68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* $NetBSD: expr_binary_trad.c,v 1.3 2023/03/28 14:44:34 rillig Exp $ */
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# 3 "expr_binary_trad.c"
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/*
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* Test binary operators in traditional C.
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*/
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/* lint1-flags: -tw -X 351 */
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struct incompatible { /* just to generate the error message */
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int member;
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};
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struct incompatible sink;
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/*
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* Test the usual arithmetic conversions.
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*
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* C99 6.3.1.8 "Usual arithmetic conversions"
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*/
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void
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cover_balance()
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{
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/* expect+1: ... 'pointer to char' ... */
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sink = (char *)0 + 0;
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/* expect+1: ... 'pointer to char' ... */
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sink = 0 + (char *)0;
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/* expect+1: ... 'int' ... */
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sink = 1 + 1;
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/* expect+1: ... 'double' ... */
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sink = 0.0 + 0;
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/* expect+1: ... 'double' ... */
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sink = 0 + 0.0;
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/* expect+1: ... 'double' ... */
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sink = 0.0 + (float)0.0;
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/* expect+1: ... 'double' ... */
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sink = (float)0.0 + 0.0;
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/*
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* In traditional C, 'float' gets promoted to 'double' before
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* applying the usual arithmetic conversions; see 'promote'.
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*/
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/* expect+1: ... 'double' ... */
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sink = (float)0.0 + 0;
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/* expect+1: ... 'double' ... */
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sink = 0 + (float)0.0;
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/* expect+1: ... 'unsigned long' ... */
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sink = (unsigned long)0 + 0;
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/* expect+1: ... 'unsigned long' ... */
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sink = 0 + (unsigned long)0;
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/* expect+1: ... 'unsigned long' ... */
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sink = (unsigned long)0 + (long)0;
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/* expect+1: ... 'unsigned long' ... */
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sink = (long)0 + (unsigned long)0;
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/*
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* In traditional C, if one of the operands is unsigned, the result
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* is unsigned as well.
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*/
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/* expect+1: ... 'unsigned long' ... */
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sink = (unsigned)0 + (long)0;
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}
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