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cmd-line-utils/libedit/readline/readline.h

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- Header <sys/ttydefaults.h> missing or not usable on QNX and OpenServer 6

include/my_global.h
 - Moved down definition of function rint(), as for some platforms (in
   this case Netware) 'longlong' is not defined until later in
   "my_global.h"
This commit is contained in:
unknown 2009-03-19 16:40:54 +01:00 • committed by MySQL Build Team
commit 150b0850b3
2 changed files with 36 additions and 35 deletions
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2
cmd-line-utils/libedit/readline/readline.h
View file

@ -66,7 +66,7 @@ typedef KEYMAP_ENTRY *Keymap;
#ifndef CTRL
#include <sys/ioctl.h>
#if !defined(__sun) && !defined(__hpux) && !defined(_AIX)
#if !defined(__sun) && !defined(__hpux) && !defined(_AIX) && !defined(__QNXNTO__) && !defined(__USLC__)
#include <sys/ttydefaults.h>
#endif
#ifndef CTRL

69
include/my_global.h
View file

@ -486,40 +486,6 @@ typedef unsigned short ushort;
#define test_all_bits(a,b) (((a) & (b)) == (b))
#define set_bits(type, bit_count) (sizeof(type)*8 <= (bit_count) ? ~(type) 0 : ((((type) 1) << (bit_count)) - (type) 1))
#define array_elements(A) ((uint) (sizeof(A)/sizeof(A[0])))
#ifndef HAVE_RINT
/**
All integers up to this number can be represented exactly as double precision
values (DBL_MANT_DIG == 53 for IEEE 754 hardware).
*/
#define MAX_EXACT_INTEGER ((1LL << DBL_MANT_DIG) - 1)
/**
rint(3) implementation for platforms that do not have it.
Always rounds to the nearest integer with ties being rounded to the nearest
even integer to mimic glibc's rint() behavior in the "round-to-nearest"
FPU mode. Hardware-specific optimizations are possible (frndint on x86).
Unlike this implementation, hardware will also honor the FPU rounding mode.
*/
static inline double rint(double x)
{
double f, i;
f = modf(x, &i);
/*
All doubles with absolute values > MAX_EXACT_INTEGER are even anyway,
no need to check it.
*/
if (x > 0.0)
i += (double) ((f > 0.5) || (f == 0.5 &&
i <= (double) MAX_EXACT_INTEGER &&
(longlong) i % 2));
else
i -= (double) ((f < -0.5) || (f == -0.5 &&
i >= (double) -MAX_EXACT_INTEGER &&
(longlong) i % 2));
return i;
}
#endif /* HAVE_RINT */
/* Define some general constants */
#ifndef TRUE
@ -1391,4 +1357,39 @@ do { doubleget_union _tmp; \
#define MY_INT64_NUM_DECIMAL_DIGITS 21
#ifndef HAVE_RINT
/**
All integers up to this number can be represented exactly as double precision
values (DBL_MANT_DIG == 53 for IEEE 754 hardware).
*/
#define MAX_EXACT_INTEGER ((1LL << DBL_MANT_DIG) - 1)
/**
rint(3) implementation for platforms that do not have it.
Always rounds to the nearest integer with ties being rounded to the nearest
even integer to mimic glibc's rint() behavior in the "round-to-nearest"
FPU mode. Hardware-specific optimizations are possible (frndint on x86).
Unlike this implementation, hardware will also honor the FPU rounding mode.
*/
static inline double rint(double x)
{
double f, i;
f = modf(x, &i);
/*
All doubles with absolute values > MAX_EXACT_INTEGER are even anyway,
no need to check it.
*/
if (x > 0.0)
i += (double) ((f > 0.5) || (f == 0.5 &&
i <= (double) MAX_EXACT_INTEGER &&
(longlong) i % 2));
else
i -= (double) ((f < -0.5) || (f == -0.5 &&
i >= (double) -MAX_EXACT_INTEGER &&
(longlong) i % 2));
return i;
}
#endif /* HAVE_RINT */
#endif /* my_global_h */