70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
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#ifndef IMG_BASE_H_
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#define IMG_BASE_H_
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/*! \file img_base.h
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\brief basic definitions for the img module
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This header contains the basic module definitions.
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*/
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/// base of the static assertion mechanism
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template<bool> struct NON_TRUE_EXPR_CompileTimeError;
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/// partial instantiation for the static assertion mechanism
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template<> struct NON_TRUE_EXPR_CompileTimeError<true> {};
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/// the static assertion mechanism
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#define STATIC_ASSERT(exp) (NON_TRUE_EXPR_CompileTimeError< (exp) >())
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/// base of the static typecheck mechanism
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template<typename> struct NON_FLOAT_OR_DOUBLE_TYPE_CompileTimeError;
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/// partial instantiation for the static typecheck mechanism
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template<> struct NON_FLOAT_OR_DOUBLE_TYPE_CompileTimeError<float> {};
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/// partial instantiation for the static typecheck mechanism
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template<> struct NON_FLOAT_OR_DOUBLE_TYPE_CompileTimeError<double> {};
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/// the static typecheck mechanism
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#define STATIC_FLOAT_OR_DOUBLE_TYPECHECK(type) (NON_FLOAT_OR_DOUBLE_TYPE_CompileTimeError< type >())
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/// define NULL pointer value
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#ifndef NULL
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#ifdef __cplusplus
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#define NULL 0
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#else
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#define NULL ((void *)0)
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#endif
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#endif
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#include <assert.h>
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#include <math.h>
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#include <exception>
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#include <typeinfo>
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/*! \brief the img module namespace
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this is the main image module namespace.
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*/
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namespace img {
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/*! \brief the basic exception class
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this is the basic image exception class, it simply carries an error string to the console.
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*/
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class ImageException: public std::exception
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{
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public:
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/// the error string
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const char *message;
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/// default constructor
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ImageException():exception(),message("no message"){}
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/*! \brief message carrying constructor
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\param arg_message the error string
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*/
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ImageException(const char *arg_message):exception(),message(arg_message){}
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/// the destructor
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virtual ~ImageException () throw (){}
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};
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} //end namespace img
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#endif /*IMG_BASE_H_*/
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