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Diffstat (limited to 'include/flatcc/flatcc_accessors.h')
| -rw-r--r-- | include/flatcc/flatcc_accessors.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/include/flatcc/flatcc_accessors.h b/include/flatcc/flatcc_accessors.h new file mode 100644 index 0000000..084ecb1 --- /dev/null +++ b/include/flatcc/flatcc_accessors.h @@ -0,0 +1,101 @@ +#ifndef FLATCC_ACCESSORS +#define FLATCC_ACCESSORS + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef UINT8_MAX +#include <stdint.h> +#endif + +#define __flatcc_basic_scalar_accessors_impl(N, T, W, E) \ +static inline size_t N ## __size(void) \ +{ return sizeof(T); } \ +static inline T *N ## __ptr_add(T *p, size_t i) \ +{ return p + i; } \ +static inline const T *N ## __const_ptr_add(const T *p, size_t i) \ +{ return p + i; } \ +static inline T N ## _read_from_pe(const void *p) \ +{ return N ## _cast_from_pe(*(T *)p); } \ +static inline T N ## _read_to_pe(const void *p) \ +{ return N ## _cast_to_pe(*(T *)p); } \ +static inline T N ## _read(const void *p) \ +{ return *(T *)p; } \ +static inline void N ## _write_from_pe(void *p, T v) \ +{ *(T *)p = N ## _cast_from_pe(v); } \ +static inline void N ## _write_to_pe(void *p, T v) \ +{ *(T *)p = N ## _cast_to_pe(v); } \ +static inline void N ## _write(void *p, T v) \ +{ *(T *)p = v; } \ +static inline T N ## _read_from_le(const void *p) \ +{ return N ## _cast_from_le(*(T *)p); } \ +typedef struct { int is_null; T value; } N ## _option_t; + +#define __flatcc_define_integer_accessors_impl(N, T, W, E) \ +static inline T N ## _cast_from_pe(T v) \ +{ return (T) E ## W ## toh((uint ## W ## _t)v); } \ +static inline T N ## _cast_to_pe(T v) \ +{ return (T) hto ## E ## W((uint ## W ## _t)v); } \ +static inline T N ## _cast_from_le(T v) \ +{ return (T) le ## W ## toh((uint ## W ## _t)v); } \ +static inline T N ## _cast_to_le(T v) \ +{ return (T) htole ## W((uint ## W ## _t)v); } \ +static inline T N ## _cast_from_be(T v) \ +{ return (T) be ## W ## toh((uint ## W ## _t)v); } \ +static inline T N ## _cast_to_be(T v) \ +{ return (T) htobe ## W((uint ## W ## _t)v); } \ +__flatcc_basic_scalar_accessors_impl(N, T, W, E) + +#define __flatcc_define_real_accessors_impl(N, T, W, E) \ +union __ ## N ## _cast { T v; uint ## W ## _t u; }; \ +static inline T N ## _cast_from_pe(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = E ## W ## toh(x.u); return x.v; } \ +static inline T N ## _cast_to_pe(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = hto ## E ## W(x.u); return x.v; } \ +static inline T N ## _cast_from_le(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = le ## W ## toh(x.u); return x.v; } \ +static inline T N ## _cast_to_le(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = htole ## W(x.u); return x.v; } \ +static inline T N ## _cast_from_be(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = be ## W ## toh(x.u); return x.v; } \ +static inline T N ## _cast_to_be(T v) \ +{ union __ ## N ## _cast x; \ + x.v = v; x.u = htobe ## W(x.u); return x.v; } \ +__flatcc_basic_scalar_accessors_impl(N, T, W, E) + +#define __flatcc_define_integer_accessors(N, T, W, E) \ +__flatcc_define_integer_accessors_impl(N, T, W, E) + +#define __flatcc_define_real_accessors(N, T, W, E) \ +__flatcc_define_real_accessors_impl(N, T, W, E) + +#define __flatcc_define_basic_integer_accessors(NS, TN, T, W, E) \ +__flatcc_define_integer_accessors(NS ## TN, T, W, E) + +#define __flatcc_define_basic_real_accessors(NS, TN, T, W, E) \ +__flatcc_define_real_accessors(NS ## TN, T, W, E) + +#define __flatcc_define_basic_scalar_accessors(NS, E) \ +__flatcc_define_basic_integer_accessors(NS, char, char, 8, E) \ +__flatcc_define_basic_integer_accessors(NS, uint8, uint8_t, 8, E) \ +__flatcc_define_basic_integer_accessors(NS, uint16, uint16_t, 16, E) \ +__flatcc_define_basic_integer_accessors(NS, uint32, uint32_t, 32, E) \ +__flatcc_define_basic_integer_accessors(NS, uint64, uint64_t, 64, E) \ +__flatcc_define_basic_integer_accessors(NS, int8, int8_t, 8, E) \ +__flatcc_define_basic_integer_accessors(NS, int16, int16_t, 16, E) \ +__flatcc_define_basic_integer_accessors(NS, int32, int32_t, 32, E) \ +__flatcc_define_basic_integer_accessors(NS, int64, int64_t, 64, E) \ +__flatcc_define_basic_real_accessors(NS, float, float, 32, E) \ +__flatcc_define_basic_real_accessors(NS, double, double, 64, E) + +#ifdef __cplusplus +} +#endif + +#endif /* FLATCC_ACCESSORS */ |