general: simple tgmath test

diff --git a/src/general/tgmath.c b/src/general/tgmath.c
new file mode 100644 (file)
index 0000000..8cc2c3e
--- /dev/null
+++ b/src/general/tgmath.c
@@ -0,0 +1,39 @@
+#include <tgmath.h>
+#include "test.h"
+
+int main(void)
+{
+       long i;
+
+       i = lrint(123456789.1f) & 0x7fffffff;
+       if (i != 123456792)
+               error("lrint(123456789.1f)&0x7fffffff want 123456792 got %ld\n", i);
+       i = lrint(123456789.1) & 0x7fffffff;
+       if (i != 123456789)
+               error("lrint(123456789.1)&0x7fffffff want 123456789 got %ld\n", i);
+
+       if (sqrt(2.0f) != 1.41421353816986083984375)
+               error("sqrt(2.0f) want 0x1.6a09e6p+0 got %a\n", sqrt(2.0f));
+       if (sqrt(2.0) != 1.414213562373095145474621858738828450441360)
+               error("sqrt(2.0) want 0x1.6a09e667f3bcdp+0 got %a\n", sqrt(2.0));
+       if (sqrt(2) != 1.414213562373095145474621858738828450441360)
+               error("sqrt(2) want 0x1.6a09e667f3bcdp+0 got %a\n", sqrt(2.0));
+
+       if (sizeof pow(sqrt(8),0.5f) != sizeof(double))
+               error("sizeof pow(sqrt(8),0.5f) want %d got %d\n", (int)sizeof(double), (int)sizeof pow(sqrt(8),0.5f));
+       if (sizeof pow(2.0,0.5) != sizeof(double))
+               error("sizeof pow(2.0,0.5) want %d got %d\n", (int)sizeof(double), (int)sizeof pow(2.0,0.5));
+       if (sizeof pow(2.0f,0.5f) != sizeof(float))
+               error("sizeof pow(2.0f,0.5f) want %d got %d\n", (int)sizeof(float), (int)sizeof pow(2.0f,0.5f));
+       if (sizeof pow(2.0,0.5+0*I) != sizeof(double complex))
+               error("sizeof pow(2.0,0.5+0*I) want %d got %d\n", (int)sizeof(double complex), (int)sizeof pow(2.0,0.5+0*I));
+
+       if (pow(2.0,0.5) != 1.414213562373095145474621858738828450441360)
+               error("pow(2.0,0.5) want 0x1.6a09e667f3bcdp+0 got %a\n", pow(2.0,0.5));
+       if (pow(2,0.5) != 1.414213562373095145474621858738828450441360)
+               error("pow(2,0.5) want 0x1.6a09e667f3bcdp+0 got %a\n", pow(2,0.5));
+       if (pow(2,0.5f) != 1.414213562373095145474621858738828450441360)
+               error("pow(2,0.5f) want 0x1.6a09e667f3bcdp+0 got %a\n", pow(2,0.5f));
+
+       return test_status;
+}