Changeset 9539be6 in mainline for uspace/lib/softfloat/generic/conversion.c

Timestamp:

2010-06-22T14:13:55Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

851f33a

Parents:

402eda5

Message:

autotool now also detects values of UINT_MAX and friends

File:

• uspace/lib/softfloat/generic/conversion.c (modified) (11 diffs)

uspace/lib/softfloat/generic/conversion.c

@@ -27 +27 @@
  */
 
-/** @addtogroup softfloat       
+/** @addtogroup softfloat
  * @{
  */
@@ -45 +45 @@
         result.parts.sign = a.parts.sign;
         result.parts.fraction = a.parts.fraction;
-        result.parts.fraction <<= (FLOAT64_FRACTION_SIZE - FLOAT32_FRACTION_SIZE );
-        
-        if ((isFloat32Infinity(a))||(isFloat32NaN(a))) {
+        result.parts.fraction <<= (FLOAT64_FRACTION_SIZE - FLOAT32_FRACTION_SIZE);
+        
+        if ((isFloat32Infinity(a)) || (isFloat32NaN(a))) {
                 result.parts.exp = 0x7FF;
                 /* TODO; check if its correct for SigNaNs*/
@@ -53 +53 @@
         };
         
-        result.parts.exp = a.parts.exp + ( (int)FLOAT64_BIAS - FLOAT32_BIAS );
+        result.parts.exp = a.parts.exp + ((int) FLOAT64_BIAS - FLOAT32_BIAS);
         if (a.parts.exp == 0) {
                 /* normalize denormalized numbers */
@@ -181 +181 @@
 uint32_t float32_to_uint32(float32 a)
 {
-        if (isFloat32NaN(a)) {
-                return MAX_UINT32;
-        }
-        
-        if (isFloat32Infinity(a) || (a.parts.exp >= (32 + FLOAT32_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_UINT32;
-                }
-                return MAX_UINT32;
-        }
-        
-        return _float32_to_uint32_helper(a);    
+        if (isFloat32NaN(a))
+                return UINT32_MAX;
+        
+        if (isFloat32Infinity(a) || (a.parts.exp >= (32 + FLOAT32_BIAS))) {
+                if (a.parts.sign)
+                        return UINT32_MIN;
+                
+                return UINT32_MAX;
+        }
+        
+        return _float32_to_uint32_helper(a);
 }
 
@@ -201 +200 @@
 int32_t float32_to_int32(float32 a)
 {
-        if (isFloat32NaN(a)) {
-                return MAX_INT32;
-        }
-        
-        if (isFloat32Infinity(a) || (a.parts.exp >= (32 + FLOAT32_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_INT32;
-                }
-                return MAX_INT32;
-        }
+        if (isFloat32NaN(a))
+                return INT32_MAX;
+        
+        if (isFloat32Infinity(a) || (a.parts.exp >= (32 + FLOAT32_BIAS))) {
+                if (a.parts.sign)
+                        return INT32_MIN;
+                
+                return INT32_MAX;
+        }
+        
         return _float32_to_uint32_helper(a);
-}       
+}
 
 
@@ -249 +248 @@
 uint64_t float64_to_uint64(float64 a)
 {
-        if (isFloat64NaN(a)) {
-                return MAX_UINT64;
-        }
-        
-        if (isFloat64Infinity(a) || (a.parts.exp >= (64 + FLOAT64_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_UINT64;
-                }
-                return MAX_UINT64;
-        }
-        
-        return _float64_to_uint64_helper(a);    
+        if (isFloat64NaN(a))
+                return UINT64_MAX;
+        
+        
+        if (isFloat64Infinity(a) || (a.parts.exp >= (64 + FLOAT64_BIAS))) {
+                if (a.parts.sign)
+                        return UINT64_MIN;
+                
+                return UINT64_MAX;
+        }
+        
+        return _float64_to_uint64_helper(a);
 }
 
