Some macros and functions used internally by OpenNL. More...

#include "nl.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>

Macros
#define	NL_DEBUG

#define	NL_OS_UNIX
	Defined if compiled on a Unix-like platform.

#define	nl_arg_used(x) (void)x
	Suppresses unsused argument warnings. More...

Memory management
#define	NL_NEW(T) (T*)(calloc(1, sizeof(T)))
	Allocates a new element. More...

#define	NL_NEW_ARRAY(T, NB) (T*)(calloc((size_t)(NB),sizeof(T)))
	Allocates a new array of elements. More...

#define	NL_RENEW_ARRAY(T, x, NB) (T)(realloc(x,(size_t)(NB)sizeof(T)))
	Changes the size of an already allocated array of elements. More...

#define	NL_DELETE(x) free(x); x = NULL
	Deallocates an element. More...

#define	NL_DELETE_ARRAY(x) free(x); x = NULL
	Deallocates an array. More...

#define	NL_CLEAR(T, x) memset(x, 0, sizeof(T))
	Clears an element. More...

#define	NL_CLEAR_ARRAY(T, x, NB) memset(x, 0, (size_t)(NB)*sizeof(T))
	Clears an array of elements. More...

Integer bounds
#define	NL_UINT_MAX 0xffffffff
	Maximum unsigned 32 bits integer.

#define	NL_USHORT_MAX 0xffff
	Maximum unsigned 16 bits integer.

Functions
Error reporting
void	nlError (const char function, const char message)
	Displays an error message. More...

void	nlWarning (const char function, const char message)
	Displays a warning message. More...

Variables
Logging and messages
NLprintfFunc	nl_printf

NLfprintfFunc	nl_fprintf

Assertion checks
#define	NL_NORETURN __attribute__((noreturn))

#define	NL_NORETURN_DECL

#define	nl_assert(x)
	Tests an assertion and aborts the program if the test fails. More...

#define	nl_range_assert(x, min_val, max_val)
	Tests a range assertion and aborts the program if the test fails. More...

#define	nl_assert_not_reached
	Triggers an assertion failure when the execution flow reaches a specific location in the code. More...

#define	nl_debug_assert(x) nl_assert(x)

#define	nl_debug_range_assert(x, min_val, max_val) nl_range_assert(x,min_val,max_val)

#define	nl_parano_assert(x)

#define	nl_parano_range_assert(x, min_val, max_val)

NL_NORETURN_DECL void	nl_assertion_failed (const char cond, const char file, int line) NL_NORETURN
	Displays an error message and aborts the program when an assertion failed. More...

NL_NORETURN_DECL void	nl_range_assertion_failed (double x, double min_val, double max_val, const char *file, int line) NL_NORETURN
	Displays an error message and aborts the program when a range assertion failed. More...

NL_NORETURN_DECL void	nl_should_not_have_reached (const char *file, int line) NL_NORETURN
	Displays an error message and aborts the program when the execution flow reached a point it should not have reached. More...

OS
#define	NL_LINK_NOW 1
	Flag for nlOpenDLL(), resolve all symbols when opening the DLL. More...

#define	NL_LINK_LAZY 2
	Flag for nlOpenDLL(), resolve symbols only when they are called. More...

#define	NL_LINK_GLOBAL 4
	Flag for nlOpenDLL(), add all loaded symbols to global namespace.

#define	NL_LINK_QUIET 8
	Flag for nlOpenDLL(), do not display messages.

#define	NL_LINK_USE_FALLBACK 16
	Flag for nlOpenDLL(), use fallback geogram numerical library if library is not found in the system.

#define	MIN(x, y) (((x) < (y)) ? (x) : (y))

#define	MAX(x, y) (((x) > (y)) ? (x) : (y))

typedef void *	NLdll
	Type for manipulating DLL/shared object/dylib handles.

NLdouble	nlCurrentTime (void)
	Gets the current time in seconds. More...

NLuint	nlGetNumCores (void)
	Gets the number of cores. More...

NLuint	nlGetNumThreads (void)
	Gets the number of threads. More...

void	nlSetNumThreads (NLuint nb_threads)
	Sets the number of threads. More...

NLdll	nlOpenDLL (const char *filename, NLenum flags)
	Dynamically links a DLL/shared object/dylib to the current process. More...

void	nlCloseDLL (NLdll handle)
	Closes a DLL/shared object/dylib. More...

