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authorchai <chaifix@163.com>2019-06-06 00:11:18 +0800
committerchai <chaifix@163.com>2019-06-06 00:11:18 +0800
commit88b882ed0b432c6aff2063213e2f793a36dd25f7 (patch)
tree5fe5d5334050e1a1146aa63e61e88aa2f5170727 /source/external/SDL2/src/libm/s_fabs.c
parentf6c0498c9728a286c13980ed3b60763d02e1b3a0 (diff)
*misc
Diffstat (limited to 'source/external/SDL2/src/libm/s_fabs.c')
-rw-r--r--source/external/SDL2/src/libm/s_fabs.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/source/external/SDL2/src/libm/s_fabs.c b/source/external/SDL2/src/libm/s_fabs.c
new file mode 100644
index 0000000..9ee943c
--- /dev/null
+++ b/source/external/SDL2/src/libm/s_fabs.c
@@ -0,0 +1,29 @@
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * fabs(x) returns the absolute value of x.
+ */
+
+/*#include <features.h>*/
+/* Prevent math.h from defining a colliding inline */
+#undef __USE_EXTERN_INLINES
+#include "math_libm.h"
+#include "math_private.h"
+
+double fabs(double x)
+{
+ u_int32_t high;
+ GET_HIGH_WORD(high,x);
+ SET_HIGH_WORD(x,high&0x7fffffff);
+ return x;
+}
+libm_hidden_def(fabs)