103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
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/*
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FUNCTION
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<<atoufix16>>, <<atoufix32>>, <<atoufix64>>---string to unsigned fixed-point
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INDEX
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atoufix16
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INDEX
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atoufix32
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INDEX
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atoufix64
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INDEX
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_atoufix16_r
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INDEX
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_atoufix32_r
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INDEX
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_atoufix64_r
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ANSI_SYNOPSIS
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#include <stdlib.h>
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__uint16_t atoufix16(const char *<[s]>);
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__uint32_t atoufix32(const char *<[s]>);
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__uint64_t atoufix32(const char *<[s]>);
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__uint16_t _atoufix16_r(struct __reent *, const char *<[s]>);
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__uint32_t _atoufix32_r(struct __reent *, const char *<[s]>);
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__uint64_t _atoufix32_r(struct __reent *, const char *<[s]>);
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TRAD_SYNOPSIS
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#include <stdlib.h>
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__uint16_t atoufix16(<[s]>)
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const char *<[s]>;
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__uint32_t atoufix32(<[s]>)
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const char *<[s]>;
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__uint64_t atoufix64(<[s]>)
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const char *<[s]>;
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__uint16_t _atoufix16_r(<reent>, <[s]>)
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struct _reent *<[reent]>;
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const char *<[s]>;
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__uint32_t _atoufix32_r(<reent>, <[s]>)
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struct _reent *<[reent]>;
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const char *<[s]>;
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__uint64_t _atoufix64_r(<reent>, <[s]>)
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struct _reent *<[reent]>;
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const char *<[s]>;
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DESCRIPTION
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<<atoufix16>> converts the initial portion of a string to a
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16-bit fraction unsigned fixed point value.
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<<atoufix32>> converts the initial portion of a string to a
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32-bit fraction unsigned fixed point value.
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<<atoufix64>> converts the initial portion of a string to a
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64-bit fraction unsigned fixed point value.
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<<atoufix16(s)>> is implemented as <<strtoufix16(s, NULL).>>
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<<atoufix32(s)>> is implemented as <<strtoufix32(s, NULL).>>
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<<atoufix64(s)>> is implemented as <<strtoufix64(s, NULL).>>
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The alternate functions <<_atoufix16_r>>, <<_atoufix32_r>>,
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and <<_atoufix64_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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<<atoufix16>>, <<atoufix32>>, and <<atoufix64>> 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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#include <stdlib.h>
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#include <_ansi.h>
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__uint16_t
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_DEFUN (_atoufix16_r, (reent, s),
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struct _reent *reent _AND
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_CONST char *s)
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{
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return _strtoufix16_r (reent, s, NULL);
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}
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#ifndef _REENT_ONLY
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__uint16_t
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_DEFUN (atoufix16, (s),
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_CONST char *s)
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{
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return strtoufix16 (s, NULL);
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}
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#endif /* !_REENT_ONLY */
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