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Add the bitmask_exact.

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Enrico Fraccaroli (Galfurian)
2024-02-29 16:43:33 -05:00
parent 79a9897a61
commit d213be2bcf
1 changed files with 8 additions and 7 deletions
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libc/inc/sys/bitops.h
+8 -7
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@@ -15,13 +15,14 @@
#define bit_flip_assign(V, B) ((V) ^= (1U << (B))) ///< Flips the given bit, permanently.
#define bit_toggle_assign(V, B, C) ((C) ? bit_set_assign(V, B) : bit_clear_assign(V, B)) ///< Sets the given bit based on control bit C.
#define bitmask_set(V, M) ((V) | (M)) ///< Sets the bits identified by the mask.
#define bitmask_clear(V, M) ((V) & ~(M)) ///< Clears the bits identified by the mask.
#define bitmask_flip(V, M) ((V) ^ (M)) ///< Flips the bits identified by the mask.
#define bitmask_check(V, M) ((V) & (M)) ///< Checks if the bits identified by the mask are all 1.
#define bitmask_set_assign(V, M) ((V) |= (M)) ///< Sets the bits identified by the mask, permanently.
#define bitmask_clear_assign(V, M) ((V) &= ~(M)) ///< Clears the bits identified by the mask, permanently.
#define bitmask_flip_assign(V, M) ((V) ^= (M)) ///< Flips the bits identified by the mask, permanently.
#define bitmask_set(V, M) ((V) | (M)) ///< Sets the bits identified by the mask.
#define bitmask_clear(V, M) ((V) & ~(M)) ///< Clears the bits identified by the mask.
#define bitmask_flip(V, M) ((V) ^ (M)) ///< Flips the bits identified by the mask.
#define bitmask_check(V, M) ((V) & (M)) ///< Checks if the bits identified by the mask are all 1.
#define bitmask_exact(V, M) (((V) & (M)) == (M)) ///< Checks if all the bits identified by the mask are all 1.
#define bitmask_set_assign(V, M) ((V) |= (M)) ///< Sets the bits identified by the mask, permanently.
#define bitmask_clear_assign(V, M) ((V) &= ~(M)) ///< Clears the bits identified by the mask, permanently.
#define bitmask_flip_assign(V, M) ((V) ^= (M)) ///< Flips the bits identified by the mask, permanently.
/// @brief Finds the first bit at zero, starting from the less significative bit.
/// @param value the value we need to analyze.