Type checking

Functions
muse_cell	fn_int_p (muse_env *env, void *context, muse_cell args)
	(int? x).
muse_cell	fn_float_p (muse_env *env, void *context, muse_cell args)
	(float? x).
muse_cell	fn_number_p (muse_env *env, void *context, muse_cell args)
	(number? x).
muse_cell	fn_cons_p (muse_env *env, void *context, muse_cell args)
	(cons? x).
muse_cell	fn_fn_p (muse_env *env, void *context, muse_cell args)
	(fn? x).
muse_cell	fn_symbol_p (muse_env *env, void *context, muse_cell args)
	(symbol? x).
muse_cell	fn_string_p (muse_env *env, void *context, muse_cell args)
	(string? x).

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Function Documentation

muse_cell fn_int_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(int? x).

Evaluates to x if x is an integer cell and to () if its not.

muse_cell fn_float_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(float? x).

Evaluates to x if x is a float cell and to () if it is not.

muse_cell fn_number_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(number? x).

Evaluates to x if x is either an integer or a float cell. Otherwise evaluates to ().

muse_cell fn_cons_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(cons? x).

Evaluates to x if x is a cons cell - i.e. a portion of a list or a pair created by cons. If not, it evaluates to ().

See also:

muse_cons

fn_cons

muse_cell fn_fn_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(fn? x).

Evaluates to x if x is a lambda function or a c-native function. Evaluates to () if it is not.

See also:

syntax_lambda

muse_mk_nativefn()

muse_cell fn_symbol_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(symbol? x).

Evaluates to x if x is a symbol (named or anonymous) and evaluates to () if it isn't.

muse_cell fn_string_p	(	muse_env *	env,
		void *	context,
		muse_cell	args
	)

(string? x).

Evaluates to x if x is a text cell and to () if it isn't.

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