ORCA-C/Tests/Conformance/C14.9.0.1.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

63 lines
1.4 KiB
C++

/* Conformance Test 14.9.0.1: Verification of tolower, _tolower, toupper, */
/* _toupper functions */
#include <ctype.h>
int printf(const char *, ...);
int main (void)
{
int i, j;
char ch;
unsigned char uc;
/* tolower: converts uppercase letter to lowercase letter; if character */
/* is not alphabetic, then just returns character unchanged */
for (ch = 'A', uc = 'a'; uc <= 'z'; ch++, uc++)
{
j = tolower (ch);
if (j != uc)
goto Fail;
j = _tolower (ch);
if (j != uc)
goto Fail;
j = tolower (uc);
if (j != uc)
goto Fail;
j = _tolower (uc);
if (j != uc)
goto Fail;
}
/* toupper: converts lowercase letter to uppercase letter; if character */
/* is not alphabetic, then just returns character unchanged */
for (ch = 'A', uc = 'a'; uc <= 'z'; ch++, uc++)
{
j = toupper (uc);
if (j != ch)
goto Fail;
j = _toupper (uc);
if (j != ch)
goto Fail;
j = toupper (ch);
if (j != ch)
goto Fail;
j = _toupper (ch);
if (j != ch)
goto Fail;
}
printf ("Passed Conformance Test 14.9.0.1\n");
return 0;
Fail:
printf ("Failed Conformance Test 14.9.0.1\n");
}