element.h

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#ifndef CMR_ELEMENT_H
#define CMR_ELEMENT_H
 
#include <cmr/env.h>
 
#include <assert.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef int CMR_ELEMENT;
 
CMR_EXPORT
const char* CMRelementString(
  CMR_ELEMENT element,  
  char* buffer          
);
 
static inline
bool CMRelementIsValid(
  CMR_ELEMENT element 
)
{
  return element != 0;
}
 
static inline
CMR_ELEMENT CMRrowToElement(
  size_t row  
)
{
  return -1 - (int)row;
}
 
static inline
CMR_ELEMENT CMRcolumnToElement(
  size_t column  
)
{
  return 1 + (int)column;
}
 
static inline
bool CMRelementIsRow(
  CMR_ELEMENT element 
)
{
  return element < 0;
}
 
static inline
size_t CMRelementToRowIndex(
  CMR_ELEMENT element 
)
{
  assert(element < 0);
  return -1 - element;
}
 
static inline
bool CMRelementIsColumn(
  CMR_ELEMENT element 
)
{
  return element > 0;
}
 
static inline
size_t CMRelementToColumnIndex(
  CMR_ELEMENT element 
)
{
  assert(element > 0);
  return -1 + element;
}
 
static inline
CMR_ELEMENT CMRelementTranspose(
  CMR_ELEMENT element 
)
{
  return -element;
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* CMR_ELEMENT_H */