add FLT_TRUE_MIN, etc. macros from C11

there was some question as to how many decimal places to use, since
one decimal place is always sufficient to identify the smallest
denormal uniquely. for now, I'm following the example in the C
standard which is consistent with the other min/max macros we already
had in place.

diff --git a/arch/arm/bits/float.h b/arch/arm/bits/float.h
index dce9e2d9802583e2f7a404d3f0fa5bc9728eb77b..89e9eb6efcfa57928422f18849d51067d7157824 100644 (file)
--- a/arch/arm/bits/float.h
+++ b/arch/arm/bits/float.h
@@ -1,6 +1,7 @@
 #define FLT_ROUNDS 1
 #define FLT_EVAL_METHOD 0
 
+#define LDBL_TRUE_MIN 4.9406564584124654e-324
 #define LDBL_MIN 2.2250738585072014e-308
 #define LDBL_MAX 1.7976931348623157e+308
 #define LDBL_EPSILON 2.2204460492503131e-16

diff --git a/arch/i386/bits/float.h b/arch/i386/bits/float.h
index e18267d32e98c9e9a60ad881991b0184791bd21a..c356cba9217f5b4080a671d592fd07049fe3a4ce 100644 (file)
--- a/arch/i386/bits/float.h
+++ b/arch/i386/bits/float.h
@@ -5,6 +5,7 @@
 #define FLT_EVAL_METHOD 2
 #endif
 
+#define LDBL_TRUE_MIN 3.6451995318824746025e-4951L
 #define LDBL_MIN     3.3621031431120935063e-4932L
 #define LDBL_MAX     1.1897314953572317650e+4932L
 #define LDBL_EPSILON 1.0842021724855044340e-19L

diff --git a/arch/microblaze/bits/float.h b/arch/microblaze/bits/float.h
index dce9e2d9802583e2f7a404d3f0fa5bc9728eb77b..89e9eb6efcfa57928422f18849d51067d7157824 100644 (file)
--- a/arch/microblaze/bits/float.h
+++ b/arch/microblaze/bits/float.h
@@ -1,6 +1,7 @@
 #define FLT_ROUNDS 1
 #define FLT_EVAL_METHOD 0
 
+#define LDBL_TRUE_MIN 4.9406564584124654e-324
 #define LDBL_MIN 2.2250738585072014e-308
 #define LDBL_MAX 1.7976931348623157e+308
 #define LDBL_EPSILON 2.2204460492503131e-16

diff --git a/arch/mips/bits/float.h b/arch/mips/bits/float.h
index dce9e2d9802583e2f7a404d3f0fa5bc9728eb77b..89e9eb6efcfa57928422f18849d51067d7157824 100644 (file)
--- a/arch/mips/bits/float.h
+++ b/arch/mips/bits/float.h
@@ -1,6 +1,7 @@
 #define FLT_ROUNDS 1
 #define FLT_EVAL_METHOD 0
 
+#define LDBL_TRUE_MIN 4.9406564584124654e-324
 #define LDBL_MIN 2.2250738585072014e-308
 #define LDBL_MAX 1.7976931348623157e+308
 #define LDBL_EPSILON 2.2204460492503131e-16

diff --git a/arch/powerpc/bits/float.h b/arch/powerpc/bits/float.h
index dce9e2d9802583e2f7a404d3f0fa5bc9728eb77b..89e9eb6efcfa57928422f18849d51067d7157824 100644 (file)
--- a/arch/powerpc/bits/float.h
+++ b/arch/powerpc/bits/float.h
@@ -1,6 +1,7 @@
 #define FLT_ROUNDS 1
 #define FLT_EVAL_METHOD 0
 
+#define LDBL_TRUE_MIN 4.9406564584124654e-324
 #define LDBL_MIN 2.2250738585072014e-308
 #define LDBL_MAX 1.7976931348623157e+308
 #define LDBL_EPSILON 2.2204460492503131e-16

diff --git a/arch/x86_64/bits/float.h b/arch/x86_64/bits/float.h
index 17fd74d7447a5521d5547d4106b65804c2c1b931..9ea29914a2a7776dbeaf4c56d768fe3199191750 100644 (file)
--- a/arch/x86_64/bits/float.h
+++ b/arch/x86_64/bits/float.h
@@ -5,6 +5,7 @@
 #define FLT_EVAL_METHOD 0
 #endif
 
+#define LDBL_TRUE_MIN 3.6451995318824746025e-4951L
 #define LDBL_MIN     3.3621031431120935063e-4932L
 #define LDBL_MAX     1.1897314953572317650e+4932L
 #define LDBL_EPSILON 1.0842021724855044340e-19L

diff --git a/include/float.h b/include/float.h
index ea25f270a799fb8663943f8494cd598b96cdee57..c7b208afe4a15be9e2c395b45afdc79368f22adb 100644 (file)
--- a/include/float.h
+++ b/include/float.h
@@ -3,6 +3,7 @@
 
 #define FLT_RADIX 2
 
+#define FLT_TRUE_MIN 1.40129846e-45F
 #define FLT_MIN 1.17549435e-38F
 #define FLT_MAX 3.40282347e+38F
 #define FLT_EPSILON 1.19209290e-07F
@@ -15,6 +16,7 @@
 #define FLT_MIN_10_EXP (-37)
 #define FLT_MAX_10_EXP 38
 
+#define DBL_TRUE_MIN 4.9406564584124654e-324
 #define DBL_MIN 2.2250738585072014e-308
 #define DBL_MAX 1.7976931348623157e+308
 #define DBL_EPSILON 2.2204460492503131e-16