Fix and extend *FCAST test in tcctest.c

Result of float to unsigned integer conversion is undefined if float is negative. This commit take the absolute value of the float before doing the conversion to unsigned integer and add more float to integer conversion test.

Thomas Preud'homme committed 12 years ago

Commit 02d2ca81 parent 17314a11 file · +8 −5Browse files

Unified · Split

tests/tcctest.c+8−5

     double da;\
     LONG_DOUBLE la;\
     int ia;\
-    long long lla;\
+    long long llia;\
     unsigned int ua;\
     unsigned long long llua;\
     type b;\
     la = a;\
     printf("ftof: %f %f %Lf\n", fa, da, la);\
     ia = (int)a;\
-    lla = (long long)a;\
+    llia = (long long)a;\
+    a = (a >= 0) ? a : -a;\
     ua = (unsigned int)a;\
     llua = (unsigned long long)a;\
-    printf("ftoi: %d %u\n", ia, ua);\
+    printf("ftoi: %d %u %lld %llu\n", ia, ua, llia, llua);\
     ia = -1234;\
     ua = 0x81234500;\
+    llia = -0x123456789012345LL;\
+    llua = 0xf123456789012345LLU;\
     b = ia;\
     printf("itof: " fmt "\n", b);\
-    b = lla;\
-    printf("lltof: " fmt "\n", b);\
     b = ua;\
     printf("utof: " fmt "\n", b);\
+    b = llia;\
+    printf("lltof: " fmt "\n", b);\
     b = llua;\
     printf("ulltof: " fmt "\n", b);\
 }\

Fix and extend *FCAST test in tcctest.c

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