template.h File Reference

#include <stdbool.h>
#include <stddef.h>
#include <derive-c/core.h>
#include <derive-c/panic.h>
#include <derive-c/self.h>

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Classes
struct	SELF

Macros
#define	T   derive_c_parameter_t
#define	T_DELETE   derive_c_parameter_t_delete

Functions
static SELF	from (T value)
static SELF	empty ()
static T *	get (SELF *self)
static T const *	get_const (SELF const *self)
static bool	is_present (SELF const *self)
static void	delete (SELF *self)
static bool	replace (SELF *self, T value)

Macro Definition Documentation

T

#define T   derive_c_parameter_t

Definition at line 18 of file template.h.

T_DELETE

#define T_DELETE   derive_c_parameter_t_delete

Definition at line 20 of file template.h.

Function Documentation

delete()

void delete ( SELF * self )

static

Definition at line 60 of file template.h.

                                           {
    DEBUG_ASSERT(self);
    if (self->present) {
        T_DELETE(&self->value);
    }
}

empty()

SELF empty ( )

static

Definition at line 37 of file template.h.

{ return (SELF){.present = false}; }

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from()

SELF from ( T value )

static

Definition at line 35 of file template.h.

{ return (SELF){.value = value, .present = true}; }

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get()

T * get ( SELF * self )

static

Definition at line 39 of file template.h.

                                      {
    DEBUG_ASSERT(self);
    if (self->present) {
        return &self->value;
    }
    return NULL;
}

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get_const()

T const * get_const ( SELF const * self )

static

Definition at line 47 of file template.h.

                                                        {
    DEBUG_ASSERT(self);
    if (self->present) {
        return &self->value;
    }
    return NULL;
}

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is_present()

bool is_present ( SELF const * self )

static

Definition at line 55 of file template.h.

                                                     {
    DEBUG_ASSERT(self);
    return self->present;
}

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replace()

bool replace ( SELF * self, T value )

static

Definition at line 67 of file template.h.

                                                     {
    DEBUG_ASSERT(self);
    bool was_present;
    if (self->present) {
        T_DELETE(&self->value);
        was_present = true;
    } else {
        was_present = false;
    }
    self->value = value;
    self->present = true;
    return was_present;
}

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