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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | mjames | 1 | #ifndef _UTIL_H_ |
| 2 | #define _UTIL_H_ |
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| 3 | |||
| 4 | /*--------------------------------------------------------------------------------*/ |
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| 5 | /* Macros and Defines */ |
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| 6 | /*--------------------------------------------------------------------------------*/ |
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| 7 | |||
| 8 | /** |
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| 9 | * Convert a symbol to a string and add a 'NewLine'. |
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| 10 | */ |
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| 11 | #define STR_NL(x) STR1_NL(x) |
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| 12 | #define STR1_NL(x) (STR2_NL(x)"\n") |
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| 13 | #define STR2_NL(x) #x |
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| 14 | |||
| 15 | /** |
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| 16 | * Convert a symbol to a string. |
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| 17 | */ |
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| 18 | #define STR(x) STR1(x) |
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| 19 | #define STR1(x) STR2(x) |
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| 20 | #define STR2(x) #x |
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| 21 | |||
| 22 | /** |
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| 23 | * Concatenate two symbols. |
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| 24 | */ |
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| 25 | #define CONCAT(a, b) CONCAT1(a, b) |
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| 26 | #define CONCAT1(a, b) CONCAT2(a, b) |
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| 27 | #define CONCAT2(a, b) a##b |
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| 28 | |||
| 29 | |||
| 30 | /** |
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| 31 | * Place curly braces around a varaible number of macro arguments. |
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| 32 | */ |
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| 33 | #define CURLY(...) {__VA_ARGS__} |
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| 34 | |||
| 35 | /** |
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| 36 | * Place parenthesis around a variable number of macro arguments. |
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| 37 | */ |
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| 38 | #define PAREN(...) (__VA_ARGS__) |
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| 39 | |||
| 40 | /* Standard min/max macros. */ |
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| 41 | #define MIN(x,y) (((x) < (y)) ? (x) : (y) ) |
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| 42 | #define MAX(x,y) (((x) > (y)) ? (x) : (y) ) |
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| 43 | |||
| 44 | /** |
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| 45 | * Bound value using low and high limits. |
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| 46 | * |
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| 47 | * Evaluate to a number in the range, endpoint inclusive. |
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| 48 | */ |
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| 49 | #define BOUND(low, high, value) \ |
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| 50 | MAX(MIN(high, value), low) |
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| 51 | |||
| 52 | #endif /* _UTIL_H_ */ |