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FreeTDM: Add convenience macros ftdm_min(), ftdm_max() and ftdm_clamp(). 

ftdm_min(x,y) - Returns the smaller of the two values x and y.

ftdm_max(x,y) - Returns the larger of the two values x and y.

ftdm_clamp(val, min, max) - Returns value that is in the range [vmin,vmax].

Signed-off-by: Stefan Knoblich <stkn@openisdn.net>
This commit is contained in:
Stefan Knoblich 2012-07-25 13:54:32 +02:00
parent 7d0dcb6175
commit e71bacb2f5
1 changed files with 10 additions and 0 deletions
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10
libs/freetdm/src/include/ftdm_os.h
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@ -78,6 +78,16 @@ typedef uint64_t ftdm_time_t;
/*! \brief array len helper */
#define ftdm_array_len(array) sizeof(array)/sizeof(array[0])
/*! \brief Get smaller value */
#define ftdm_min(x,y) ((x) < (y) ? (x) : (y))
/*! \brief Get larger value */
#define ftdm_max(x,y) ((x) > (y) ? (x) : (y))
/*! \brief Get value that is in range [vmin,vmax] */
#define ftdm_clamp(val,vmin,vmax) ftdm_max(vmin,ftdm_min(val,vmax))
/*! \brief The memory handler.
Do not use directly this variable, use the memory macros and ftdm_global_set_memory_handler to override */
FT_DECLARE_DATA extern ftdm_memory_handler_t g_ftdm_mem_handler;