Standard C function headers. More...

Data Structures
struct	tm
	Documented at http://www.cplusplus.com/reference/ctime/tm/. Values outside of valid ranges can be used to calculate a new date/time using mktime. E.g. tm_mday = 0 means last day of previous month. More...

struct	_timeb
	Used by ftime. Defined as _timeb (instead of timeb) just as in the on-line Help. More...

struct	lconv
	Returned by localeconv. Documented at http://www.cplusplus.com/reference/clocale/lconv/. More...

Macros
#define	strcat(to, from) 0_DO_NOT_USE_strcat_THERE_IS_ALWAYS_A_BETTER_SOLUTION
	Force a compile time error when strcat() is used. Because the use of strcat() is a very strong indicator for poorly written code being compiled – there is always a better solution! More...

#define	strcpy(dest, source) 0_DO_NOT_USE_strcpy_DUPLICATION_IS_NOT_REQUIRED
	Force a compile time error when strcpy() is used. The use of strcpy is banned because in practice strcpy is only used by novice coders doing unnecessary duplicating. (Typically when trying to avoid using pointers when actually using pointers.) Evaluate your coding solution and avoid duplication. If you must, use the safer strncpy or snprintf. More...

#define	FILENAME_MAX 1024

#define	L_tmpnam FILENAME_MAX

#define	SEEK_SET 0
	set file offset to offset More...

#define	SEEK_CUR 1
	set file offset to current plus offset More...

#define	SEEK_END 2
	set file offset to EOF plus offset More...

#define	_IOFBF 0
	setvbuf should set fully buffered More...

#define	_IOLBF 1
	setvbuf should set line buffered More...

#define	_IONBF 2
	setvbuf should set unbuffered More...

#define	EOF (-1)
	the End-Of-File constant More...

#define	LC_ALL 0

#define	LC_COLLATE 1

#define	LC_CTYPE 2

#define	LC_MONETARY 3

#define	LC_NUMERIC 4

#define	LC_TIME 5

#define	LC_MESSAGES 6

Typedefs
typedef long	time_t
	Type time_t can hold a Unix timestamp. More...

Functions
int	snprintf (char buffer, size_t n, const char format_string,...)
	Documented at http://www.cplusplus.com/reference/cstdio/snprintf/. This function was introduced by the latest revision of the C++ standard (2011). Older compilers may not support it. More...

int	sprintf (char buffer, const char format_string,...)
	Documented at http://www.cplusplus.com/reference/cstdio/sprintf/. You should prefer snprintf over sprintf. More...

int	sscanf (const char buffer, const char format_string,...)
	Documented at http://www.cplusplus.com/reference/cstdio/sscanf/. More...

char *	strchr (const char *string, int c)
	Documented at http://www.cplusplus.com/reference/cstring/strchr/. More...

int	strcmp (const char string1, const char string2)
	Documented at http://www.cplusplus.com/reference/cstring/strcmp/. More...

char *	strdup (const char *string)
	Documented at http://pubs.opengroup.org/onlinepubs/007904975/functions/strdup.html . More...

int	stricmp (const char string1, const char string2)
	Documented at http://pic.dhe.ibm.com/infocenter/iseries/v7r1m0/topic/rtref/stricmp.htm . More...

size_t	strlen (const char *string)
	Documented at http://www.cplusplus.com/reference/cstring/strlen/. More...

char *	strlwr (char *string)
	Documented at http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_lib_ref/s/strlwr.html . More...

char *	strncat (char to_string, const char from_string, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/strncat/. More...

int	strncmp (const char string1, const char string2, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/strncmp/. More...

int	strnicmp (const char string1, const char string2, size_t num)
	Documented at http://pic.dhe.ibm.com/infocenter/iseries/v7r1m0/topic/rtref/strnicmp.htm. More...

char *	strncpy (char destination, const char source, size_t num)
	Documented at http://www.cplusplus.com/reference/cstring/strncpy/. More...

char *	strrchr (const char *string, int c)
	Documented at http://www.cplusplus.com/reference/cstring/strrchr/. More...

char *	strset (char *string1, int character)
	Documented at http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_lib_ref/s/strset.html . More...

size_t *	strspn (const char string, const char skipset)
	Documented at http://www.cplusplus.com/reference/cstring/strspn/. More...

char *	strstr (const char string1, const char string2)
	Documented at http://www.cplusplus.com/reference/cstring/strstr/. More...

char *	strtok (char string, const char delimiters)
	Documented at http://www.cplusplus.com/reference/cstring/strtok/. More...

char *	strupr (char *string)
	Documented at http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_lib_ref/s/strupr.html . More...

double	atof (const char *string)
	Documented at http://www.cplusplus.com/reference/cstdlib/atof/. More...

int	atoi (const char *string)
	Documented at http://www.cplusplus.com/reference/cstdlib/atoi/. More...

