(ANSI) C Reference – Data Types – Declarations

A look at the different data types and declarations that is possible in the C programming language.

---

char ->  character

---

int ->  integer

---

float ->  float(single precision)

---

double ->  float(double precision)

---

short ->  short (16 bit integer)

---

long ->  long (32 bit integer)

---

signed ->  positive and negative

---

unsigned ->  positive only

---

*int, *float, .. ->  pointer to int, float, ..

---

const ->  constant

---

enum ->  enumeration constant

---

extern ->  declare external variable

---

static ->  local to source file

---

register ->  register variable

---

void ->  no value

---

struct ->  structure

---

sizeof object ->  size of an object (type is size_t)

---

sizeof (type name) ->  size of a data-type (type is size_t)

---

typedef typename ->  create name by data-type

---