http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47295
Summary: libquadmath: List __complex128 and constants in the
.texi file
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: documentation
Severity: normal
Priority: P3
Component: fortran
AssignedTo: [email protected]
ReportedBy: [email protected]
libquadmath.h contains a typedef and several macros (constants), which should
be listed in the documentation.
typedef _Complex float __attribute__((mode(TC))) __complex128;
// Macros
#define FLT128_MAX 1.18973149535723176508575932662800702e4932Q
#define FLT128_MIN 3.36210314311209350626267781732175260e-4932Q
#define FLT128_EPSILON 1.92592994438723585305597794258492732e-34Q
#define FLT128_DENORM_MIN 6.475175119438025110924438958227646552e-4966Q
#define FLT128_MANT_DIG 113
#define FLT128_MIN_EXP (-16381)
#define FLT128_MAX_EXP 16384
// TODO -- One day, we need to add the following macros:
// FLT128_DIG, FLT128_MIN_10_EXP, FLT128_MAX_10_EXP
#define HUGE_VALQ __builtin_huge_valq()
The math constants are added via
http://gcc.gnu.org/ml/gcc-patches/2011-01/msg00332.html
+#define M_Eq 2.7182818284590452353602874713526625Q /* e */
+#define M_LOG2Eq 1.4426950408889634073599246810018921Q /* log_2 e */
+#define M_LOG10Eq 0.4342944819032518276511289189166051Q /* log_10 e */
+#define M_LN2q 0.6931471805599453094172321214581766Q /* log_e 2 */
+#define M_LN10q 2.3025850929940456840179914546843642Q /* log_e 10 */
+#define M_PIq 3.1415926535897932384626433832795029Q /* pi */
+#define M_PI_2q 1.5707963267948966192313216916397514Q /* pi/2 */
+#define M_PI_4q 0.7853981633974483096156608458198757Q /* pi/4 */
+#define M_1_PIq 0.3183098861837906715377675267450287Q /* 1/pi */
+#define M_2_PIq 0.6366197723675813430755350534900574Q /* 2/pi */
+#define M_2_SQRTPIq 1.1283791670955125738961589031215452Q /* 2/sqrt(pi) */
+#define M_SQRT2q 1.4142135623730950488016887242096981Q /* sqrt(2) */
+#define M_SQRT1_2q 0.7071067811865475244008443621048490Q /* 1/sqrt(2) */
