newlib-cygwin/newlib/libc/machine/powerpc/atoufix16.c

81 lines
1.9 KiB
C

/*
FUNCTION
<<atoufix16>>, <<atoufix32>>, <<atoufix64>>---string to unsigned fixed-point
INDEX
atoufix16
INDEX
atoufix32
INDEX
atoufix64
INDEX
_atoufix16_r
INDEX
_atoufix32_r
INDEX
_atoufix64_r
SYNOPSIS
#include <stdlib.h>
__uint16_t atoufix16(const char *<[s]>);
__uint32_t atoufix32(const char *<[s]>);
__uint64_t atoufix32(const char *<[s]>);
__uint16_t _atoufix16_r(struct __reent *, const char *<[s]>);
__uint32_t _atoufix32_r(struct __reent *, const char *<[s]>);
__uint64_t _atoufix32_r(struct __reent *, const char *<[s]>);
DESCRIPTION
<<atoufix16>> converts the initial portion of a string to a
16-bit fraction unsigned fixed point value.
<<atoufix32>> converts the initial portion of a string to a
32-bit fraction unsigned fixed point value.
<<atoufix64>> converts the initial portion of a string to a
64-bit fraction unsigned fixed point value.
<<atoufix16(s)>> is implemented as <<strtoufix16(s, NULL).>>
<<atoufix32(s)>> is implemented as <<strtoufix32(s, NULL).>>
<<atoufix64(s)>> is implemented as <<strtoufix64(s, NULL).>>
The alternate functions <<_atoufix16_r>>, <<_atoufix32_r>>,
and <<_atoufix64_r>> are reentrant versions.
The extra argument <[reent]> is a pointer to a reentrancy structure.
RETURNS
The functions return the converted value, if any. If no conversion was
made, <<0>> is returned. If saturation occurs, <<ERANGE>> is stored
in errno.
PORTABILITY
<<atoufix16>>, <<atoufix32>>, and <<atoufix64>> are non-standard.
No supporting OS subroutines are directly required. The
OS subroutines required by <<strtod>> are used.
*/
/*
* Jeff Johnston - 02/13/2002
*/
#ifdef __SPE__
#include <stdlib.h>
#include <_ansi.h>
__uint16_t
_atoufix16_r (struct _reent *reent,
const char *s)
{
return _strtoufix16_r (reent, s, NULL);
}
#ifndef _REENT_ONLY
__uint16_t
atoufix16 (const char *s)
{
return strtoufix16 (s, NULL);
}
#endif /* !_REENT_ONLY */
#endif /* __SPE__ */