long	atol (const char *string)
	Documented at http://www.cplusplus.com/reference/cstdlib/atol/. More...

int	itoa (int value, char *str, int radix)
	Documented at http://www.cplusplus.com/reference/cstdlib/itoa/. More...

long	strtol (const char string, char *endptr, int radix)
	Documented at http://www.cplusplus.com/reference/cstdlib/strtol/. More...

unsigned long int	strtoul (const char str, char *endptr, int base)
	Documented at http://www.cplusplus.com/reference/cstdlib/strtoul/. More...

double	strtod (const char str, char *endptr)
	Documented at http://www.cplusplus.com/reference/cstdlib/strtod/. More...

int	isalnum (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isalnum/. More...

int	isalpha (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isalpha/. More...

int	iscntrl (int character)
	Documented at http://www.cplusplus.com/reference/cctype/iscntrl/. More...

int	isdigit (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isdigit/. More...

int	isgraph (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isgraph/. More...

int	islower (int character)
	Documented at http://www.cplusplus.com/reference/cctype/islower/. More...

int	isprint (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isprint/. More...

int	ispunct (int character)
	Documented at http://www.cplusplus.com/reference/cctype/ispunct/. More...

int	isspace (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isspace/. More...

int	isupper (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isupper/. More...

int	isxdigit (int character)
	Documented at http://www.cplusplus.com/reference/cctype/isxdigit/. More...

int	tolower (int character)
	Documented at http://www.cplusplus.com/reference/cctype/tolower/. More...

int	toupper (int character)
	Documented at http://www.cplusplus.com/reference/cctype/toupper/. More...

void *	memchr (const void *s, int c, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/memchr/. More...

int	memcmp (const void s1, const void s2, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/memcmp/. More...

void *	memcpy (void dest, const void src, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/memcpy/. More...

void *	memmove (void dest, const void src, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/memmove/. More...

void *	memset (void *buffer, int c, size_t n)
	Documented at http://www.cplusplus.com/reference/cstring/memset/. More...

void *	calloc (size_t num_elems, size_t elem_size)
	Documented at http://www.cplusplus.com/reference/cstdlib/calloc/. More...

void	free (void *mem_address)
	Documented at http://www.cplusplus.com/reference/cstdlib/free/. More...

void *	malloc (size_t num_bytes)
	Documented at http://www.cplusplus.com/reference/cstdlib/malloc/. More...

void *	realloc (void *mem_address, size_t size)
	Documented at http://www.cplusplus.com/reference/cstdlib/realloc/. More...

time_t	time (time_t *timeptr)
	Documented at http://www.cplusplus.com/reference/ctime/time/. More...

char *	ctime (const time_t *calTime)
	Documented at http://www.cplusplus.com/reference/ctime/ctime/. More...

struct tm *	gmtime (const time_t *calTime)
	Documented at http://www.cplusplus.com/reference/ctime/gmtime/. More...

char *	asctime (const struct tm *tmTime)
	Documented at http://www.cplusplus.com/reference/ctime/asctime/. More...

size_t *	strftime (char string, size_t maxlen, const char format, const struct tm *timestruct)
	Documented at http://www.cplusplus.com/reference/ctime/strftime/. More...

time_t	mktime (struct tm *timeptr)
	Documented at http://www.cplusplus.com/reference/ctime/mktime/. More...

struct tm *	localtime (const time_t *timer)
	Documented at http://www.cplusplus.com/reference/ctime/localtime/. More...

void	tzset (void)
	Documented at http://www.cplusplus.com/reference/ctime/tzset/. More...

void	ftime (struct _timeb *time)
	Documented at http://www.qnx.com/developers/docs/6.5.0/topic/com.qnx.doc.neutrino_lib_ref/f/ftime.html . More...

int	fclose (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fclose/. More...

int	feof (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/feof/. More...

int	ferror (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/ferror/. More...

int	fgetc (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fgetc/. More...

char *	fgets (char *string, int maxchar, long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fgets/. More...

int	fputs (const char *str, long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fputs/. More...

long	fopen (const char filename, const char access_mode)
	Documented at http://www.cplusplus.com/reference/cstdio/fopen/. More...

int	fprintf (long file_pointer, const char *format_string,...)
	Documented at http://www.cplusplus.com/reference/cstdio/fprintf/. More...

int	fputc (int c, long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fputc/. More...

size_t	fread (void *buffer, size_t size, size_t count, long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fread/. More...

int	fscanf (long file_pointer, const char *format_string,...)
	Documented at http://www.cplusplus.com/reference/cstdio/fscanf/. More...

int	fseek (long file_pointer, long offset, int origin)
	Documented at http://www.cplusplus.com/reference/cstdio/fseek/. More...

long	ftell (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/ftell/. More...

size_t	fwrite (const void *buffer, size_t size, size_t count, long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/fwrite/. More...

void	rewind (long file_pointer)
	Documented at http://www.cplusplus.com/reference/cstdio/rewind/. More...

