAGS) --std=$(CSTD)
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CXXFLAGS += $(COMMON_FLAGS) --std=$(CXXSTD)
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LDFLAGS += $(addsuffix .a,$(addprefix -l:lib,$(STATIC_LIBS))) $(addprefix -l,$(SHARED_LIBS))
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STRIP=strip
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RELEASE_COMMON_FLAGS+= -Werror -fno-bounds-check
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DEBUG_COMMON_FLAGS+= -ggdb -gz -fanalyzer -ftrapv -fbounds-check
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ifneq ($(TARGET_SPEC_FLAGS),no)
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RELEASE_CFLAGS?= -O3 -flto $(OPT_FLAGS)
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RELEASE_CXXFLAGS?= -O3 -flto $(CXX_OPT_FLAGS)
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RELEASE_LDFLAGS?= -Wl,-O3 -Wl,-flto
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DEBUG_CFLAGS?= -Og
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DEBUG_CXXFLAGS?= -Og
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DEBUG_LDFLAGS?=
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endif
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DEBUG_CFLAGS+=-DDEBUG $(DEBUG_COMMON_FLAGS)
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DEBUG_CXXFLAGS+=-DDEBUG $(DEBUG_COMMON_FLAGS) -fasynchronous-unwind-tables
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RELEASE_CFLAGS+=-DRELEASE $(RELEASE_COMMON_FLAGS)
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RELEASE_CXXFLAGS+=-DRELEASE $(RELEASE_COMMON_FLAGS)
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# Objects
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OBJ_C = $(addprefix obj/c/,$(SRC_C:.c=.o))
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OBJ_CXX = $(addprefix obj/cxx/,$(SRC_CXX:.cpp=.o))
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OBJ = $(OBJ_C) $(OBJ_CXX)
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# Phonies
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.PHONY: release
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release: | dirs $(PROJECT)-release
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.PHONY: debug
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debug: | dirs $(PROJECT)-debug
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# Targets
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dirs:
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@mkdir -p obj/c{,xx}/src
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obj/c/%.o: %.c
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$(CC) -c $< $(CFLAGS) -o $@ $(LDFLAGS)
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obj/cxx/%.o: %.cpp
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$(CXX) -c $< $(CXXFLAGS) -o $@ $(LDFLAGS)
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$(PROJECT)-release: CFLAGS+= $(RELEASE_CFLAGS)
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$(PROJECT)-release: CXXFLAGS += $(RELEASE_CXXFLAGS)
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$(PROJECT)-release: LDFLAGS += $(RELEASE_LDFLAGS)
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$(PROJECT)-release: $(OBJ)
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$(CXX) $^ $(CXXFLAGS) -o $@ $(LDFLAGS)
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$(STRIP) $@
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$(PROJECT)-debug: CFLAGS+= $(DEBUG_CFLAGS)
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$(PROJECT)-debug: CXXFLAGS += $(DEBUG_CXXFLAGS)
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$(PROJECT)-debug: LDFLAGS += $(DEBUG_LDFLAGS)
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$(PROJECT)-debug: $(OBJ)
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$(CXX) $^ $(CXXFLAGS) -o $@ $(LDFLAGS)
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clean-rebuild:
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rm -rf obj
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clean: clean-rebuild
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rm -f $(PROJECT)-{release,debug,pgo}
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@ -0,0 +1,39 @@
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#pragma once
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#include <memory>
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#include <cstdint>
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struct Point {
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uint64_t x,y;
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};
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struct Line {
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Point start, end;
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};
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template<typename T>
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using Output = T* __restrict__;
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namespace Input {
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struct Parser {
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Parser(const char* string, size_t len) noexcept;
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template<size_t N>
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inline Parser(const char (&string)[N]) noexcept
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: Parser(string, N) {}
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Parser(Parser&&) noexcept;
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Parser(const Parser&) = delete;
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Parser& operator=(Parser&&) noexcept;
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Parser& operator=(const Parser&) = delete;
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bool try_read_next(Output<Line>);
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virtual ~Parser();
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private:
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struct _impl;
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std::unique_ptr<_impl> state_;
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};
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}
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@ -0,0 +1,120 @@
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#include <cstring>
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#include <input.h>
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namespace {
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template<typename T>
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[[gnu::pure]]
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inline T* gmemchr(T* ptr, char ch, size_t sz) noexcept {
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return (T*)memchr((void*)ptr, ch, sz * sizeof(T));
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}
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template<typename T>
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inline size_t gmemchr_s(T* ptr, char ch, size_t sz) noexcept {
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if(T* p = gmemchr(ptr, ch, sz)) return (size_t)(p - ptr);
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else return 0;
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}
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template<typename F> requires(std::is_invocable_v<F>)
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struct Defer {
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constexpr explicit Defer(std::nullptr_t) noexcept
