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36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
#pragma once
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#include "toy_common.h"
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#include "toy_value.h"
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typedef struct Toy_Stack { //32 | 64 BITNESS
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unsigned int capacity; //4 | 4
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unsigned int count; //4 | 4
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Toy_Value data[]; //- | -
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} Toy_Stack; //8 | 8
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TOY_API Toy_Stack* Toy_allocateStack(void);
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TOY_API void Toy_freeStack(Toy_Stack* stack);
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TOY_API void Toy_pushStack(Toy_Stack** stackHandle, Toy_Value value);
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TOY_API Toy_Value Toy_peekStack(Toy_Stack** stackHandle);
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TOY_API Toy_Value Toy_popStack(Toy_Stack** stackHandle);
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//some useful sizes, could be swapped out as needed
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#ifndef TOY_STACK_INITIAL_CAPACITY
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#define TOY_STACK_INITIAL_CAPACITY 8
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#endif
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#ifndef TOY_STACK_EXPANSION_RATE
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#define TOY_STACK_EXPANSION_RATE 2
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#endif
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#ifndef TOY_STACK_CONTRACTION_THRESHOLD
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#define TOY_STACK_CONTRACTION_THRESHOLD 4 // this integer means 'shrink when count drops below one-forth of capacity'
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#endif
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//prevent an infinite expansion, limited to 1MB
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#ifndef TOY_STACK_OVERFLOW_THRESHOLD
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#define TOY_STACK_OVERFLOW_THRESHOLD (1024 * 1024 / sizeof(Toy_Value) - sizeof(Toy_Stack))
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#endif
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