diff options
Diffstat (limited to 'src/util_ct.h')
| -rw-r--r-- | src/util_ct.h | 63 |
1 files changed, 57 insertions, 6 deletions
diff --git a/src/util_ct.h b/src/util_ct.h index cd21a12..b408808 100644 --- a/src/util_ct.h +++ b/src/util_ct.h @@ -1,14 +1,20 @@ #pragma once #include <assert.h> #include <stdint.h> +#include <stdlib.h> +#ifdef PRNE_DEBUG +#include <stdio.h> +#include <errno.h> +#endif -#define PRNE_LIMIT_ENUM(t,x,l) _Static_assert(x <= l,"enum overflow: "#t) +#define PRNE_LIMIT_ENUM(t,x,l) _Static_assert((x) <= (l),"enum overflow: "#t) -#define prne_op_min(a, b) (a < b ? a : b) -#define prne_op_max(a, b) (a > b ? a : b) -#define prne_op_spaceship(a, b) (a == b ? 0 : a < b ? -1 : 1) +#define prne_op_min(a, b) ((a) < (b) ? (a) : (b)) +#define prne_op_max(a, b) ((a) > (b) ? (a) : (b)) +#define prne_op_spaceship(a, b) ((a) == (b) ? 0 : (a) < (b) ? -1 : 1) -#define prne_malign_to(x, align) ((x % align == 0) ? x : (x / align + 1) * align) +#define prne_salign_next(x, align) (((x) % align == 0) ? (x) : ((x) / align + 1) * align) +#define prne_salign_at(x, align) (((x) % align == 0) ? (x) : ((x) / align) * align) #if !defined(memzero) #define memzero(addr, len) memset(addr, 0, len) @@ -17,7 +23,52 @@ #ifdef PRNE_DEBUG #define prne_dbgpf(...) fprintf(stderr, __VA_ARGS__) #define prne_dbgperr(str) perror(str) +#define prne_assert(expr) assert(expr) +#define prne_massert(expr, ...)\ + if (!(expr)) {\ + fprintf(stderr, "*** ");\ + fprintf(stderr, __VA_ARGS__);\ + fprintf(stderr, "\n");\ + abort();\ + } +#define prne_dbgast(expr) prne_assert(expr) +#define prne_dbgmast(expr, ...) prne_massert(expr, __VA_ARGS__) #else -#define prne_dbgpf(fmt, ...) +#define prne_dbgpf(...) #define prne_dbgperr(str) +#define prne_assert(expr)\ + if (!(expr)) {\ + abort();\ + } +#define prne_massert(expr, ...) prne_assert(expr) +#define prne_dbgast(expr) +#define prne_dbgmast(expr, ...) +#endif + +/* Machine Characteristics +*/ +#define PRNE_ENDIAN_LITTLE 1 +#define PRNE_ENDIAN_BIG 2 + +#ifdef __GNUC__ + #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + #define PRNE_HOST_ENDIAN PRNE_ENDIAN_BIG + #elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + #define PRNE_HOST_ENDIAN PRNE_ENDIAN_LITTLE + #else + #error "FIXME!" + #endif +#else + #error "FIXME!" +#endif + +#define prne_einv16(x) (((0xFF00 & x) >> 8) | ((0x00FF & x) << 8)) + +#if PRNE_HOST_ENDIAN == PRNE_ENDIAN_BIG +#define prne_htobe16(x) (x) +#define prne_be16toh(x) (x) +#elif PRNE_HOST_ENDIAN == PRNE_ENDIAN_LITTLE +#define prne_htobe16(x) prne_einv16(x) +#define prne_be16toh(x) prne_einv16(x) +#else #endif |