Miscellaneous Utility Functions: Exo Reference Manual

## Miscellaneous Utility Functions Miscellaneous Utility Functions — Various utility functions |

## Functions

void | exo_noop ()
gint | exo_noop_one ()
gint | exo_noop_zero ()
gpointer | exo_noop_null ()
gboolean | exo_noop_true ()
gboolean | exo_noop_false ()
void | exo_atomic_inc ()
gboolean | exo_atomic_dec ()

## Includes

    #include <exo/exo.h>

## Description

This module contains various utility functions that extend the basic utility functions provided by the GLib library.

## Functions

### exo_noop ()

    void
    exo_noop (void);

This function has no effect. It does nothing but returning instantly. It is mostly useful in situations that require a function to be called, but that function does not need to do anything useful.

Since: 0.3.1

### exo_noop_one ()

    gint
    exo_noop_one (void);

This function has no effect but simply returns the integer value `1`. It is mostly useful in situations where you just need a function that returns `1`, but don't want to perform any other actions.

#### Returns

the integer value `1`.

Since: 0.3.1

### exo_noop_zero ()

    gint
    exo_noop_zero (void);

This function has no effect but simply returns the integer value `0`. It is mostly useful in situations where you just need a function that returns `0`, but don't want to perform any other actions.

#### Returns

the integer value `0`.

Since: 0.3.1

### exo_noop_null ()

    gpointer
    exo_noop_null (void);

This function has no effect but simply returns a `NULL` pointer. It is mostly useful in situations where you just need a function that returns `NULL`, but don't want to perform any other actions.

#### Returns

a `NULL` pointer.

Since: 0.3.1

### exo_noop_true ()

    gboolean
    exo_noop_true (void);

This function has no effect, but simply returns the boolean value `TRUE`. It is mostly useful in situations where you just need a function that returns `TRUE`, but don't want to perform any other actions.

#### Returns

the boolean value `TRUE`.

Since: 0.3.1

### exo_noop_false ()

    gboolean
    exo_noop_false (void);

This function has no effect, but simply returns the boolean value `FALSE`. It is mostly useful in situations where you just need a function that returns `FALSE`, but don't want to perform any other actions.

#### Returns

the boolean value `FALSE`.

Since: 0.3.1

### exo_atomic_inc ()

    void
    exo_atomic_inc (gint *value);

Increments the integer at `value` by one in an atomic fashion. The advantage over using `g_atomic_int_inc()` is that calls to this function can be inlined.

Since : 0.3.1

#### Parameters

value | a pointer to the integer value to increment. |

### exo_atomic_dec ()

    gboolean
    exo_atomic_dec (gint *value);

Decrements the integer at `value` by one in an atomic fashion and returns `TRUE` if the `value` dropped to zero by this operation, else `FALSE`. The advantage over using `g_atomic_int_dec()` is that calls to this function can be inlined.

#### Parameters

value | a pointer to the integer value to decrement. |

#### Returns

`TRUE` if `value` dropped to zero, else `FALSE`.

Since : 0.3.1

## Types and Values

## See Also

GLib Atomic Operations