homl/basic_types.h

// names of everything are prefixed to avoid library collisions
#ifndef basic_types_h
#define basic_types_h

// all dependencies
#include <stdio.h>

// basic integer types
// minimum and maximum
typedef unsigned char owl_byte;
typedef char          owl_char;
typedef unsigned long long int owl_umax;
typedef long long          int owl_smax;

// useful in some cases 
#define NOT_NULL ((void *) NULL + 1)

// this library assumes 1 byte = 8 bits
#define OWL_BYTE_BITS 8

// float and boolean
typedef double owl_fmax;
typedef owl_char owl_bool;
#define owl_false 0
#define owl_true 1
#define owl_bool_err 2

// owl_type_basic_types_h enum
// this enum will be extended each time a new type (without
// including these enums) is introduced into the library
typedef enum
{
  OWL_TYPE_NONE,
  OWL_TYPE_BYTE,
  OWL_TYPE_CHAR,
  OWL_TYPE_UMAX,
  OWL_TYPE_SMAX,
  OWL_TYPE_FMAX,
  OWL_TYPE_BOOL,
} owl_type_basic_types_h;
// mask enum as an integer type for
// variable type function arguments
typedef owl_type_basic_types_h owl_type;

// creating and destroying is not
// necessary with these simple data types

// internal use function
owl_bool owl_check_ptr(void * ptr, owl_umax size);

// printing functions
owl_umax owl_print_byte_bin(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_byte_dec(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_byte_hex(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_char_dec(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_char_char(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_umax_dec(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_umax_hex(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_smax_dec(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_fmax(owl_byte * mem, owl_umax mem_size);
owl_umax owl_print_bool(owl_byte * mem, owl_umax mem_size);

// compare functions and some defs
#define owl_comp_less -1
#define owl_comp_equal 0
#define owl_comp_greater 1
#define owl_comp_err 2
owl_char owl_comp_byte(owl_byte * byte1, owl_byte * byte2);
owl_char owl_comp_char(owl_byte * char1, owl_byte * char2);
owl_char owl_comp_umax(owl_byte * umax1, owl_byte * umax2);
owl_char owl_comp_smax(owl_byte * smax1, owl_byte * smax2);
owl_char owl_comp_fmax(owl_byte * fmax1, owl_byte * fmax2);
owl_char owl_comp_bool(owl_byte * bool1, owl_byte * bool2);

#include "basic_types.c"

#endif // basic_types_h