integer.h

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#ifndef PRISM_INTEGER_H
#define PRISM_INTEGER_H
 
#include "prism/compiler/inline.h"
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
 
typedef struct {
    uint32_t length;
 
    bool negative;
 
    union {
        uint32_t value[2];
 
        uint32_t *values;
    } words;
} pm_integer_t;
 
static PRISM_INLINE const uint32_t *
pm_integer_words(const pm_integer_t *integer, uint32_t *length) {
    *length = integer->length;
 
    if (integer->length <= 2) {
        return integer->words.value;
    } else {
        return integer->words.values;
    }
}
 
static PRISM_INLINE uint64_t
pm_integer_uint64_value(const pm_integer_t *integer) {
    return ((uint64_t) integer->words.value[1] << 32) | integer->words.value[0];
}
 
#endif