float.h
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#ifndef LIBA_AEABI_FLOAT_H
#define LIBA_AEABI_FLOAT_H
#include <assert.h>
#include "../external/softfloat/port/softfloat.h"
/* To avoid any issue due to procedure call conventions, we convert softfloat
* double 'aeabi_double_t' (respectively 'aeabi_float_t') to float64_t (to
* respectively float32_t) before or/and after calling softfloat functions. */
typedef unsigned aeabi_float_t;
typedef unsigned long long aeabi_double_t;
static inline float32_t f32(aeabi_float_t f) {
union {
aeabi_float_t in;
float32_t out;
} res = {.in = f};
assert(sizeof(aeabi_float_t) == sizeof(float32_t));
assert(sizeof(res) == sizeof(float32_t));
return res.out;
}
static inline aeabi_float_t f(float32_t f) {
union {
float32_t in;
aeabi_float_t out;
} res = {.in = f};
assert(sizeof(aeabi_float_t) == sizeof(float32_t));
assert(sizeof(res) == sizeof(aeabi_float_t));
return res.out;
}
static inline float64_t f64(aeabi_double_t d) {
union {
aeabi_double_t in;
float64_t out;
} res = {.in = d};
assert(sizeof(aeabi_double_t) == sizeof(float64_t));
assert(sizeof(res) == sizeof(float64_t));
return res.out;
}
static inline aeabi_double_t d(float64_t d) {
union {
float64_t in;
aeabi_double_t out;
} res = {.in = d};
assert(sizeof(aeabi_double_t) == sizeof(float64_t));
assert(sizeof(res) == sizeof(aeabi_double_t));
return res.out;
}
#endif