Minor test fixes; minor code improvements
diff --git a/src/ieee754.c b/src/ieee754.c
index 0a36b28..4419f72 100644
--- a/src/ieee754.c
+++ b/src/ieee754.c
@@ -690,10 +690,11 @@
          Result.type = IEEE754_ToInt_NO_CONVERSION;
       }
    } else if(nDoubleUnbiasedExponent == DOUBLE_EXPONENT_INF_OR_NAN) {
-      /* --- NAN or INFINITY --- */
       if(uDoubleSignificand != 0) {
-         Result.type = IEEE754_To_int_NaN; /* dCBOR doesn't care about payload */
+         /* --- NAN --- */
+         Result.type = IEEE754_ToInt_NAN; /* dCBOR doesn't care about payload */
       } else  {
+         /* --- INIFINITY --- */
          Result.type = IEEE754_ToInt_NO_CONVERSION;
       }
    } else if(nDoubleUnbiasedExponent < 0 ||
@@ -773,7 +774,7 @@
    } else if(nSingleUnbiasedExponent == SINGLE_EXPONENT_INF_OR_NAN) {
       /* --- NAN or INFINITY --- */
       if(uSingleleSignificand != 0) {
-         Result.type = IEEE754_To_int_NaN; /* dCBOR doesn't care about payload */
+         Result.type = IEEE754_ToInt_NAN; /* dCBOR doesn't care about payload */
       } else  {
          Result.type = IEEE754_ToInt_NO_CONVERSION;
       }
@@ -791,8 +792,7 @@
        * 64-bit integers always have more precision than the 52-bits
        * of a double.
        */
-       nNonZeroBitsCount = IEEE754_Private_CountNonZeroBits(SINGLE_NUM_SIGNIFICAND_BITS, uSingleleSignificand);
-
+      nNonZeroBitsCount = IEEE754_Private_CountNonZeroBits(SINGLE_NUM_SIGNIFICAND_BITS, uSingleleSignificand);
 
       if(nNonZeroBitsCount && nNonZeroBitsCount > nSingleUnbiasedExponent) {
          /* --- Not a whole number --- */
@@ -801,7 +801,7 @@
          /* --- CONVERTABLE WHOLE NUMBER --- */
          /* Add in the one that is implied in normal floats */
          uInteger = uSingleleSignificand + (1ULL << SINGLE_NUM_SIGNIFICAND_BITS);
-        /* Factor in the exponent */
+         /* Factor in the exponent */
          if(nSingleUnbiasedExponent < SINGLE_NUM_SIGNIFICAND_BITS) {
             /* Numbers less than 2^23 with up to 23 significant bits */
             uInteger >>= SINGLE_NUM_SIGNIFICAND_BITS - nSingleUnbiasedExponent;
diff --git a/src/ieee754.h b/src/ieee754.h
index dfe9989..02b8a39 100644
--- a/src/ieee754.h
+++ b/src/ieee754.h
@@ -97,7 +97,7 @@
    enum {IEEE754_ToInt_IS_INT,
          IEEE754_ToInt_IS_UINT,
          IEEE754_ToInt_NO_CONVERSION,
-         IEEE754_To_int_NaN
+         IEEE754_ToInt_NAN
    } type;
    union {
       uint64_t un_signed;
diff --git a/src/qcbor_encode.c b/src/qcbor_encode.c
index a1fb737..da24c91 100644
--- a/src/qcbor_encode.c
+++ b/src/qcbor_encode.c
@@ -35,6 +35,10 @@
 #include "qcbor/qcbor_encode.h"
 #include "ieee754.h"
 
+#ifndef QCBOR_DISABLE_PREFERRED_FLOAT
+#include <math.h> /* Only for NAN */
+#endif /* ! QCBOR_DISABLE_ENCODE_USAGE_GUARDS */
+
 
 /**
  * @file qcbor_encode.c
@@ -834,7 +838,6 @@
                                 UsefulBufUtil_CopyDoubleToUint64(dNum));
 }
 
-#include <math.h> // For NaN. Maybe a better way?  TODO:
 