NLfunc	nlFindFunction (NLdll handle, const char *funcname)
	Finds a function in a DLL/shared object/dylib. More...

Detailed Description

Some macros and functions used internally by OpenNL.

Definition in file nl_private.h.

Macro Definition Documentation

◆ nl_arg_used

#define nl_arg_used ( x ) (void)x

Suppresses unsused argument warnings.

Some callbacks do not necessary use all their arguments.

Parameters

[in] x the argument to be tagged as used

Definition at line 86 of file nl_private.h.

◆ nl_assert

#define nl_assert ( x )

Value:

        {                                          \
        if(!(x)) {                                              \
            nl_assertion_failed(#x,__FILE__, __LINE__) ;        \
        }                                                       \
    }

Tests an assertion and aborts the program if the test fails.

Parameters

[in] x the condition to be tested

Definition at line 147 of file nl_private.h.

◆ nl_assert_not_reached

#define nl_assert_not_reached

Value:

        {                                 \
        nl_should_not_have_reached(__FILE__, __LINE__) ;        \
    }

Triggers an assertion failure when the execution flow reaches a specific location in the code.

Definition at line 171 of file nl_private.h.

◆ NL_CLEAR

#define NL_CLEAR	(	T,
		x
	)	memset(x, 0, sizeof(T))

Clears an element.

Parameters

[in]	T	type of the element to be cleared
[in,out]	x	a pointer to the element

Definition at line 365 of file nl_private.h.

◆ NL_CLEAR_ARRAY

#define NL_CLEAR_ARRAY	(	T,
		x,
		NB
	)	memset(x, 0, (size_t)(NB)*sizeof(T))

Clears an array of elements.

Parameters

[in]	T	type of the element to be cleared
[in,out]	x	a pointer to the element
[in]	NB	number of elements

Definition at line 373 of file nl_private.h.

◆ NL_DELETE

#define NL_DELETE ( x ) free(x); x = NULL

Deallocates an element.

Parameters

[in,out] x a pointer to the element to be deallocated

Definition at line 351 of file nl_private.h.

◆ NL_DELETE_ARRAY

#define NL_DELETE_ARRAY ( x ) free(x); x = NULL

Deallocates an array.

Parameters

[in,out] x a pointer to the first element of the array to be deallocated

Definition at line 358 of file nl_private.h.

◆ NL_LINK_LAZY

#define NL_LINK_LAZY 2

Flag for nlOpenDLL(), resolve symbols only when they are called.

See also: nlOpenDLL()

Definition at line 261 of file nl_private.h.

◆ NL_LINK_NOW

#define NL_LINK_NOW 1

Flag for nlOpenDLL(), resolve all symbols when opening the DLL.

See also: nlOpenDLL()

Definition at line 255 of file nl_private.h.

◆ NL_NEW

#define NL_NEW ( T ) (T*)(calloc(1, sizeof(T)))

Allocates a new element.

Memory is zeroed after allocation

Parameters

[in] T type of the element to be allocated

Definition at line 328 of file nl_private.h.

◆ NL_NEW_ARRAY

#define NL_NEW_ARRAY	(	T,
		NB
	)	(T*)(calloc((size_t)(NB),sizeof(T)))

Allocates a new array of elements.

Memory is zeroed after allocation

Parameters

[in]	T	type of the elements
[in]	NB	number of elements

Definition at line 336 of file nl_private.h.

◆ nl_range_assert

#define nl_range_assert	(	x,
		min_val,
		max_val
	)

Value:

        {                            \
        if(((int)(x) < (int)(min_val)) || ((int)(x) > (int)(max_val))) { \
            nl_range_assertion_failed(x, min_val, max_val,              \
                                      __FILE__, __LINE__                \
                                     ) ;                                \
        }                                                               \
    }

Tests a range assertion and aborts the program if the test fails.

Parameters

[in]	x	the variable to be tested
[in]	min_val	the minimum admissible value for the variable
[in]	max_val	the maximum admissible value for the variable

Definition at line 159 of file nl_private.h.

◆ NL_RENEW_ARRAY

#define NL_RENEW_ARRAY	(	T,
		x,
		NB
	)	(T)(realloc(x,(size_t)(NB)sizeof(T)))

Changes the size of an already allocated array of elements.

Memory is zeroed after allocation

Parameters

[in]	T	type of the elements
[in,out]	x	a pointer to the array to be resized
[in]	NB	number of elements

Definition at line 345 of file nl_private.h.

