Translations:Development/Tutorials/Common Programming Mistakes/15/en: Difference between revisions

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Message definition (Development/Tutorials/Common Programming Mistakes)
In pointer context, the integer constant zero means "null pointer" - irrespective of the actual binary representation of a null pointer. Note, however, that if you want to pass a null pointer constant to a function in a variable argument list, you *must* explicitly cast it to a pointer - the compiler assumes integer context by default, which might or might not match the binary representation of a pointer.

In pointer context, the integer constant zero means "null pointer" - irrespective of the actual binary representation of a null pointer. Note, however, that if you want to pass a null pointer constant to a function in a variable argument list, you *must* explicitly cast it to a pointer - the compiler assumes integer context by default, which might or might not match the binary representation of a pointer.

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