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 dce9e2d..89e9eb6 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 e18267d..c356cba 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 dce9e2d..89e9eb6 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 dce9e2d..89e9eb6 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 dce9e2d..89e9eb6 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 17fd74d..9ea2991 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 ea25f27..c7b208a 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