Changeset e6f5766 in mainline for uspace/lib/math/generic/trunc.c

Timestamp:

2015-09-05T10:11:40Z (9 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

9adb61d

Parents:

01cdd5a

Message:

Use floatN_t types in generic function interfaces.

File:

• uspace/lib/math/generic/trunc.c (modified) (4 diffs)

uspace/lib/math/generic/trunc.c

@@ -51 +51 @@
  *
  */
-float32 trunc_float32(float32 val)
+float32_t float32_trunc(float32_t val)
 {
-        int32_t exp = val.parts.exp - FLOAT32_BIAS;
+        float32_u v;
+        int32_t exp;
+        
+        v.val = val;
+        exp = v.data.parts.exp - FLOAT32_BIAS;
         
         if (exp < 0) {
                 /* -1 < val < 1 => result is +0 or -0 */
-                val.parts.exp = 0;
-                val.parts.fraction = 0;
+                v.data.parts.exp = 0;
+                v.data.parts.fraction = 0;
         } else if (exp >= FLOAT32_FRACTION_SIZE) {
                 if (exp == 1024) {
@@ -68 +72 @@
         } else {
                 /* Truncate irrelevant fraction bits */
-                val.parts.fraction &= ~(UINT32_C(0x007fffff) >> exp);
+                v.data.parts.fraction &= ~(UINT32_C(0x007fffff) >> exp);
         }
         
-        return val;
+        return v.val;
 }
 
@@ -89 +93 @@
  *
  */
-float64 trunc_float64(float64 val)
+float64_t float64_trunc(float64_t val)
 {
-        int32_t exp = val.parts.exp - FLOAT64_BIAS;
+        float64_u v;
+        int32_t exp;
+        
+        v.val = val;
+        exp = v.data.parts.exp - FLOAT64_BIAS;
         
         if (exp < 0) {
                 /* -1 < val < 1 => result is +0 or -0 */
-                val.parts.exp = 0;
-                val.parts.fraction = 0;
+                v.data.parts.exp = 0;
+                v.data.parts.fraction = 0;
         } else if (exp >= FLOAT64_FRACTION_SIZE) {
                 if (exp == 1024) {
@@ -106 +114 @@
         } else {
                 /* Truncate irrelevant fraction bits */
-                val.parts.fraction &= ~(UINT64_C(0x000fffffffffffff) >> exp);
+                v.data.parts.fraction &= ~(UINT64_C(0x000fffffffffffff) >> exp);
         }
         
-        return val;
+        return v.val;
 }