ORCA-C/Tests/Deviance/D4.6.6.1.CC
Stephen Heumann 91d33b586d Fix various C99+ conformance issues and bugs in test cases.
The main changes made to most tests are:

*Declarations always include explicit types, not relying on implicit int. The declaration of main in most test programs is changed to be "int main (void) {...}", adding an explicit return type and a prototype. (There are still some non-prototyped functions, though.)

*Functions are always declared before use, either by including a header or by providing a declaration for the specific function. The latter approach is usually used for printf, to avoid requiring ORCA/C to process stdio.h when compiling every test case (which might make test runs noticeably slower).

*Make all return statements in non-void functions (e.g. main) return a value.

*Avoid some instances of undefined behavior and type errors in printf and scanf calls.

Several miscellaneous bugs are also fixed.

There are still a couple test cases that intentionally rely on the C89 behavior, to ensure it still works.
2022-10-17 20:17:24 -05:00

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/* Deviance Test 4.6.6.1: Ensure illegal initialization of structures is */
/* detected */
int printf(const char *, ...);
struct S1 { int i;
float f; } s1 = { 3, 8.0, 'a' }; /* too many values */
struct S1 s2 = 2, 7.6; /* can't omit outer braces */
static struct S1 s3 = { 5, 5.0, 6.0, 77.77 }; /* too many values */
static struct S1 s4 = 0, 0.0; /* can't omit outer braces */
int main (void)
{
int i = 8;
float f = 3.5;
auto struct S1 s1 = { i * 2, f }; /* can only use constants */
register struct S1 s2 = { s1.i, f / 3.0 };
auto struct S1 s3 = { 4, 4, 5, }; /* too many values */
register struct S1 s4 = { 3, 2.0, 5.0E10 };
auto struct S1 s5 = 6, 17.9; /* can't omit outer braces */
register struct S1 s6 = 77, 90.0;
printf ("Failed Deviance Test 4.6.6.1\n");
}