diff --git a/liba/test/ieee754.c b/liba/test/ieee754.c
index 6974c432b..8c3fda649 100644
--- a/liba/test/ieee754.c
+++ b/liba/test/ieee754.c
@@ -4,11 +4,18 @@
 #include <private/ieee754.h>
 
 QUIZ_CASE(liba_ieee754) {
-  assert(ieee754man(123.456f) == 7793017);
-  assert(ieee754exp(123.456f) == 133);
-  assert(ieee754man(555.555f) == 713605);
-  assert(ieee754exp(555.555f) == 136);
-  assert(ieee754man(0.007f) == 6643778);
-  assert(ieee754exp(0.007f) == 119);
+  assert(ieee754man32(123.456f) == 7793017);
+  assert(ieee754exp32(123.456f) == 133);
+  assert(ieee754man32(555.555f) == 713605);
+  assert(ieee754exp32(555.555f) == 136);
+  assert(ieee754man32(0.007f) == 6643778);
+  assert(ieee754exp32(0.007f) == 119);
+  assert(ieee754man64(123.456) == 0b1110110111010010111100011010100111111011111001110111);
+  assert(ieee754exp64(123.456) == 0b10000000101);
+  assert(ieee754man64(555.555) == 0b0001010111000111000010100011110101110000101000111101);
+  assert(ieee754exp64(555.555) == 0b10000001000);
+  assert(ieee754man64(0.007) == 0b1100101011000000100000110001001001101110100101111001);
+  assert(ieee754exp64(0.007) == 0b01111110111);
   assert(isinf(INFINITY));
+  assert(isinf((double)INFINITY));
 }