lib_str.h

UCOS-III

/*
*********************************************************************************************************
*                                                uC/LIB
*                                        CUSTOM LIBRARY MODULES
*
*                          (c) Copyright 2004-2011; Micrium, Inc.; Weston, FL
*
*               All rights reserved.  Protected by international copyright laws.
*
*               uC/LIB is provided in source form to registered licensees ONLY.  It is 
*               illegal to distribute this source code to any third party unless you receive 
*               written permission by an authorized Micrium representative.  Knowledge of 
*               the source code may NOT be used to develop a similar product.
*
*               Please help us continue to provide the Embedded community with the finest 
*               software available.  Your honesty is greatly appreciated.
*
*               You can contact us at www.micrium.com.
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*
*                                       ASCII STRING MANAGEMENT
*
* Filename      : lib_str.h
* Version       : V1.35.00
* Programmer(s) : ITJ
*                 JDH
*********************************************************************************************************
* Note(s)       : (1) NO compiler-supplied standard library functions are used in library or product software.
*
*                     (a) ALL standard library functions are implemented in the custom library modules :
*
*                         (1) \<Custom Library Directory>\lib_*.*
*
*                         (2) \<Custom Library Directory>\Ports\<cpu>\<compiler>\lib*_a.*
*
*                               where
*                                       <Custom Library Directory>      directory path for custom library software
*                                       <cpu>                           directory name for specific processor (CPU)
*                                       <compiler>                      directory name for specific compiler
*
*                     (b) Product-specific library functions are implemented in individual products.
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                               MODULE
*
* Note(s) : (1) This string library header file is protected from multiple pre-processor inclusion through 
*               use of the string library module present pre-processor macro definition.
*********************************************************************************************************
*/

#ifndef  LIB_STR_MODULE_PRESENT                                 /* See Note #1.                                         */
#define  LIB_STR_MODULE_PRESENT


/*$PAGE*/
/*
*********************************************************************************************************
*                                 ASCII STRING CONFIGURATION DEFINES
*
* Note(s) : (1) Some ASCII string configuration #define's MUST be available PRIOR to including any 
*               application configuration (see 'INCLUDE FILES  Note #1a').
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                    STRING FLOATING POINT DEFINES
*
* Note(s) : (1) (a) (1) The maximum accuracy for 32-bit floating-point numbers :
*
*
*                             Maximum Accuracy            log [Internal-Base ^ (Number-Internal-Base-Digits)]
*                       32-bit Floating-point Number  =  -----------------------------------------------------
*                                                                         log [External-Base]
*
*                                                         log [2 ^ 24]
*                                                     =  --------------
*                                                           log [10]
*
*                                                     <  7.225  Base-10 Digits
*
*                           where
*                                   Internal-Base                   Internal number base of floating-
*                                                                       point numbers (i.e.  2)
*                                   External-Base                   External number base of floating-
*                                                                       point numbers (i.e. 10)
*                                   Number-Internal-Base-Digits     Number of internal number base
*                                                                       significant digits (i.e. 24)
*
*                   (2) Also, since some 32-bit floating-point calculations are converted to 32-bit 
*                       unsigned numbers, the maximum accuracy is limited to the maximum accuracy
*                       for 32-bit unsigned numbers of 9 digits.
*
*               (b) Some CPUs' &/or compilers' floating-point implementations MAY further reduce the 
*                   maximum accuracy.
*********************************************************************************************************
*/

#define  LIB_STR_FP_MAX_NBR_DIG_SIG_MIN                    1u
#define  LIB_STR_FP_MAX_NBR_DIG_SIG_MAX                    9u   /* See Note #1a2.                                       */
#define  LIB_STR_FP_MAX_NBR_DIG_SIG_DFLT                   7u   /* See Note #1a1.                                       */


/*$PAGE*/
/*
*********************************************************************************************************
*                                            INCLUDE FILES
*
* Note(s) : (1) The custom library software files are located in the following directories :
*
*               (a) \<Your Product Application>\app_cfg.h
*
*               (b) \<Custom Library Directory>\lib_*.*
*
*                       where
*                               <Your Product Application>      directory path for Your Product's Application
*                               <Custom Library Directory>      directory path for custom library software
*
*           (2) CPU-configuration  software files are located in the following directories :
*
*               (a) \<CPU-Compiler Directory>\cpu_*.*
*               (b) \<CPU-Compiler Directory>\<cpu>\<compiler>\cpu*.*
*
*                       where
*                               <CPU-Compiler Directory>        directory path for common CPU-compiler software
*                               <cpu>                           directory name for specific processor (CPU)
*                               <compiler>                      directory name for specific compiler
*
*           (3) Compiler MUST be configured to include as additional include path directories :
*
*               (a) '\<Your Product Application>\' directory                            See Note #1a
*
*               (b) '\<Custom Library Directory>\' directory                            See Note #1b
*
*               (c) (1) '\<CPU-Compiler Directory>\'                  directory         See Note #2a
*                   (2) '\<CPU-Compiler Directory>\<cpu>\<compiler>\' directory         See Note #2b
*
*           (4) NO compiler-supplied standard library functions SHOULD be used.
*
*               #### The reference to standard library header files SHOULD be removed once all custom
*               library functions are implemented WITHOUT reference to ANY standard library function(s).
*
*               See also 'STANDARD LIBRARY MACRO'S  Note #1'.
*********************************************************************************************************
*/

#include  <cpu.h>

#include  <lib_def.h>
#include  <lib_ascii.h>

#include  <app_cfg.h>

#if 0                                                           /* See Note #4.                                         */
#include  <stdio.h>
#endif


/*
*********************************************************************************************************
*                                               EXTERNS
*********************************************************************************************************
*/

#ifdef   LIB_STR_MODULE
#define  LIB_STR_EXT
#else
#define  LIB_STR_EXT  extern
#endif


/*$PAGE*/
/*
*********************************************************************************************************
*                                        DEFAULT CONFIGURATION
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                 STRING FLOATING POINT CONFIGURATION
*
* Note(s) : (1) Configure LIB_STR_CFG_FP_EN to enable/disable floating point string function(s).
*
*           (2) Configure LIB_STR_CFG_FP_MAX_NBR_DIG_SIG to configure the maximum number of significant 
*               digits to calculate &/or display for floating point string function(s).
*
*               See also 'STRING FLOATING POINT DEFINES  Note #1'.
*********************************************************************************************************
*/

                                                                /* Configure floating point feature(s) [see Note #1] :  */
#ifndef  LIB_STR_CFG_FP_EN
#define  LIB_STR_CFG_FP_EN                      DEF_DISABLED
                                                                /*   DEF_DISABLED     Floating point functions DISABLED */
                                                                /*   DEF_ENABLED      Floating point functions ENABLED  */
#endif

                                                                /* Configure floating point feature(s)' number of ...   */