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authorDanny Smith <dannysmith@users.sourceforge.net>2002-07-29 03:00:10 +0000
committerDanny Smith <dannysmith@users.sourceforge.net>2002-07-29 03:00:10 +0000
commitb8cdc234c67d883b7e9d6e4caf4ba15972ac7788 (patch)
treee45d96d2d976020ad018e6e919bbeae2500e884a /winsup/mingw/mingwex/math/fpclassifyf.c
parent840e611264ac6ad7d41bc0b275945f50067cda50 (diff)
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Add incomplet long double math support to libmingwex.a
Diffstat (limited to 'winsup/mingw/mingwex/math/fpclassifyf.c')
-rw-r--r--winsup/mingw/mingwex/math/fpclassifyf.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/winsup/mingw/mingwex/math/fpclassifyf.c b/winsup/mingw/mingwex/math/fpclassifyf.c
new file mode 100644
index 000000000..aca4e59f1
--- /dev/null
+++ b/winsup/mingw/mingwex/math/fpclassifyf.c
@@ -0,0 +1,10 @@
+#include <math.h>
+int __fpclassifyf (float _x){
+ unsigned short sw;
+ __asm__ (
+ "fxam; fstsw %%ax;"
+ : "=a" (sw)
+ : "t" (_x)
+ );
+ return sw & (FP_NAN | FP_NORMAL | FP_ZERO );
+}