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(build_c_cast): Don't warn about size change between

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pointer and integer if the value is constant.

From-SVN: r2645
This commit is contained in:
Richard Stallman 1992-10-29 06:06:53 +00:00
parent d92761c015
commit c9b7f31c92
1 changed files with 7 additions and 2 deletions
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9
gcc/c-typeck.c
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@ -3752,15 +3752,20 @@ build_c_cast (type, expr)
if (TREE_CODE (type) == INTEGER_TYPE if (TREE_CODE (type) == INTEGER_TYPE
&& TREE_CODE (otype) == POINTER_TYPE && TREE_CODE (otype) == POINTER_TYPE
&& TYPE_PRECISION (type) != TYPE_PRECISION (otype)) && TYPE_PRECISION (type) != TYPE_PRECISION (otype)
&& !TREE_CONSTANT (value))
warning ("cast from pointer to integer of different size"); warning ("cast from pointer to integer of different size");
if (TREE_CODE (type) == POINTER_TYPE if (TREE_CODE (type) == POINTER_TYPE
&& TREE_CODE (otype) == INTEGER_TYPE && TREE_CODE (otype) == INTEGER_TYPE
&& TYPE_PRECISION (type) != TYPE_PRECISION (otype) && TYPE_PRECISION (type) != TYPE_PRECISION (otype)
#if 0
/* Don't warn about converting 0 to pointer, /* Don't warn about converting 0 to pointer,
provided the 0 was explicit--not cast or made by folding. */ provided the 0 was explicit--not cast or made by folding. */
&& !(TREE_CODE (value) == INTEGER_CST && integer_zerop (value))) && !(TREE_CODE (value) == INTEGER_CST && integer_zerop (value))
#endif
/* Don't warn about converting any constant. */
&& !TREE_CONSTANT (value))
warning ("cast to pointer from integer of different size"); warning ("cast to pointer from integer of different size");
value = convert (type, value); value = convert (type, value);