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author | camthesaxman <camthesaxman@users.noreply.github.com> | 2020-01-29 18:17:43 -0600 |
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committer | camthesaxman <camthesaxman@users.noreply.github.com> | 2020-01-29 18:17:43 -0600 |
commit | cdc6e2c50f96119bdc4c1205ff5901ca82ec8357 (patch) | |
tree | 3e9217eabcf444e166008411f445315606dded59 /gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c | |
parent | 27176890c4a688ea7de44d3f55af32827016a9fd (diff) |
add old compiler with ARM support
Diffstat (limited to 'gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c')
-rwxr-xr-x | gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c b/gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c new file mode 100755 index 0000000..31b494f --- /dev/null +++ b/gcc_arm/testsuite/gcc.c-torture/unsorted/udconvert.c @@ -0,0 +1,30 @@ +double +unsigned_to_double1 (u) + unsigned u; +{ + double d; + d = (int) u; /* convert as from a *signed* integer */ + return ((int) u < 0) + ? d + 4294967296.0 + : d; +} + +/* Alternatively */ + +double +unsigned_to_double2 (u) + unsigned u; +{ + double d; + u -= 2147483648; /* complement sign bit */ + d = (int) u; /* convert as from a *signed* integer */ + return d + 2147483648.0; +} + +unsigned +double_to_unsigned (d) + double d; +{ + d += 2147483648.0; + return ((int) d) - 2147483648; +} |