 /*
  * Public functions for adding a double. See qcbor/qcbor_encode.h
@@ -863,7 +866,7 @@
          case IEEE754_ToInt_IS_UINT:
             QCBOREncode_AddUInt64(pMe, IntResult.integer.un_signed);
             return;
-         case IEEE754_To_int_NaN:
+         case IEEE754_ToInt_NAN:
             dNum = NAN;
             bNoNaNPayload = true;
             break;
@@ -932,7 +935,7 @@
          case IEEE754_ToInt_IS_UINT:
             QCBOREncode_AddUInt64(pMe, IntResult.integer.un_signed);
             return;
-         case IEEE754_To_int_NaN:
+         case IEEE754_ToInt_NAN:
             fNum = NAN;
             bNoNaNPayload = true;
             break;
diff --git a/test/float_tests.c b/test/float_tests.c
index 3df8639..a46f090 100644
--- a/test/float_tests.c
+++ b/test/float_tests.c
@@ -397,7 +397,7 @@
 FloatValuesTests(void)
 {
    unsigned int                 uTestIndex;
-   const struct FloatTestCase *pTestCase;
+   const struct FloatTestCase  *pTestCase;
    const struct NaNTestCase    *pNaNTestCase;
    MakeUsefulBufOnStack(        TestOutBuffer, 20);
    UsefulBufC                   TestOutput;
@@ -414,13 +414,6 @@
    for(uTestIndex = 0; FloatTestCases[uTestIndex].Preferred.len != 0; uTestIndex++) {
       pTestCase = &FloatTestCases[uTestIndex];
 
-
-      // 9223372036854774784
-     if(pTestCase->dNumber == 1.7976931348623157e308 ||
-        uTestIndex == 77) {
-         uErr = 99; /* For setting break points for particular tests */
-      }
-
       /* Number Encode of Preferred */
       QCBOREncode_Init(&EnCtx, TestOutBuffer);
       QCBOREncode_AddDouble(&EnCtx, pTestCase->dNumber);
@@ -685,10 +678,10 @@
       QCBOREncode_AddDouble(&EnCtx, UsefulBufUtil_CopyUint64ToDouble(pNaNTestCase->uDouble));
       uErr = QCBOREncode_Finish(&EnCtx, &TestOutput);
       if(uErr != QCBOR_SUCCESS) {
-         return MakeTestResultCode(uTestIndex+100, 11, uErr);;
+         return MakeTestResultCode(uTestIndex+100, 14, uErr);;
       }
       if(UsefulBuf_Compare(TestOutput, pNaNTestCase->DCBOR)) {
-         return MakeTestResultCode(uTestIndex+100, 11, 200);
+         return MakeTestResultCode(uTestIndex+100, 14, 200);
       }
 
    }
diff --git a/test/qcbor_encode_tests.c b/test/qcbor_encode_tests.c
index dc186f2..744b011 100644
--- a/test/qcbor_encode_tests.c
+++ b/test/qcbor_encode_tests.c
@@ -692,10 +692,12 @@
    /* Improvement: this test should be broken down into several so it is more
     * managable. Tags and labels could be more sensible */
    QCBOREncodeContext ECtx;
-   UsefulBufC Enc;
-   size_t size;
-   int nReturn = 0;
-   QCBORError uExpectedErr;
+   UsefulBufC         Enc;
+   size_t             size;
+   int                nReturn;
+   QCBORError         uExpectedErr;
+
+   nReturn = 0;
 
    QCBOREncode_Init(&ECtx, UsefulBuf_FROM_BYTE_ARRAY(spBigBuf));
    QCBOREncode_Allow(&ECtx, QCBOR_ENCODE_ALLOW_ALL);
@@ -768,11 +770,10 @@
    /* 0x7ffc0000UL is a NaN with a payload. */
    QCBOREncode_AddFloat(&ECtx, UsefulBufUtil_CopyUint32ToFloat(0x7ffc0000UL));
    if(QCBOREncode_Finish(&ECtx, &Enc) != uExpectedErr) {
-      nReturn = -24;
+      nReturn = -25;
       goto Done;
    }
 
-
 Done:
    return nReturn;
 }
@@ -3438,7 +3439,10 @@
 
    QCBOREncode_CloseMap(&EC);
 
-   QCBOREncode_Finish(&EC, &Encoded);
+   uExpectedErr = QCBOREncode_Finish(&EC, &Encoded);
+   if(uExpectedErr != QCBOR_SUCCESS) {
+      return 2;
+   }
 
    static const uint8_t spExpectedCDE[] = {
       0xA6, 0x61, 0x61, 0x01, 0x61, 0x62, 0xF9, 0x7E,