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Validates a value as less than or equal to a specified maximum value.

Files

lib_def.h

Prototype

          DEF_CHK_VAL_MAX(val, val_max);

Arguments

val

Value to validate.

...

where N is the number of data word bits supported by the compiler and/or target environment. Note that the most negative value, -2^(N-1), is not included in the supported range since many compilers do not always correctly handle this value.

Example Usage

          #define  CFG_VAL           -1
           
          #if     (DEF_CHK_VAL_MAX(CFG_VAL, 1000u) != DEF_OK)  /* Signed CFG_VAL NOT promoted to unsigned. */
          #error  "CFG_VAL must be <= 100"
          #endif