/* Conformance Test 14.9.0.1: Verification of tolower, _tolower, toupper, */ /* _toupper functions */ #include 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"); }