static const int table[32] = {
    0, 1, 28, 2, 29, 14, 24, 3,
    30, 22, 20, 15, 25, 17, 4, 8,
    31, 27, 13, 23, 21, 19, 16, 7,
    26, 12, 18, 6, 11, 5, 10, 9
};

int lowest_set_bit(uint32_t v)
{
    return table[((v & -v) * 0x077CB531U) >> 27];
}

Flags::Read | Flags::Write

lea eax, [rdi + 3]

return x + 3;

lea eax, [rdi + rdi*4]

return x * 5;

float kahanSum(const float *nums, int count)
{
    float sum = 0.0f;
    float correction = 0.0f;

    for (int i = 0; i < count; ++i)
    {
        float adjusted = nums[i] - correction;
        float next = sum + adjusted;

        correction = (next - sum) - adjusted;
        sum = next;
    }

    return sum;
}

static int global;

void foo(void) {
    static int count;
    count++;
}

foo(); // count = 1
foo(); // count = 2
foo(); // count = 3

static void bar(void) {
}

static global variable -> скрыть символ внутри файла
static local variable  -> сохранить состояние между вызовами
static function        -> скрыть функцию внутри файла

int x = a + b * 2;

VarDecl
└── BinaryOperator +
    ├── a
    └── BinaryOperator *
        ├── b
        └── 2

clang++ -Xclang -ast-dump -fsyntax-only main.cpp

for (int i = 0; i < 100000; i++)
    strcat(buf, "chunk");

char *p = buf;

for (int i = 0; i < 100000; i++) {
    memcpy(p, "chunk", 5);
    p += 5;
}

uint32_t nonce = 0;

while (1) {
    header.nonce = nonce;
    hash = sha256(sha256(header));

    if (hash < target)
        break;

    nonce++;
}

foo(i++, i++);