81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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FUNCTION
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<<atosfix16>>, <<atosfix32>>, <<atosfix64>>---string to signed fixed-point
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INDEX
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atosfix16
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INDEX
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atosfix32
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INDEX
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atosfix64
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INDEX
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_atosfix16_r
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INDEX
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_atosfix32_r
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INDEX
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_atosfix64_r
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SYNOPSIS
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#include <stdlib.h>
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__int16_t atosfix16(const char *<[s]>);
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__int32_t atosfix32(const char *<[s]>);
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__int64_t atosfix32(const char *<[s]>);
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__int16_t _atosfix16_r(struct __reent *, const char *<[s]>);
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__int32_t _atosfix32_r(struct __reent *, const char *<[s]>);
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__int64_t _atosfix32_r(struct __reent *, const char *<[s]>);
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DESCRIPTION
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<<atosfix16>> converts the initial portion of a string to a sign
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+ 15-bit fraction fixed point value.
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<<atosfix32>> converts the initial portion of a string to a sign
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+ 31-bit fraction fixed point value.
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<<atosfix64>> converts the initial portion of a string to a sign
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+ 63-bit fraction fixed point value.
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<<atosfix16(s)>> is implemented as <<strtosfix16(s, NULL).>>
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<<atosfix32(s)>> is implemented as <<strtosfix32(s, NULL).>>
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<<atosfix64(s)>> is implemented as <<strtosfix64(s, NULL).>>
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The alternate functions <<_atosfix16_r>>, <<_atosfix32_r>>,
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and <<_atosfix64_r>> are reentrant versions.
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The extra argument <[reent]> is a pointer to a reentrancy structure.
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RETURNS
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The functions return the converted value, if any. If no conversion was
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made, <<0>> is returned. If saturation occurs, <<ERANGE>> is stored
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in errno.
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PORTABILITY
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<<atosfix16>>, <<atosfix32>>, and <<atosfix64>> are non-standard.
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No supporting OS subroutines are directly required. The
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OS subroutines required by <<strtod>> are used.
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*/
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/*
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* Jeff Johnston - 02/13/2002
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*/
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#ifdef __SPE__
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#include <stdlib.h>
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#include <_ansi.h>
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__int16_t
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_atosfix16_r (struct _reent *reent,
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const char *s)
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{
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return _strtosfix16_r (reent, s, NULL);
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}
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#ifndef _REENT_ONLY
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__int16_t
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atosfix16 (const char *s)
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{
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return strtosfix16 (s, NULL);
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}
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#endif /* !_REENT_ONLY */
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#endif /* __SPE__ */
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