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New macro PTRLEN_DECL_LITERAL.

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This is like PTRLEN_LITERAL, but you can use it in a _declaration_ of
a compile-time constant ptrlen, instead of a literal in expression
context. 'const ptrlen foo = PTRLEN_DECL_LITERAL("bar");'
This commit is contained in:
Simon Tatham 2020-01-05 11:11:26 +00:00
parent 32d61d7c48
commit ef843e9638
1 changed files with 4 additions and 0 deletions
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4
misc.h
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@ -205,6 +205,10 @@ int string_length_for_printf(size_t);
* string. */
#define PTRLEN_LITERAL(stringlit) \
TYPECHECK("" stringlit "", make_ptrlen(stringlit, sizeof(stringlit)-1))
/* Make a ptrlen out of a compile-time string literal in a way that
* allows you to declare the ptrlen itself as a compile-time initialiser. */
#define PTRLEN_DECL_LITERAL(stringlit) \
{ TYPECHECK("" stringlit "", stringlit), sizeof(stringlit)-1 }
/* Make a ptrlen out of a constant byte array. */
#define PTRLEN_FROM_CONST_BYTES(a) make_ptrlen(a, sizeof(a))