mirror of
https://github.com/cc65/cc65.git
synced 2024-05-28 16:41:40 +00:00
122 lines
4.5 KiB
C
122 lines
4.5 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* intptrstack.h */
|
|
/* */
|
|
/* Integer+ptr stack used for program settings */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 2017, Mega Cat Studios */
|
|
/* */
|
|
/* */
|
|
/* This software is provided 'as-is', without any expressed or implied */
|
|
/* warranty. In no event will the authors be held liable for any damages */
|
|
/* arising from the use of this software. */
|
|
/* */
|
|
/* Permission is granted to anyone to use this software for any purpose, */
|
|
/* including commercial applications, and to alter it and redistribute it */
|
|
/* freely, subject to the following restrictions: */
|
|
/* */
|
|
/* 1. The origin of this software must not be misrepresented; you must not */
|
|
/* claim that you wrote the original software. If you use this software */
|
|
/* in a product, an acknowledgment in the product documentation would be */
|
|
/* appreciated but is not required. */
|
|
/* 2. Altered source versions must be plainly marked as such, and must not */
|
|
/* be misrepresented as being the original software. */
|
|
/* 3. This notice may not be removed or altered from any source */
|
|
/* distribution. */
|
|
/* */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef INTPTRSTACK_H
|
|
#define INTPTRSTACK_H
|
|
|
|
|
|
|
|
#include "inline.h"
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Data */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
typedef struct IntPtrStack IntPtrStack;
|
|
struct IntPtrInner {
|
|
long val;
|
|
void *ptr;
|
|
};
|
|
struct IntPtrStack {
|
|
unsigned Count;
|
|
struct IntPtrInner Stack[8];
|
|
};
|
|
|
|
/* An initializer for an empty int stack */
|
|
#define STATIC_INTPTRSTACK_INITIALIZER { 0, { 0, 0 }, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0} } }
|
|
|
|
/* Declare an int stack with the given value as first element */
|
|
#define INTPTRSTACK(Val, Ptr) { 1, { {Val, Ptr}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0} } }
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Code */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
#if defined(HAVE_INLINE)
|
|
INLINE int IPS_IsFull (const IntPtrStack* S)
|
|
/* Return true if there is no space left on the given int stack */
|
|
{
|
|
return (S->Count >= sizeof (S->Stack) / sizeof (S->Stack[0]));
|
|
}
|
|
#else
|
|
# define IPS_IsFull(S) ((S)->Count >= sizeof ((S)->Stack) / sizeof ((S)->Stack[0]))
|
|
#endif
|
|
|
|
#if defined(HAVE_INLINE)
|
|
INLINE int IPS_IsEmpty (const IntPtrStack* S)
|
|
/* Return true if there are no values on the given int stack */
|
|
{
|
|
return (S->Count == 0);
|
|
}
|
|
#else
|
|
# define IPS_IsEmpty(S) ((S)->Count == 0)
|
|
#endif
|
|
|
|
#if defined(HAVE_INLINE)
|
|
INLINE unsigned IPS_GetCount (const IntPtrStack* S)
|
|
/* Return the number of elements on the given int stack */
|
|
{
|
|
return S->Count;
|
|
}
|
|
#else
|
|
# define IPS_GetCount(S) (S)->Count
|
|
#endif
|
|
|
|
void IPS_Get (const IntPtrStack* S, long *Val, void **Ptr);
|
|
/* Get the value on top of an int stack */
|
|
|
|
void IPS_Set (IntPtrStack* S, long Val, void *Ptr);
|
|
/* Set the value on top of an int stack */
|
|
|
|
void IPS_Drop (IntPtrStack* S);
|
|
/* Drop a value from an int stack */
|
|
|
|
void IPS_Push (IntPtrStack* S, long Val, void *Ptr);
|
|
/* Push a value onto an int stack */
|
|
|
|
void IPS_Pop (IntPtrStack* S, long *Val, void **Ptr);
|
|
/* Pop a value from an int stack */
|
|
|
|
|
|
|
|
/* End of IntPtrStack.h */
|
|
|
|
#endif
|