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: f(nullptr) {}
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constexpr Defer(F&& func) noexcept(std::is_nothrow_move_constructible_v<F>)
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: f(std::make_unique<F>(std::move(func))) {}
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constexpr virtual ~Defer() noexcept(std::is_nothrow_invocable_v<F>) { if(f) (*f)(); }
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constexpr Defer(Defer&& m) noexcept
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: f(std::move(m.f)) {}
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constexpr Defer(const Defer& p) noexcept requires(std::is_copy_constructible_v<F>)
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: f(p.f ? *p.f : nullptr) {}
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constexpr Defer& operator=(Defer&& m) noexcept(std::is_nothrow_move_constructible_v<F>)
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{
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if(this != std::addressof(m)) {
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f = std::move(m.f);
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} return *this;
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}
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constexpr Defer& operator=(const Defer& c) noexcept(std::is_nothrow_copy_constructible_v<F>) requires(std::is_copy_constructible_v<F>)
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{
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if(this != std::addressof(m)) {
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if(c.f) f = std::make_unique<F>(*c.f);
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else f = nullptr;
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} return *this;
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}
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template<typename... Args>
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constexpr decltype(auto) operator()(Args&&... args) noexcept(std::is_nothrow_invocable_v<F, Args...>) requires(std::is_invocable_v<F, Args...>)
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{ return std::forward<std::invoke_result_t<F, Args...>>( (*f)() ); }
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private:
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std::unique_ptr<F> f;
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};
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template<typename F> requires(std::is_invocable_v<F>)
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constexpr auto defer_call(F&& func) noexcept(std::is_nothrow_move_constructible_v<F>) { return Defer<F>{std::move(func)}; }
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#define $CAT_(a, b) a ## b
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#define $CAT(a, b) $CAT_(a, b)
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#define $DEFER(...) const auto $CAT(_$__defer_, __LINE__) = ::defer_call( __VA_ARGS__ )
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}
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namespace Input {
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struct Parser::_impl {
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struct {
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const char* data;
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size_t len;
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} src;
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const char* cur_line;
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size_t cur_len;
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};
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Parser::Parser(const char* string, size_t len) noexcept
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: state_(std::make_unique<_impl>())
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{
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state_->cur_line = state_->src.data = string;
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state_->cur_len = state_->src.len = len;
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}
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Parser::~Parser() {}
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Parser::Parser(Parser&& p) noexcept
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: state_(std::move(p.state_)) {}
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Parser& Parser::operator=(Parser&& p) noexcept
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{
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if(this != std::addressof(p)) {
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state_ = std::move(p.state_);
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} return *this;
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}
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bool Parser::try_read_next(Output<Line> output)
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{
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const char* start = state_->cur_line;
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const char* end = gmemchr(start, '\n', state_->cur_len);
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if(!end) return false;
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size_t diff = (size_t)(end - state_->cur_line);
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if(diff > 1) {
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auto string = std::string_view{ start, gmemchr_s(start, ' ', diff - 1) };
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for(size_t i=0;
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string.size() && string.data() < end;
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i++,
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string = std::string_view{ start += string.size(), // start = start + last size
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gmemchr_s(start, ' ', diff - 1) // XXX: <-- this should be `start + string.size()`
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})
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{
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switch(i) {
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case 0: output->start = parse_point(string); break; // First point
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case 1: continue; // Arrow
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case 2: output->end = parse_point(string); break; // Second point
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case 3: continue; // Arrow
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default: goto le; // Next point, quit
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}
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}
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le:
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end = ((const char*)string.data()) + string.size();
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state_->cur_len = (size_t)(end - state_->cur_line); // TODO: Is this the correct length calculation? I don't think it is....
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state_->cur_line = end;
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return true;
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} else return false;
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}
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}
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Reference in new issue