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include
boot
filesystem
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abi.h
assert.h
atomic.hpp
bitmap.hpp
cargs.h
convert.h
cpu.hpp
crc32.h
cstring
cwalk.h
debug.h
disk.hpp
display.hpp
driver.hpp
dumper.hpp
elf.h
exec.hpp
filesystem.hpp
gui.hpp
hashmap.hpp
interrupts.hpp
io.h
ipc.hpp
kconfig.hpp
limits.h
lock.hpp
md5.h
memory.hpp
msexec.h
pci.hpp
power.hpp
printf.h
rand.hpp
recovery.hpp
smartptr.hpp
smp.hpp
std.hpp
stddef.h
stdint.h
string.hpp
symbols.hpp
sys.h
syscalls.hpp
task.hpp
time.hpp
types.h
uart.hpp
vector.hpp
.gitignore
DAPI.hpp
Doxyfile
Fex.hpp
KConfig.cpp
KThread.cpp
Kernel.cpp
LICENSE
Makefile
README.md
dump.sh
ipc.h
kernel.h
syscalls.h
234 lines
6.8 KiB
C++
234 lines
6.8 KiB
C++
#ifndef __FENNIX_KERNEL_STRING_H__
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#define __FENNIX_KERNEL_STRING_H__
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#include <types.h>
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#include <convert.h>
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#include <debug.h>
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// show debug messages
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// #define DEBUG_CPP_STRING 1
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#ifdef DEBUG_CPP_STRING
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#define strdbg(m, ...) debug(m, ##__VA_ARGS__)
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#else
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#define strdbg(m, ...)
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#endif
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// TODO: Somewhere the delete is called twice, causing a double free error.
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/**
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* @brief String class
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* String class that can be used to store strings.
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*/
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class String
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{
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private:
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char *m_Data;
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int m_Length;
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int m_Capacity;
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public:
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String(const char *Str = "")
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{
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this->m_Length = strlen(Str);
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this->m_Capacity = this->m_Length + 1;
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this->m_Data = new char[m_Capacity];
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strcpy(m_Data, Str);
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strdbg("New string created: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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}
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~String()
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{
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strdbg("String deleted: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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delete[] this->m_Data;
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}
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int length() const
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{
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strdbg("String length: %d", this->m_Length);
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return this->m_Length;
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}
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int capacity() const
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{
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strdbg("String capacity: %d", this->m_Capacity);
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return this->m_Capacity;
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}
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const char *c_str() const
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{
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strdbg("String data: \"%s\"", this->m_Data);
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return this->m_Data;
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}
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void resize(int NewLength)
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{
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strdbg("String resize: %d", NewLength);
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if (NewLength > this->m_Capacity)
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{
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int newCapacity = NewLength + 1;
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char *newData = new char[newCapacity];
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strcpy(newData, this->m_Data);
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strdbg("old: %#lx, new: %#lx", this->m_Data, newData);
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delete[] this->m_Data;
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this->m_Data = newData;
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this->m_Capacity = newCapacity;
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}
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this->m_Length = NewLength;
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this->m_Data[m_Length] = '\0';
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strdbg("String resized: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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}
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void concat(const String &Other)
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{
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int NewLength = this->m_Length + Other.m_Length;
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this->resize(NewLength);
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strcat(m_Data, Other.m_Data);
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strdbg("String concatenated: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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}
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String operator+(const String &Other) const
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{
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String result = *this;
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result.concat(Other);
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strdbg("String added: \"%s\" (data: %#lx, length: %d, capacity: %d)", result.m_Data, result.m_Data, result.m_Length, result.m_Capacity);
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return result;
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}
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String operator+(const char *Other) const
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{
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String result = *this;
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result.concat(Other);
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strdbg("String added: \"%s\" (data: %#lx, length: %d, capacity: %d)", result.m_Data, result.m_Data, result.m_Length, result.m_Capacity);
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return result;
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}
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/* warning: implicitly-declared ‘constexpr String::String(const String&)’ is deprecated [-Wdeprecated-copy] */
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String &operator=(const String &Other) = default;
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// String &operator=(const String &Other)
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// {
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// if (this != &Other)
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// {
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// delete[] this->m_Data;
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// this->m_Data = Other.m_Data;
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// this->m_Length = Other.m_Length;
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// this->m_Capacity = Other.m_Capacity;
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// strdbg("String assigned: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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// }
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// return *this;
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// }
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String &operator=(const char *Other)
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{
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this->m_Length = strlen(Other);
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this->m_Capacity = this->m_Length + 1;
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delete[] this->m_Data;
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this->m_Data = new char[m_Capacity];
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strcpy(m_Data, Other);
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strdbg("String assigned: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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return *this;
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}
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String &operator<<(const String &Other)
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{
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this->concat(Other);
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strdbg("String appended: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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return *this;
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}
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String &operator<<(const char *Other)
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{
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this->concat(Other);
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strdbg("String appended: \"%s\" (data: %#lx, length: %d, capacity: %d)", this->m_Data, this->m_Data, this->m_Length, this->m_Capacity);
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return *this;
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}
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char &operator[](int Index)
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{
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strdbg("String index: %d", Index);
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return this->m_Data[Index];
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}
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const char &operator[](int Index) const
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{
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strdbg("String index: %d", Index);
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return this->m_Data[Index];
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}
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bool operator==(const String &Other) const
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{
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strdbg("String compared: \"%s\" == \"%s\"", this->m_Data, Other.m_Data);
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return strcmp(this->m_Data, Other.m_Data) == 0;
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}
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bool operator!=(const String &Other) const
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{
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strdbg("String compared: \"%s\" != \"%s\"", this->m_Data, Other.m_Data);
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return strcmp(this->m_Data, Other.m_Data) != 0;
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}
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bool operator==(const char *Other) const
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{
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strdbg("String compared: \"%s\" == \"%s\"", this->m_Data, Other);
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return strcmp(this->m_Data, Other) == 0;
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}
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bool operator!=(const char *Other) const
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{
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strdbg("String compared: \"%s\" != \"%s\"", this->m_Data, Other);
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return strcmp(this->m_Data, Other) != 0;
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}
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class Iterator
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{
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private:
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char *m_Pointer;
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public:
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Iterator(char *Pointer) : m_Pointer(Pointer) {}
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Iterator &operator++()
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{
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++this->m_Pointer;
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strdbg("String iterator incremented: %#lx", this->m_Pointer);
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return *this;
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}
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char &operator*()
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{
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strdbg("String iterator dereferenced: %#lx", this->m_Pointer);
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return *this->m_Pointer;
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}
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bool operator!=(const Iterator &Other) const
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{
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strdbg("String iterator compared: %#lx != %#lx", this->m_Pointer, Other.m_Pointer);
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return this->m_Pointer != Other.m_Pointer;
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}
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bool operator==(const Iterator &Other) const
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{
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strdbg("String iterator compared: %#lx == %#lx", this->m_Pointer, Other.m_Pointer);
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return this->m_Pointer == Other.m_Pointer;
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}
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};
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Iterator begin()
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{
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strdbg("String iterator begin: %#lx", this->m_Data);
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return Iterator(this->m_Data);
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}
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Iterator end()
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{
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strdbg("String iterator end: %#lx", this->m_Data + this->m_Length);
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return Iterator(this->m_Data + this->m_Length);
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}
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};
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#endif // !__FENNIX_KERNEL_STRING_H__
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