tests/tcg/multiarch/float_helpers.h

   1 /*
   2  * Common Float Helpers
   3  *
   4  * Copyright (c) 2019, 2024 Linaro
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include <inttypes.h>
  10
  11 /* Some hosts do not have support for all of these; not required by ISO C. */
  12 #ifndef FE_OVERFLOW
  13 #define FE_OVERFLOW 0
  14 #endif
  15 #ifndef FE_UNDERFLOW
  16 #define FE_UNDERFLOW 0
  17 #endif
  18 #ifndef FE_DIVBYZERO
  19 #define FE_DIVBYZERO 0
  20 #endif
  21 #ifndef FE_INEXACT
  22 #define FE_INEXACT 0
  23 #endif
  24 #ifndef FE_INVALID
  25 #define FE_INVALID 0
  26 #endif
  27
  28 /* Number of constants in each table */
  29 int get_num_f16(void);
  30 int get_num_f32(void);
  31 int get_num_f64(void);
  32
  33 /* Accessor helpers, overflows will automatically wrap */
  34 uint16_t get_f16(int i); /* use _Float16 when we can */
  35 float    get_f32(int i);
  36 double   get_f64(int i);
  37
  38 /* Return format strings, free after use */
  39 char * fmt_f16(uint16_t);
  40 char * fmt_f32(float);
  41 char * fmt_f64(double);
  42 /* exception flags */
  43 char * fmt_flags(void);