1 /*

     2  * (c) 2000 Jiri Baum

     3  *          Mario de Sousa

     4  *

     5  * Offered to the public under the terms of the GNU General Public License

     6  * as published by the Free Software Foundation; either version 2 of the

     7  * License, or (at your option) any later version.

     8  *

     9  * This program is distributed in the hope that it will be useful, but

    10  * WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General

    12  * Public License for more details.

    13  *

    14  * This code is made available on the understanding that it will not be

    15  * used in safety-critical situations without a full and competent review.

    16  */

    17 

    18 

    19 #ifndef __PLC_TYPES_H

    20 #define __PLC_TYPES_H

    21 

    22 #include <limits.h>

    23 #include <float.h>   /* some limits related to floats are located here (?) */

    24 

    25 

    26 /*

    27  * This will need to be conditional on the arquitecture or something.

    28  * Anyone know where we can snarf the relevant magic easily?

    29  */

    30 typedef double                 f64; /* 64-bit floating point   */

    31 typedef float                  f32; /* 32-bit floating point   */

    32 

    33 typedef unsigned long long int u64; /* 64-bit unsigned integer */

    34 typedef long long int          i64; /* 64-bit signed integer   */

    35 typedef unsigned int           u32; /* 32-bit unsigned integer */

    36 typedef int                    i32; /* 32-bit signed integer   */

    37 typedef unsigned short int     u16; /* 16-bit unsigned integer */

    38 typedef short int              i16; /* 16-bit signed integer   */

    39 typedef unsigned char          u8;  /*  8-bit unsigned integer */

    40 typedef signed char            i8;  /*  8-bit signed integer   */

    41 

    42 /* some platforms seem to be missing <float.h> with the definition of FLT_MAX */

    43 #ifndef FLT_MAX

    44   /* this is the minimum value guaranteed by ANSI C++           */

    45   /* does anybody know the minimum value guaranteed for ANSI C ? */

    46 #define FLT_MAX 1E+37

    47 #endif

    48 #ifndef FLT_MIN

    49   /* this is the minimum value guaranteed by ANSI C++           */

    50   /* does anybody know the minimum value guaranteed for ANSI C ? */

    51 #define FLT_MIN 1E-37

    52 #endif

    53 

    54 #define f32_MAX FLT_MAX

    55 #define f32_MIN FLT_MIN

    56 

    57 #define u32_MAX UINT_MAX

    58 #define u32_MIN 0

    59 #define i32_MAX INT_MAX

    60 #define i32_MIN INT_MIN

    61 

    62 #define u16_MAX USHRT_MAX

    63 #define u16_MIN 0

    64 #define i16_MAX SHRT_MAX

    65 #define i16_MIN SHRT_MIN

    66 

    67 #define u8_MAX UCHAR_MAX

    68 #define u8_MIN 0

    69 #define i8_MAX SCHAR_MAX

    70 #define i8_MIN SCHAR_MIN

    71 

    72 #endif /* __PLC_TYPES_H */

    73