C++ with no standard lib

cmdline

g++ -v -std=c++11 -fno-exceptions -fno-rtti -nostdlib \
  /usr/lib/x86_64-linux-gnu/{Scrt1.o,crti.o} \
  /usr/lib/gcc/x86_64-linux-gnu/11/crtbeginS.o \
  example.cpp -o example \
  -lgcc \
  -Wl,--push-state -Wl,--as-needed -lgcc_s -Wl,--pop-state \
  -lc -lgcc \
  -Wl,--push-state -Wl,--as-needed -lgcc_s -Wl,--pop-state \
  /usr/lib/gcc/x86_64-linux-gnu/11/crtendS.o \
  /usr/lib/x86_64-linux-gnu/crtn.o

example.cpp

#include <cstdlib>
#include <cstdio>
#include <utility>

void* operator new(std::size_t size) {
    return std::malloc(size);
}

void operator delete(void* ptr) noexcept {
    std::free(ptr);
}

void* operator new[](std::size_t size) {
    return std::malloc(size);
}

void operator delete[](void* ptr) noexcept {
    std::free(ptr);
}

template <typename T>
class MyArray {
    T *data;
    std::size_t size;
public:
    explicit MyArray(std::size_t size) : data(new T[size]), size(size) {}
    ~MyArray() { delete[] data; }

    MyArray(const MyArray& other) = delete;
    MyArray& operator=(const MyArray& other) = delete;

    MyArray(MyArray&& other) noexcept : data(other.data), size(other.size) {
        other.data = nullptr;
        other.size = 0;
    }
    MyArray& operator=(MyArray&& other) noexcept {
        if (this != &other) {
            free(data);
            data = other.data;
            size = other.size;
            other.data = nullptr;
            other.size = 0;
        }
        return *this;
    }

    // Iterator implementation
    T* begin() const { return data; }
    T* end() const { return data + size; }

    T& operator[](size_t index) {
        return data[index];
    }
};

int main() {
    auto *array = new MyArray<int>{10};
    for (std::size_t i = 0; i < 10; i++) {
        (*array)[i] = i;
    }
    for (auto&& elem: *array) {
        printf("%d\n", elem);
    }
    MyArray<int> array2{std::move(*array)};
    for (auto&& elem: *array) {
        printf("%d\n", elem);
    }
    for (auto&& elem: array2) {
        printf("%d\n", elem);
    }
    return 0;
}

symbols.txt

Symbol table '.dynsym' contains 9 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND free@GLIBC_2.2.5 (2)
     2: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __libc_start_main@GLIBC_2.34 (3)
     3: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND _ITM_deregisterTMCloneTable
     4: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND printf@GLIBC_2.2.5 (2)
     5: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND __gmon_start__
     6: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND malloc@GLIBC_2.2.5 (2)
     7: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND _ITM_registerTMCloneTable
     8: 0000000000000000     0 FUNC    WEAK   DEFAULT  UND __cxa_finalize@GLIBC_2.2.5 (2)

Symbol table '.symtab' contains 53 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS Scrt1.o
     2: 000000000000038c    32 OBJECT  LOCAL  DEFAULT    4 __abi_tag
     3: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS crtstuff.c
     4: 00000000000010d0     0 FUNC    LOCAL  DEFAULT   16 deregister_tm_clones
     5: 0000000000001100     0 FUNC    LOCAL  DEFAULT   16 register_tm_clones
     6: 0000000000001140     0 FUNC    LOCAL  DEFAULT   16 __do_global_dtors_aux
     7: 0000000000004010     1 OBJECT  LOCAL  DEFAULT   26 completed.0
     8: 0000000000003db0     0 OBJECT  LOCAL  DEFAULT   22 __do_global_dtors_aux_fini_array_entry
     9: 0000000000001180     0 FUNC    LOCAL  DEFAULT   16 frame_dummy
    10: 0000000000003da8     0 OBJECT  LOCAL  DEFAULT   21 __frame_dummy_init_array_entry
    11: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS example.cpp
    12: 0000000000002004     1 OBJECT  LOCAL  DEFAULT   18 _ZStL19piecewise_construct
    13: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS crtstuff.c
    14: 00000000000022a4     0 OBJECT  LOCAL  DEFAULT   20 __FRAME_END__
    15: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS 
    16: 0000000000003db8     0 OBJECT  LOCAL  DEFAULT   23 _DYNAMIC
    17: 000000000000200c     0 NOTYPE  LOCAL  DEFAULT   19 __GNU_EH_FRAME_HDR
    18: 0000000000003fa8     0 OBJECT  LOCAL  DEFAULT   24 _GLOBAL_OFFSET_TABLE_
    19: 00000000000013b8    85 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiEC2Em
    20: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND free@GLIBC_2.2.5
    21: 00000000000014c6    46 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiED1Ev
    22: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND __libc_start_main@GLIBC_2.34
    23: 00000000000011a7    31 FUNC    GLOBAL DEFAULT   16 _ZdlPv
    24: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND _ITM_deregisterTMCloneTable
    25: 0000000000004000     0 NOTYPE  WEAK   DEFAULT   25 data_start
    26: 000000000000147e    72 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiEC2EOS0_
    27: 00000000000011c6    30 FUNC    GLOBAL DEFAULT   16 _Znam
    28: 0000000000004010     0 NOTYPE  GLOBAL DEFAULT   25 _edata
    29: 000000000000140e    36 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiEixEm
    30: 00000000000014f4     0 FUNC    GLOBAL HIDDEN    17 _fini
    31: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND printf@GLIBC_2.2.5
    32: 0000000000004000     0 NOTYPE  GLOBAL DEFAULT   25 __data_start
    33: 0000000000001432    21 FUNC    WEAK   DEFAULT   16 _ZNK7MyArrayIiE5beginEv
    34: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND __gmon_start__
    35: 0000000000004008     0 OBJECT  GLOBAL HIDDEN    25 __dso_handle
    36: 000000000000147e    72 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiEC1EOS0_
    37: 0000000000002000     4 OBJECT  GLOBAL DEFAULT   18 _IO_stdin_used
    38: 0000000000000000     0 FUNC    GLOBAL DEFAULT  UND malloc@GLIBC_2.2.5
    39: 00000000000011e4    31 FUNC    GLOBAL DEFAULT   16 _ZdaPv
    40: 0000000000004018     0 NOTYPE  GLOBAL DEFAULT   26 _end
    41: 00000000000010a0    38 FUNC    GLOBAL DEFAULT   16 _start
    42: 0000000000004010     0 NOTYPE  GLOBAL DEFAULT   26 __bss_start
    43: 0000000000001203   436 FUNC    GLOBAL DEFAULT   16 main
    44: 0000000000001448    36 FUNC    WEAK   DEFAULT   16 _ZNK7MyArrayIiE3endEv
    45: 000000000000146c    18 FUNC    WEAK   DEFAULT   16 _ZSt4moveIR7MyArrayIiEEONSt16remove_referenceIT_E4typeEOS4_
    46: 0000000000001189    30 FUNC    GLOBAL DEFAULT   16 _Znwm
    47: 00000000000014c6    46 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiED2Ev
    48: 0000000000004010     0 OBJECT  GLOBAL HIDDEN    25 __TMC_END__
    49: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND _ITM_registerTMCloneTable
    50: 00000000000013b8    85 FUNC    WEAK   DEFAULT   16 _ZN7MyArrayIiEC1Em
    51: 0000000000000000     0 FUNC    WEAK   DEFAULT  UND __cxa_finalize@GLIBC_2.2.5
    52: 0000000000001000     0 FUNC    GLOBAL HIDDEN    12 _init