Changeset 06b0211b in mainline for uspace/lib/posix/include/posix/float.h

Timestamp:

2013-04-29T11:29:45Z (12 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

aa2b32c

Parents:

ba4799a (diff), df956b9b (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes

File:

• uspace/lib/posix/include/posix/float.h (modified) (3 diffs)

uspace/lib/posix/include/posix/float.h

@@ -36 +36 @@
 #define POSIX_FLOAT_H_
 
-/*
- * The macros defined below are needed for compilation of MPFR
- * (http://www.mpfr.org/). Probably, they should be provided by GCC
- * itself but that does not work for cross-compilation.
- *
+/* Rouding direction -1 - unknown */
+#define FLT_ROUNDS (-1)
+
+/* define some standard C constants in terms of GCC built-ins */
+#ifdef __GNUC__
+        #undef DBL_MANT_DIG
+        #define DBL_MANT_DIG __DBL_MANT_DIG__
+        #undef DBL_MIN_EXP
+        #define DBL_MIN_EXP __DBL_MIN_EXP__
+        #undef DBL_MAX_EXP
+        #define DBL_MAX_EXP __DBL_MAX_EXP__
+        #undef DBL_MAX
+        #define DBL_MAX __DBL_MAX__
+        #undef DBL_MAX_10_EXP
+        #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
+        #undef DBL_MIN_10_EXP
+        #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
+        #undef DBL_MIN
+        #define DBL_MIN __DBL_MIN__
+        #undef DBL_DIG
+        #define DBL_DIG __DBL_DIG__
+        #undef DBL_EPSILON
+        #define DBL_EPSILON __DBL_EPSILON__
+        #undef FLT_RADIX
+        #define FLT_RADIX __FLT_RADIX__
+#else
+/* For something else than GCC, following definitions are provided.
  * They are intentionally guarded by the given macro to ensure that anyone
  * who wants them states this explicitly.
@@ -50 +72 @@
  */
 #ifdef FLOAT_H_YES_I_REALLY_WANT_LIMITS
-
 /* float limits */
 #define FLT_MIN 1.1754943508222875079687365372222456778186655567720875215087517062784172594547271728515625e-38
@@ -82 +103 @@
 #endif
 
+#endif /* __GNUC__ */
+
 #endif /* POSIX_FLOAT_H_ */