@@ -269 +268 @@
 int64_t float64_to_int64(float64 a)
 {
-        if (isFloat64NaN(a)) {
-                return MAX_INT64;
-        }
-        
-        if (isFloat64Infinity(a) || (a.parts.exp >= (64 + FLOAT64_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_INT64;
-                }
-                return MAX_INT64;
-        }
+        if (isFloat64NaN(a))
+                return INT64_MAX;
+        
+        
+        if (isFloat64Infinity(a) || (a.parts.exp >= (64 + FLOAT64_BIAS))) {
+                if (a.parts.sign)
+                        return INT64_MIN;
+                
+                return INT64_MAX;
+        }
+        
         return _float64_to_uint64_helper(a);
-}       
+}
 
 
@@ -320 +320 @@
 uint64_t float32_to_uint64(float32 a)
 {
-        if (isFloat32NaN(a)) {
-                return MAX_UINT64;
-        }
-        
-        if (isFloat32Infinity(a) || (a.parts.exp >= (64 + FLOAT32_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_UINT64;
-                }
-                return MAX_UINT64;
-        }
-        
-        return _float32_to_uint64_helper(a);    
+        if (isFloat32NaN(a))
+                return UINT64_MAX;
+        
+        
+        if (isFloat32Infinity(a) || (a.parts.exp >= (64 + FLOAT32_BIAS))) {
+                if (a.parts.sign)
+                        return UINT64_MIN;
+                
+                return UINT64_MAX;
+        }
+        
+        return _float32_to_uint64_helper(a);
 }
 
@@ -340 +340 @@
 int64_t float32_to_int64(float32 a)
 {
-        if (isFloat32NaN(a)) {
-                return MAX_INT64;
-        }
-        
-        if (isFloat32Infinity(a) || (a.parts.exp >= (64 + FLOAT32_BIAS)))  {
-                if (a.parts.sign) {
-                        return (MIN_INT64);
-                }
-                return MAX_INT64;
-        }
+        if (isFloat32NaN(a))
+                return INT64_MAX;
+        
+        if (isFloat32Infinity(a) || (a.parts.exp >= (64 + FLOAT32_BIAS))) {
+                if (a.parts.sign)
+                        return INT64_MIN;
+                
+                return INT64_MAX;
+        }
+        
         return _float32_to_uint64_helper(a);
-}       
+}
 
 
@@ -360 +360 @@
 uint32_t float64_to_uint32(float64 a)
 {
-        if (isFloat64NaN(a)) {
-                return MAX_UINT32;
-        }
-        
-        if (isFloat64Infinity(a) || (a.parts.exp >= (32 + FLOAT64_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_UINT32;
-                }
-                return MAX_UINT32;
-        }
-        
-        return (uint32_t)_float64_to_uint64_helper(a);  
+        if (isFloat64NaN(a))
+                return UINT32_MAX;
+        
+        
+        if (isFloat64Infinity(a) || (a.parts.exp >= (32 + FLOAT64_BIAS))) {
+                if (a.parts.sign)
+                        return UINT32_MIN;
+                
+                return UINT32_MAX;
+        }
+        
+        return (uint32_t) _float64_to_uint64_helper(a);
 }
 
@@ -380 +380 @@
 int32_t float64_to_int32(float64 a)
 {
-        if (isFloat64NaN(a)) {
-                return MAX_INT32;
-        }
-        
-        if (isFloat64Infinity(a) || (a.parts.exp >= (32 + FLOAT64_BIAS)))  {
-                if (a.parts.sign) {
-                        return MIN_INT32;
-                }
-                return MAX_INT32;
-        }
-        return (int32_t)_float64_to_uint64_helper(a);
-}       
+        if (isFloat64NaN(a))
+                return INT32_MAX;
+        
+        
+        if (isFloat64Infinity(a) || (a.parts.exp >= (32 + FLOAT64_BIAS))) {
+                if (a.parts.sign)
+                        return INT32_MIN;
+                
+                return INT32_MAX;
+        }
+        
+        return (int32_t) _float64_to_uint64_helper(a);
+}
 
 /** Convert unsigned integer to float32