156 linhas
5.9 KiB
C
156 linhas
5.9 KiB
C
//{
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//(
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// cmGlobal.h contains the global macros, header files, and
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// typedefs availale to all other cm modules.
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//
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// All operating system dependencies should be resolved in this file via
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// testing for OS_LINUX, OS_OSX, or OS_W32.
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//)
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#ifndef cmGlobal_h
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#define cmGlobal_h
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//(
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#include "config.h" // created by 'configure'
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <math.h>
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#include <ctype.h>
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#include <errno.h>
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#include <float.h>
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#include <limits.h>
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#include <signal.h>
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#include <time.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CM_FLOAT_SMP 1 //< make cmSample_t = float in cmFloatTypes.h
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#define CM_FLOAT_REAL 0 //< make cmReal_t = double in cmFloatTypes.h
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#ifdef NDEBUG
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#define cmDEBUG_FL 0 //< Define cmDEBUG_FL as 0 when building in release mode. See \ref debug_mode.
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#else
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#define cmDEBUG_FL 1 //< Define cmDEBUG_FL as 1 when building in debug mode. See \ref debug_mode.
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#endif
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// Perform byte swapping on 16 bit values.
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#define cmSwap16(x) \
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(((((unsigned short)(x)) & 0x00ff) << 8) | ((((unsigned short)(x)) & 0xff00) >> 8))
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#ifdef OS_LINUX
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#include <byteswap.h> // gcc specific
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#include <unistd.h>
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// Perform byte swapping on 32 bit values on systems were <byteswap.h> is available.
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#define cmSwap32(x) (bswap_32(x))
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// Perform byte swapping on 64 bit values on systems were <byteswap.h> is available.
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#define cmSwap64(x) (bswap_64(x))
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#endif
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#ifdef OS_OSX
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#include <unistd.h>
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// Perform byte swapping on 32 bit values on systems were <byteswap.h> is not available.
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#define cmSwap32(x) \
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((((unsigned)((x) & 0x000000FF)) << 24) | \
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(((unsigned)((x) & 0x0000FF00)) << 8) | \
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(((unsigned)((x) & 0x00FF0000)) >> 8) | \
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(((unsigned)((x) & 0xFF000000)) >> 24))
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// Perform byte swapping on 64 bit values on systems were <byteswap.h> is not available.
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#define cmSwap64(x) \
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(((((unsigned long long)(x))<<56) & 0xFF00000000000000ULL) | \
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((((unsigned long long)(x))<<40) & 0x00FF000000000000ULL) | \
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((((unsigned long long)(x))<<24) & 0x0000FF0000000000ULL) | \
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((((unsigned long long)(x))<< 8) & 0x000000FF00000000ULL) | \
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((((unsigned long long)(x))>> 8) & 0x00000000FF000000ULL) | \
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((((unsigned long long)(x))>>24) & 0x0000000000FF0000ULL) | \
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((((unsigned long long)(x))>>40) & 0x000000000000FF00ULL) | \
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((((unsigned long long)(x))>>56) & 0x00000000000000FFULL))
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#endif
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#define cmAllFlags(f,m) (((f) & (m)) == (m)) //< Test if all of a group 'm' of binary flags in 'f' are set.
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#define cmIsFlag(f,m) (((f) & (m)) ? true : false) //< Test if any one of a the bits in 'm' is also set in 'f'.
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#define cmIsNotFlag(f,m) (cmIsFlag(f,m)==false) //< Test if none of the bits in 'm' are set in 'f'.
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#define cmSetFlag(f,m) ((f) | (m)) //< Return 'f' with the bits in 'm' set.
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#define cmClrFlag(f,m) ((f) & (~(m))) //< Return 'f' with the bits in 'm' cleared.
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#define cmTogFlag(f,m) ((f)^(m)) //< Return 'f' with the bits in 'm' toggled.
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#define cmEnaFlag(f,m,b) (b) ? cmSetFlag(f,m) : cmClrFlag(f,m) //< \brief Set or clear bits in 'f' based on bits in 'm' and the state of 'b'.
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//<
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//< If 'b' == 0 then return 'f' with the bits in 'm' cleared.
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//< otherwise return 'f' with the bits in 'm' set.
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#define cmMin(v0,v1) ((v0)<(v1) ? (v0) : (v1)) //< Return the minimum arg.
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#define cmMax(v0,v1) ((v0)>(v1) ? (v0) : (v1)) //< Return the maximum arg.
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#define cmStringNullGuard(p) ((p)==NULL?"<null>":(p)) //< If 'p'==NULL return the static string "<null>" otherwise return 'p'.
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#define cmStringLen(s) ((s)==NULL? 0 : strlen(s))
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// Default return code indicating successful function completion.
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#define cmOkRC (0)
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// Default directory separator character for unix based systems.
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#define cmPathSeparatorChar ("/")
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#define cmInvalidIdx (0xffffffff) //< cm wide value indicating a invalid or NULL index.
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#define cmInvalidId (cmInvalidIdx) //< cm wide value indicating an invalid or NULL numeric id.
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#define cmInvalidCnt (cmInvalidIdx) //< cm wide value indicating a invalid or NULL count of items.
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#define cmSTATIC_NULL_HANDLE {NULL} //< Default NULL value for cmHandle_t
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// Generic data type for implementing opaque object handles.
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/*
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typedef struct cmHandle_str
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{
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void* h;
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} cmHandle_t;
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*/
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#define cmHandle_t struct { void* h; }
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#define cmHandlesAreEqual( a, b ) ((a).h == (b).h) //< Test if two cmHandle_t values are equivalent.
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#define cmHandlesAreNotEqual( a, b ) (!cmHandlesAreEqual(a,b)) //< Test if two cmHandle_t value are not equivalent.
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// Data type commonly used as a function return value. Functions returning cmRC_t values
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// return cmOkRC (0) to indicate successful completion or some other value to indicate
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// some kind of exceptional conidtion. In general the condition indicates an unexpected condition
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// such as resource exhaution, or a missing file.
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typedef unsigned cmRC_t;
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// A data type which indicates a system dependent error. This is generally an abstraction for an 'errno'
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// like code.
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typedef int cmSysErrCode_t; // same as errno
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// cmChar_t is a data type used to indicate that a char is being used to hold human readable
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// text. Eventually this type will be used to locate and handle unicode based strings.
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typedef char cmChar_t;
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typedef unsigned int cmUInt32_t; //< This typedef is used to indicate that the type must be an unsigned 32 bit integer.
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typedef unsigned short cmUInt16_t; //< This typedef is used to indicate that hte type must be an unsigned 16 bit integer.
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#ifdef __cplusplus
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}
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#endif
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//)
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//}
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#endif
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