Commit: c1ae16729a3b4733f0435041ed498852a2ffa1fc - mruby_brightv_hello (git)

超漢字上で、mrubyを使ってhello worldを表示させる。

Commit MetaInfo

• Revision: c1ae16729a3b4733f0435041ed498852a2ffa1fc (tree)
• Time: 2014-07-22 01:46:13
• Author: ornse01 <ornse01@user...>
• Commiter: ornse01

Log Message

fix isinf() and isnan()

Change Summary

• modified: src/posix.c

Incremental Difference

--- a/src/posix.c
+++ b/src/posix.c
@@ -6,7 +6,7 @@
 
 double __nan()
 {
-	static char nan_byte[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f};
+	static char nan_byte[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff};
 	return *(double*)nan_byte;
 }
 
@@ -19,7 +19,8 @@ int isnan(double x)
 int isinf(double x)
 {
 	double inf = INFINITY;
-	return memcmp(&x, &inf, sizeof(double)) == 0;
+	double ninf = -inf;
+	return (memcmp(&x, &inf, sizeof(double)) == 0) || (memcmp(&x, &ninf, sizeof(double)) == 0);
 }
 
 int isfinite(double x)