user: What is the c source code of the assembly code below?

```asm
<test_ft_memcpy>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  lea    D128(%rip),%rdi
  call   <puts@plt>
  lea    D1(%rip),%rdi
  mov    $0x0,%eax
  call   <_it@plt>
  mov    $0x1,%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  movb   $0x0,(%rax)
  mov    $0x0,%edx
  lea    D148(%rip),%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <ft_memcpy@plt>
  mov    $0x0,%eax
  call   <_begin_assert@plt>
  cmpb   $0x0,(%rbx)
  jne    L49
  mov    $0x10,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  mov    $0x10,%edx
  lea    D105(%rip),%rbx
  mov    %rbx,%rsi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <ft_memcpy@plt>
  mov    $0x0,%eax
  call   <_begin_assert@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <strcmp@plt>
  mov    %eax,%ebx
  test   %eax,%eax
  jne    L46
  lea    D61(%rip),%rdi
  mov    $0x0,%eax
  call   <_it@plt>
  mov    $0x5,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  mov    $0x0,%eax
  call   <_begin_assert@plt>
  mov    $0x5,%edx
  lea    D105(%rip),%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <ft_memcpy@plt>
  cltq
  cmp    %rax,%rbp
  je     L6
  mov    $0x0,%eax
  call   <_fail_test@plt>
  mov    $0x1f,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    $0x67,%edx
  lea    D88(%rip),%rsi
  lea    D57(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    $0x5,%edx
  lea    D105(%rip),%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <ft_memcpy@plt>
  mov    %eax,%esi
  mov    %rbp,%rdx
  lea    D64(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%ebx
  jmp    L43
L49:
  mov    $0x0,%eax
  call   <_fail_test@plt>
  mov    $0x1f,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    $0x5e,%edx
  lea    D88(%rip),%rsi
  lea    D57(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    $0x1,%ebx
L43:
  mov    %ebx,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L46:
  mov    $0x0,%eax
  call   <_fail_test@plt>
  mov    $0x1f,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    $0x63,%edx
  lea    D88(%rip),%rsi
  lea    D57(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%edi
  mov    $0x0,%eax
  call   <_color@plt>
  mov    %rbp,%rdx
  lea    D105(%rip),%rsi
  lea    D8(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%ebx
  jmp    L43
L6:
  mov    $0x0,%eax
  call   <_close_pending@plt>
  mov    $0xa,%edi
  call   <putchar@plt>
  jmp    L43
```

tool_calls: name: disassemble_data
arguments: tag: D128
type: string
name: disassemble_data
arguments: tag: D1
type: string
name: disassemble_data
arguments: tag: D148
type: string
name: disassemble_data
arguments: tag: D105
type: string
name: disassemble_data
arguments: tag: D61
type: string
name: disassemble_data
arguments: tag: D88
type: string
name: disassemble_data
arguments: tag: D57
type: string
name: disassemble_data
arguments: tag: D64
type: string
name: disassemble_data
arguments: tag: D8
type: string

tool: D128: ft_memcpy

tool: D1: should copy n bytes from memory area src to memory area dst.

tool: D148: a

tool: D105: je sais pas std

tool: D61: should return the original value of dst

tool: D88: test_ft_memcpy

tool: D57: 
failure in %s() line %d


tool: D64: expected %p to equal %p



tool: D8: expected "%s" to equal "%s"



assistant: ```c
int test_ft_memcpy() {
  void *src;
  void *dst1;
  printf("%s\n", __func__ + 5);
  _it("should copy n bytes from memory area src to memory area dst.");
  dst1 = malloc(1);
  memset(dst1, 0, 1);
  ft_memcpy(dst1, "a", 0);
  do {
    _begin_assert();
    if (!(!((char *)dst1)[0])) {
      _fail_test();
      do {
        _color(31);
        printf("\nfailure in %s() line %d\n", __func__, 94);
        _color(0);
      } while (0);
      return 1;
    }
  } while (0);
  src = "je sais pas std";
  dst1 = malloc(strlen(src) + 1);
  ft_memcpy(dst1, src, strlen(src) + 1);
  do {
    _begin_assert();
    if (strcmp(src, dst1)) {
      _fail_test();
      do {
        _color(31);
        printf("\nfailure in %s() line %d\n", __func__, 99);
        _color(0);
      } while (0);
      printf("expected \"%s\" to equal \"%s\"\n\n", (char *)src, (char *)dst1);
      return 1;
    }
  } while (0);
  _it("should return the original value of dst");
  dst1 = malloc(5);
  do {
    _begin_assert();
    if (ft_memcpy(dst1, src, 5) != dst1) {
      _fail_test();
      do {
        _color(31);
        printf("\nfailure in %s() line %d\n", __func__, 103);
        _color(0);
      } while (0);
      printf("expected %p to equal %p\n\n", ft_memcpy(dst1, src, 5), dst1);
      return 1;
    }
  } while (0);
  do {
    _close_pending();
    printf("\n");
    return (0);
  } while (0);
}
```