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Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/_isnanf/test1')
-rw-r--r--src/pal/tests/palsuite/c_runtime/_isnanf/test1/CMakeLists.txt19
-rw-r--r--src/pal/tests/palsuite/c_runtime/_isnanf/test1/test1.c115
-rw-r--r--src/pal/tests/palsuite/c_runtime/_isnanf/test1/testinfo.dat16
3 files changed, 150 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_isnanf/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/CMakeLists.txt
new file mode 100644
index 0000000..a8d42aa
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12.2)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(SOURCES
+ test1.c
+)
+
+add_executable(paltest_isnanf_test1
+ ${SOURCES}
+)
+
+add_dependencies(paltest_isnanf_test1 coreclrpal)
+
+target_link_libraries(paltest_isnanf_test1
+ pthread
+ m
+ coreclrpal
+)
diff --git a/src/pal/tests/palsuite/c_runtime/_isnanf/test1/test1.c b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/test1.c
new file mode 100644
index 0000000..9b75a72
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/test1.c
@@ -0,0 +1,115 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source: test1.c
+**
+** Purpose:
+** Test _isnanf with a number of trivial values, to ensure they indicated that
+** they are numbers. Then try with Positive/Negative Infinite, which should
+** also be numbers. Finally set the least and most significant bits of
+** the fraction to positive and negative, at which point it should return
+** the true value.
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+#define TO_FLOAT(x) (*((float*)((void*)&x)))
+#define TO_I32(x) (*((INT32*)((void*)&x)))
+
+/*
+ * NaN: any float with maximum exponent (0x7f8) and non-zero fraction
+ */
+int __cdecl main(int argc, char *argv[])
+{
+ /*
+ * Initialize the PAL and return FAIL if this fails
+ */
+ if (PAL_Initialize(argc, argv) != 0)
+ {
+ return FAIL;
+ }
+
+ /*
+ * Try some trivial values
+ */
+ if (_isnanf(0.0f))
+ {
+ Fail("_isnanf() incorrectly identified %f as NaN!\n", 0.0f);
+ }
+
+ if (_isnanf(1.234567f))
+ {
+ Fail("_isnanf() incorrectly identified %f as NaN!\n", 1.234567f);
+ }
+
+ if (_isnanf(42.0f))
+ {
+ Fail("_isnanf() incorrectly identified %f as NaN!\n", 42.0f);
+ }
+
+ UINT32 lneginf = 0xff800000u;
+ UINT32 lposinf = 0x7f800000u;
+
+ float neginf = TO_FLOAT(lneginf);
+ float posinf = TO_FLOAT(lposinf);
+
+ /*
+ * Try positive and negative infinity
+ */
+ if (_isnanf(neginf))
+ {
+ Fail("_isnanf() incorrectly identified negative infinity as NaN!\n");
+ }
+
+ if (_isnanf(posinf))
+ {
+ Fail("_isnanf() incorrectly identified infinity as NaN!\n");
+ }
+
+ /*
+ * Try setting the least significant bit of the fraction,
+ * positive and negative
+ */
+ UINT32 lsnan = 0xff800001u;
+ float snan = TO_FLOAT(lsnan);
+
+ if (!_isnanf(snan))
+ {
+ Fail("_isnanf() failed to identify %I32x as NaN!\n", lsnan);
+ }
+
+ UINT32 lqnan = 0x7f800001u;
+ float qnan = TO_FLOAT(lqnan);
+
+ if (!_isnanf(qnan))
+ {
+ Fail("_isnanf() failed to identify %I32x as NaN!\n", lqnan);
+ }
+
+ /*
+ * Try setting the most significant bit of the fraction,
+ * positive and negative
+ */
+ lsnan = 0xffc00000u;
+ snan = TO_FLOAT(lsnan);
+
+ if (!_isnanf(snan))
+ {
+ Fail ("_isnanf() failed to identify %I32x as NaN!\n", lsnan);
+ }
+
+ lqnan = 0x7fc00000u;
+ qnan = TO_FLOAT(lqnan);
+
+ if (!_isnanf(qnan))
+ {
+ Fail ("_isnanf() failed to identify %I32x as NaN!\n", lqnan);
+ }
+
+ PAL_Terminate();
+ return PASS;
+}
diff --git a/src/pal/tests/palsuite/c_runtime/_isnanf/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/testinfo.dat
new file mode 100644
index 0000000..22b0edb
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_isnanf/test1/testinfo.dat
@@ -0,0 +1,16 @@
+# Licensed to the .NET Foundation under one or more agreements.
+# The .NET Foundation licenses this file to you under the MIT license.
+# See the LICENSE file in the project root for more information.
+
+Version = 1.0
+Section = C Runtime
+Function = _isnanf
+Name = Test #1 for _isnanf
+TYPE = DEFAULT
+EXE1 = test1
+Description
+= Test _isnanf with a number of trivial values, to ensure they indicated that
+= they are numbers. Then try with Positive/Negative Infinite, which should
+= also be numbers. Finally set the least and most significant bits of
+= the fraction to positive and negative, at which point it should return
+= the true value.