mmem.h

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#ifndef MMEM_H
#define MMEM_H

 
#if defined( MAUG_OS_PALM )
 
/* TODO */
#  pragma message( "warning: not implemented!" )
 
#elif defined( MAUG_OS_DOS_REAL )
 
typedef void* MAUG_MHANDLE;
 
/* TODO: These need refinement/tuning for DOS low-memory/segments! */
#  define maug_malloc( nmemb, sz ) (void*)malloc( (sz) * (nmemb) )

#  define maug_mrealloc( handle, nmemb, sz ) \
      (void*)realloc( handle, (sz) * (nmemb) )
 
#  define maug_mzero( ptr, sz ) memset( ptr, '\0', sz )
 
#  define maug_mcpy( ptr_dest, ptr_src, sz ) memcpy( ptr_dest, ptr_src, sz )
 
#  define maug_mfree( handle ) free( handle ); handle = NULL;
 
#  define maug_mlock( handle, ptr ) ptr = handle; handle = NULL;
 
#  define maug_munlock( handle, ptr ) handle = ptr; ptr = NULL;
 
#  define maug_strncpy( dest, src, len ) strncpy( dest, src, len )
 
#  define maug_strlen( str ) strlen( str )
 
#  define maug_is_locked( handle, ptr ) \
      (NULL == (handle) && NULL != (ptr))
 
#else
 
typedef void* MAUG_MHANDLE;
 
#  define maug_malloc( nmemb, sz ) (void*)malloc( (sz) * (nmemb) )

#  define maug_mrealloc( handle, nmemb, sz ) \
      (void*)realloc( handle, (sz) * (nmemb) )

#  define maug_mzero( ptr, sz ) memset( ptr, '\0', sz )
 
#  define maug_mcpy( ptr_dest, ptr_src, sz ) memcpy( ptr_dest, ptr_src, sz )
 
#  define maug_mfree( handle ) free( handle ); handle = NULL;
 
#  define maug_mlock( handle, ptr ) ptr = handle; handle = NULL;
 
#  define maug_munlock( handle, ptr ) handle = ptr; ptr = NULL;
 
#  define maug_strncpy( dest, src, len ) strncpy( dest, src, len )
 
#  define maug_strlen( str ) strlen( str )
 
#  define maug_is_locked( handle, ptr ) \
      (NULL == (handle) && NULL != (ptr))
 
#endif
 
#define maug_mrealloc_test( new_handle, handle, nmemb, sz ) \
   maug_cleanup_if_lt_overflow( (sz) * (nmemb), sz ); \
   new_handle = maug_mrealloc( handle, nmemb, sz ); \
   maug_cleanup_if_null_alloc( MAUG_MHANDLE, new_handle ); \
   handle = new_handle;
 
char* maug_strchr( const char* str, char c );
 
char* maug_strrchr( const char* str, char c );
 /* maug_mem */
 
#ifdef MMEM_C
 
char* maug_strchr( const char* str, char c ) {
   size_t str_sz = 0,
      i = 0;
 
   str_sz = maug_strlen( str );
 
   for( i = 0 ; str_sz > i ; i++ ) {
      if( str[i] == c ) {
         return (char*)&(str[i]);
      }
   }
 
   return NULL;
}
 
char* maug_strrchr( const char* str, char c ) {
   ssize_t str_sz = 0,
      i = 0;
 
   str_sz = maug_strlen( str );
 
   for( i = str_sz ; 0 <= i ; i-- ) {
      if( str[i] == c ) {
         return (char*)&(str[i]);
      }
   }
 
   return NULL;
}
 
#endif /* MMEM_C */
 
#endif /* !MMEM_H */