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comparison libquadmath/libquadmath.texi @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 561a7518be6b
children 84e7813d76e9
comparison
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68:561a7518be6b 111:04ced10e8804
4 @setfilename libquadmath.info 4 @setfilename libquadmath.info
5 @settitle GCC libquadmath 5 @settitle GCC libquadmath
6 @c %**end of header 6 @c %**end of header
7 7
8 @copying 8 @copying
9 Copyright @copyright{} 2010 Free Software Foundation, Inc. 9 Copyright @copyright{} 2010-2017 Free Software Foundation, Inc.
10 10
11 @quotation 11 @quotation
12 Permission is granted to copy, distribute and/or modify this document 12 Permission is granted to copy, distribute and/or modify this document
13 under the terms of the GNU Free Documentation License, Version 1.2 or 13 under the terms of the GNU Free Documentation License, Version 1.2 or
14 any later version published by the Free Software Foundation; with no 14 any later version published by the Free Software Foundation; with no
121 @item @code{M_LOG2Eq}: binary logarithm of 2 121 @item @code{M_LOG2Eq}: binary logarithm of 2
122 @item @code{M_LOG10Eq}: common, decimal logarithm of 2 122 @item @code{M_LOG10Eq}: common, decimal logarithm of 2
123 @item @code{M_LN2q}: natural logarithm of 2 123 @item @code{M_LN2q}: natural logarithm of 2
124 @item @code{M_LN10q}: natural logarithm of 10 124 @item @code{M_LN10q}: natural logarithm of 10
125 @item @code{M_PIq}: pi 125 @item @code{M_PIq}: pi
126 @item @code{M_PI_2q}: two pi 126 @item @code{M_PI_2q}: pi divided by two
127 @item @code{M_PI_4q}: four pi 127 @item @code{M_PI_4q}: pi divided by four
128 @item @code{M_1_PIq}: one over pi 128 @item @code{M_1_PIq}: one over pi
129 @item @code{M_2_PIq}: one over two pi 129 @item @code{M_2_PIq}: one over two pi
130 @item @code{M_2_SQRTPIq}: two over square root of pi 130 @item @code{M_2_SQRTPIq}: two over square root of pi
131 @item @code{M_SQRT2q}: square root of 2 131 @item @code{M_SQRT2q}: square root of 2
132 @item @code{M_SQRT1_2q}: one over square root of 2 132 @item @code{M_SQRT1_2q}: one over square root of 2
178 @item @code{jnq}: Bessel function of the first kind, @var{n}-th order 178 @item @code{jnq}: Bessel function of the first kind, @var{n}-th order
179 @item @code{ldexpq}: load exponent of the value 179 @item @code{ldexpq}: load exponent of the value
180 @item @code{lgammaq}: logarithmic gamma function 180 @item @code{lgammaq}: logarithmic gamma function
181 @item @code{llrintq}: round to nearest integer value 181 @item @code{llrintq}: round to nearest integer value
182 @item @code{llroundq}: round to nearest integer value away from zero 182 @item @code{llroundq}: round to nearest integer value away from zero
183 @item @code{logbq}: get exponent of the value
183 @item @code{logq}: natural logarithm function 184 @item @code{logq}: natural logarithm function
184 @item @code{log10q}: base 10 logarithm function 185 @item @code{log10q}: base 10 logarithm function
185 @item @code{log1pq}: compute natural logarithm of the value plus one 186 @item @code{log1pq}: compute natural logarithm of the value plus one
186 @item @code{log2q}: base 2 logarithm function 187 @item @code{log2q}: base 2 logarithm function
187 @need 800 188 @need 800
197 @item @code{rintq}: round-to-nearest integral value 198 @item @code{rintq}: round-to-nearest integral value
198 @item @code{roundq}: round-to-nearest integral value, return @code{__float128} 199 @item @code{roundq}: round-to-nearest integral value, return @code{__float128}
199 @item @code{scalblnq}: compute exponent using @code{FLT_RADIX} 200 @item @code{scalblnq}: compute exponent using @code{FLT_RADIX}
200 @item @code{scalbnq}: compute exponent using @code{FLT_RADIX} 201 @item @code{scalbnq}: compute exponent using @code{FLT_RADIX}
201 @item @code{signbitq}: return sign bit 202 @item @code{signbitq}: return sign bit
202 @item @code{sincosq}: calculate sine and cosine simulataneously 203 @item @code{sincosq}: calculate sine and cosine simultaneously
203 @item @code{sinhq}: hyperbolic sine function 204 @item @code{sinhq}: hyperbolic sine function
204 @item @code{sinq}: sine function 205 @item @code{sinq}: sine function
205 @item @code{sqrtq}: square root function 206 @item @code{sqrtq}: square root function
206 @item @code{tanq}: tangent function 207 @item @code{tanq}: tangent function
207 @item @code{tanhq}: hyperbolic tangent function 208 @item @code{tanhq}: hyperbolic tangent function
254 255
255 256
256 @node strtoflt128 257 @node strtoflt128
257 @section @code{strtoflt128} --- Convert from string 258 @section @code{strtoflt128} --- Convert from string
258 259
259 The function @code{dmath_strtopQ} converts a string into a 260 The function @code{strtoflt128} converts a string into a
260 @code{__float128} number. 261 @code{__float128} number.
261 262
262 @table @asis 263 @table @asis
263 @item Syntax 264 @item Syntax
264 @code{__float128 strtoflt128 (const char *s, char **sp)} 265 @code{__float128 strtoflt128 (const char *s, char **sp)}
307 @multitable @columnfractions .15 .70 308 @multitable @columnfractions .15 .70
308 @item @var{s} @tab output string 309 @item @var{s} @tab output string
309 @item @var{size} @tab byte size of the string, including tailing NUL 310 @item @var{size} @tab byte size of the string, including tailing NUL
310 @item @var{format} @tab conversion specifier string 311 @item @var{format} @tab conversion specifier string
311 @end multitable 312 @end multitable
313
314 @item Note
315 On some targets when supported by the C library hooks are installed
316 for @code{printf} family of functions, so that @code{printf ("%Qe", 1.2Q);}
317 etc.@: works too.
312 318
313 @item Example 319 @item Example
314 @smallexample 320 @smallexample
315 #include <quadmath.h> 321 #include <quadmath.h>
316 #include <stdlib.h> 322 #include <stdlib.h>
349 @} 355 @}
350 @end smallexample 356 @end smallexample
351 357
352 @end table 358 @end table
353 359
354 On some targets when supported by the C library hooks are installed
355 for @code{printf} family of functions, so that @code{printf ("%Qe", 1.2Q);}
356 etc.@: works too.
357
358 360
359 @c --------------------------------------------------------------------- 361 @c ---------------------------------------------------------------------
360 @c GNU Free Documentation License 362 @c GNU Free Documentation License
361 @c --------------------------------------------------------------------- 363 @c ---------------------------------------------------------------------
362 364