44 lines
897 B
C
44 lines
897 B
C
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/*
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* Common Float Helpers
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*
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* Copyright (c) 2019 Linaro
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include <inttypes.h>
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/* Some hosts do not have support for all of these; not required by ISO C. */
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#ifndef FE_OVERFLOW
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#define FE_OVERFLOW 0
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#endif
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#ifndef FE_UNDERFLOW
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#define FE_UNDERFLOW 0
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#endif
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#ifndef FE_DIVBYZERO
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#define FE_DIVBYZERO 0
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#endif
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#ifndef FE_INEXACT
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#define FE_INEXACT 0
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#endif
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#ifndef FE_INVALID
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#define FE_INVALID 0
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#endif
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/* Number of constants in each table */
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int get_num_f16(void);
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int get_num_f32(void);
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int get_num_f64(void);
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/* Accessor helpers, overflows will automatically wrap */
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uint16_t get_f16(int i); /* use _Float16 when we can */
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float get_f32(int i);
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double get_f64(int i);
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/* Return format strings, free after use */
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char * fmt_f16(uint16_t);
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char * fmt_f32(float);
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char * fmt_f64(double);
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/* exception flags */
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char * fmt_flags(void);
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