add a Buffer and WASI build support

This commit is contained in:
Fries 2023-06-24 00:02:39 -07:00
parent 95df0a0321
commit 3dcb5197cb
8 changed files with 110 additions and 11 deletions

2
.gitignore vendored
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@ -1,2 +1,2 @@
.cache
/build
/build*

8
.vscode/launch.json vendored
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@ -11,6 +11,14 @@
"program": "${command:cmake.launchTargetPath}",
"args": [],
"cwd": "${workspaceFolder}",
},
{
"type": "lldb",
"request": "launch",
"name": "Debug (WASM)",
"program": "wasmtime",
"args": ["run", "-g", "${command:cmake.launchTargetPath}"],
"cwd": "${workspaceFolder}",
}
]
}

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@ -4,6 +4,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(CMAKE_CXX_STANDARD 20)
option(BUILD_WITH_MODULES "Build with C++ Modules" ON)
option(BUILD_WITH_EXCEPTIONS "Build with C++ Exceptions" ON)
if(BUILD_WITH_MODULES)
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
@ -23,7 +24,10 @@ if(BUILD_WITH_MODULES)
set(CMAKE_CXX_EXTENSIONS OFF)
endif()
if(NOT BUILD_WITH_EXCEPTIONS)
add_compile_options(-fno-exceptions)
endif()
set(CMAKE_EXECUTABLE_SUFFIX ${EXECUTABLE_SUFFIX})
add_subdirectory(src)

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@ -0,0 +1,14 @@
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_SYSTEM_PROCESSOR wasm32)
set(triple wasm32-wasi)
set(EXECUTABLE_SUFFIX .wasm)
set(CMAKE_C_COMPILER clang)
set(CMAKE_CXX_COMPILER clang++)
set(CMAKE_C_COMPILER_TARGET ${triple})
set(CMAKE_CXX_COMPILER_TARGET ${triple})
set(CMAKE_SYSROOT /usr/share/wasi-sysroot)
set(BUILD_WITH_EXCEPTIONS false)
add_compile_options(-fexperimental-library)

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@ -11,9 +11,12 @@ add_executable(inheritance inheritance.cc)
add_executable(enumerations enumerations.cc)
add_executable(namespaces namespaces.cc)
add_executable(FunctionArguments FunctionArguments.cc)
add_executable(exceptions exceptions.cc)
if (BUILD_WITH_EXCEPTIONS)
add_executable(exceptions exceptions.cc)
endif()
add_executable(HeapMemory HeapMemory.cc)
add_executable(AbstractClasses AbstractClasses.cc)
add_executable(vector vector.cc)
add_executable(Vector2 Vector2.cc)
add_executable(TemplateVector TemplateVector.cc)
add_executable(buffer buffer.cc)

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@ -2,6 +2,7 @@
#include <format>
#include <iostream>
#include <stdexcept>
template <typename T>
class Vector {
private:
@ -22,11 +23,11 @@ public:
T& operator[](int i)
{
if (i < 0 || size() <= i) {
#if __cpp_exceptions == 199711
#if __cpp_exceptions == 199711
throw std::out_of_range { "Vector::operator[]" };
#else
#else
std::exit(1);
#endif
#endif
}
return elem[i];

60
src/buffer.cc Normal file
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@ -0,0 +1,60 @@
#include <format>
#include <iostream>
#include <stdexcept>
#include <string>
template <typename T, int S>
class Buffer {
public:
constexpr int size()
{
return S;
}
T& operator[](int i)
{
if (i < 0 || size() <= i) {
#if __cpp_exceptions == 199711
throw std::out_of_range { "Vector::operator[]" };
#else
std::exit(1);
#endif
}
return elem[i];
}
T* begin()
{
return &elem[0];
}
T* end()
{
return &elem[0] + size();
}
private:
T elem[S];
};
int main()
{
Buffer<double, 5> doubleBuffer;
Buffer<std::string, 5> stringBuffer;
for (int i = 0; i < doubleBuffer.size(); i++) {
doubleBuffer[i] = i;
}
for (int i = 0; i < stringBuffer.size(); i++) {
stringBuffer[i] = std::format("this is element {}", i);
}
for (double i : doubleBuffer) {
std::cout << i << std::endl;
}
for (std::string i : stringBuffer) {
std::cout << i << std::endl;
}
}

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@ -22,14 +22,15 @@ public:
: elem(new double[a.sz])
, sz { a.sz }
{
for (int i = 0; i!=sz;++i) {
for (int i = 0; i != sz; ++i) {
elem[i] = a.elem[i];
}
}
Vector& operator=(const Vector& a) {
Vector& operator=(const Vector& a)
{
double* p = new double[a.sz];
for (int i =0; i!=sz; ++i) {
for (int i = 0; i != sz; ++i) {
p[i] = a.elem[i];
}
delete[] elem;
@ -40,16 +41,24 @@ public:
double& operator[](int i)
{
if (i < 0 || i > size() - 1) {
if (i < 0 || size() <= i) {
#if __cpp_exceptions == 199711
throw std::out_of_range { "Vector::operator[]" };
#else
std::exit(1);
#endif
}
return elem[i];
}
void print_element(int i)
{
if (i < 0 || i > size() - 1) {
if (i < 0 || size() <= i) {
#if __cpp_exceptions == 199711
throw std::out_of_range { "Vector::print_element(int i)" };
#else
std::exit(1);
#endif
}
std::cout << std::format("element[{}] : {}", i, elem[i]) << std::endl;
}