Function Documentation

◆ nl_assertion_failed()

NL_NORETURN_DECL void nl_assertion_failed	(	const char *	cond,
		const char *	file,
		int	line
	)

Displays an error message and aborts the program when an assertion failed.

Called by nl_assert() whenever the assertion failed

Parameters

[in]	cond	the textual representation of the condition
[in]	file	the source filename
[in]	line	the line number

◆ nl_range_assertion_failed()

NL_NORETURN_DECL void nl_range_assertion_failed	(	double	x,
		double	min_val,
		double	max_val,
		const char *	file,
		int	line
	)

Displays an error message and aborts the program when a range assertion failed.

Called by nl_range_assert() whenever the assertion failed

Parameters

[in]	x	the variable
[in]	min_val	the minimum value
[in]	max_val	the maximum value
[in]	file	the source filename
[in]	line	the line number

◆ nl_should_not_have_reached()

NL_NORETURN_DECL void nl_should_not_have_reached	(	const char *	file,
		int	line
	)

Displays an error message and aborts the program when the execution flow reached a point it should not have reached.

called by nl_assert_not_reached

Parameters

[in]	file	the source filename
[in]	line	the line number

◆ nlCloseDLL()

void nlCloseDLL ( NLdll handle )

Closes a DLL/shared object/dylib.

Parameters

[in] handle a handle to a DLL/shared object/dylib that was previously obtained by nlOpenDLL()

◆ nlCurrentTime()

NLdouble nlCurrentTime ( void )

Gets the current time in seconds.

Returns: the current time in seconds (starting from a given reference time)

◆ nlError()

void nlError	(	const char *	function,
		const char *	message
	)

Displays an error message.

Parameters

[in]	function	name of the function that triggered the error
[in]	message	error message

◆ nlFindFunction()

NLfunc nlFindFunction	(	NLdll	handle,
		const char *	funcname
	)

Finds a function in a DLL/shared object/dylib.

Parameters

[in]	handle	a handle to a DLL/shared object/dylib that was previously obtained by nlOpenDLL()
[in]	funcname	the name of the function

Returns: a pointer to the function or NULL if no such function was found

◆ nlGetNumCores()

NLuint nlGetNumCores ( void )

Gets the number of cores.

Returns: the number of cores obtained from OpenMP if supported, or 1

◆ nlGetNumThreads()

NLuint nlGetNumThreads ( void )

Gets the number of threads.

Returns: the number of threads used by OpenMP if supported, or 1

◆ nlOpenDLL()

NLdll nlOpenDLL	(	const char *	filename,
		NLenum	flags
	)

Dynamically links a DLL/shared object/dylib to the current process.

Parameters

[in]	filename	the file name fo the DLL/shared object/dylib.
[in]	flags	an or-combination of NL_LINK_NOW, NL_LINK_LAZY, NL_LINK_GLOBAL, NL_LINK_QUIET.

Returns: a handle to the DLL/shared object/dylib or NULL if it could not be found.

◆ nlSetNumThreads()

void nlSetNumThreads ( NLuint nb_threads )

Sets the number of threads.

Parameters

[in] nb_threads number of threads to be used by OpenMP, ignored if OpenMP is not supported.

◆ nlWarning()

void nlWarning	(	const char *	function,
		const char *	message
	)

Displays a warning message.

Parameters

[in]	function	name of the function that triggered the error
[in]	message	warning message

Macros

Functions

Variables

Assertion checks

OS

Detailed Description

Macro Definition Documentation

◆ nl_arg_used

◆ nl_assert

◆ nl_assert_not_reached

◆ NL_CLEAR

◆ NL_CLEAR_ARRAY

◆ NL_DELETE

◆ NL_DELETE_ARRAY

◆ NL_LINK_LAZY

◆ NL_LINK_NOW

◆ NL_NEW

◆ NL_NEW_ARRAY

◆ nl_range_assert

◆ NL_RENEW_ARRAY

Function Documentation

◆ nl_assertion_failed()

◆ nl_range_assertion_failed()

◆ nl_should_not_have_reached()

◆ nlCloseDLL()

◆ nlCurrentTime()

◆ nlError()

◆ nlFindFunction()

◆ nlGetNumCores()

◆ nlGetNumThreads()

◆ nlOpenDLL()

◆ nlSetNumThreads()

◆ nlWarning()