bslmf_metaint.h File Reference

#include <bsls_ident.h>
#include <bslscm_version.h>
#include <bslmf_integralconstant.h>
#include <bslmf_tag.h>
#include <bsls_compilerfeatures.h>
#include <bsls_deprecatefeature.h>
#include <bsls_platform.h>

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Macros
#define	BSLMF_METAINT_TO_INT(expr)   BSLMF_TAG_TO_INT((expr).tag())
#define	BSLMF_METAINT_TO_BOOL(expr)   BSLMF_TAG_TO_BOOL((expr).tag())
#define	bslmf_MetaInt   bslmf::MetaInt
	This alias is defined for backward compatibility.

Detailed Description

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Macro Definition Documentation

bslmf_MetaInt

#define bslmf_MetaInt   bslmf::MetaInt

BSLMF_METAINT_TO_BOOL

#define BSLMF_METAINT_TO_BOOL

(

expr

)

BSLMF_TAG_TO_BOOL((expr).tag())

Given an integral value, V, and an expression, expr, of type bslmf::MetaInt<V>, this macro returns a compile-time constant with value, true or false, according to the Boolean value of V. The expression, expr, is not evaluated at run-time.

BSLMF_METAINT_TO_INT

#define BSLMF_METAINT_TO_INT

(

expr

)

BSLMF_TAG_TO_INT((expr).tag())

Instantiating this template produces a distinct type for each non-negative integer value. This template has been deprecated in favor of the standard integral_constant template. This specialization of MetaInt has a VAL of zero and is convertible to and from bsl::false_type. This specialization of MetaInt has a VAL of one and is convertible to and from bsl::true_type. Given an integral value, V, and an expression, expr, of type bslmf::MetaInt<V>, this macro returns a compile-time constant with value, V. The expression, expr, is not evaluated at run-time.