long	tmpfile (void)
	Documented at http://www.cplusplus.com/reference/cstdio/tmpfile/. More...

char *	tmpnam (char *str)
	Documented at http://www.cplusplus.com/reference/cstdio/tmpnam/. More...

int	setvbuf (long file_pointer, char *buffer, int mode, size_t size)
	Documented at http://www.cplusplus.com/reference/cstdio/setvbuf/. More...

int	getw (long file_pointer)
	Documented at http://man7.org/linux/man-pages/man3/getw.3.html . More...

int	pclose (long file_pointer)
	Documented at http://man7.org/linux/man-pages/man3/pclose.3.html . More...

long	popen (const char command, const char access_mode)
	Documented at http://man7.org/linux/man-pages/man3/popen.3.html . More...

int	putw (int word, long file_pointer)
	Documented at http://man7.org/linux/man-pages/man3/putw.3.html . More...

char *	getenv (const char *varname)
	Documented at http://www.cplusplus.com/reference/cstdlib/getenv/. More...

int	putenv (const char *envstring)
	Documented at http://www.cplusplus.com/reference/cstdlib/putenv/. More...

int	system (const char *string)
	Documented at http://www.cplusplus.com/reference/cstdlib/system/. The popen function is more useful in LR scripts. More...

int	chdir (const char *path)
	Documented at http://man7.org/linux/man-pages/man2/chdir.2.html . More...

int	chdrive (int drive)
	See on-line help. More...

char *	getcwd (char *path, int numchars)
	See on-line help. More...

int	getdrive (void)
	See on-line help. More...

int	remove (const char *path)
	Documented at http://www.cplusplus.com/reference/cstdio/remove/. More...

int	rename (const char oldname, const char newname)
	Documented at http://www.cplusplus.com/reference/cstdio/rename/. More...

int	rmdir (const char *path)
	See on-line help. More...

char *	setlocale (int category, const char *locale)
	Documented at http://www.cplusplus.com/reference/clocale/setlocale/. More...

struct lconv *	localeconv (void)
	Documented at http://www.cplusplus.com/reference/clocale/localeconv/. More...

int	abs (int n)
	Documented at http://www.cplusplus.com/reference/cstdlib/abs/. More...

double	fabs (double x)
	Documented at http://www.cplusplus.com/reference/cmath/fabs/. More...

double	ceil (double x)
	Documented at http://www.cplusplus.com/reference/cmath/ceil/. More...

double	floor (double x)
	Documented at http://www.cplusplus.com/reference/cmath/floor/. More...

double	fmod (double numerator, double denominator)
	Documented at http://www.cplusplus.com/reference/cmath/fmod/. More...

double	modf (double x, double *intpart)
	Documented at http://www.cplusplus.com/reference/cmath/modf/. More...

double	exp (double x)
	Documented at http://www.cplusplus.com/reference/cmath/exp/. More...

double	sqrt (double x)
	Documented at http://www.cplusplus.com/reference/cmath/sqrt/. More...

double	pow (double base, double exponent)
	Documented at http://www.cplusplus.com/reference/cmath/pow/. More...

double	log (double x)
	Documented at http://www.cplusplus.com/reference/cmath/log/. More...

double	log10 (double x)
	Documented at http://www.cplusplus.com/reference/cmath/log10/. More...

double	log2 (double x)
	Documented at http://www.cplusplus.com/reference/cmath/log2/. More...

double	sin (double x)
	Documented at http://www.cplusplus.com/reference/cmath/sin/. More...

double	cos (double x)
	Documented at http://www.cplusplus.com/reference/cmath/cos/. More...

int	rand (void)
	Documented at http://www.cplusplus.com/reference/cstdlib/rand/. More...

int	srand (unsigned int seed)
	Documented at http://www.cplusplus.com/reference/cstdlib/srand/. More...

void	sleep (DWORD dwMilliseconds)
	Windows API uninterruptable sleep in LR, better to use lr_force_think_time() or lr_usleep() instead. More...

Detailed Description

Standard C function headers.

This header file contains the most used 'standard C functions' in Vugen scripts.
By declaring these functions properly the compiler can check if these functions are used correctly and apply implicit conversions when necessary.
This header file 'de-strips' the compiler in Vugen.
It contains all functions mentioned in the HP LoadRunner Online Function Reference.

Note: Sites like http://www.cplusplus.com/reference/clibrary/ explain the standard C functions better than the HP LoadRunner Online Function Reference and more.

Usage: Automatically included as part of y-lib. To use this stand-alone add vugen.h to the script and add the following to globals.h or vuser_init.c:

#include "vugen.h"

Or: add to include-directory and add the #include to lhrun.h on all Vugen machines and load generators.
Initial version 2012-03-27, last update 2014-01-09

Author: A.U. Luyer

Warning: lrun.h contains:
#define size_t int
causing size_t to be defined as signed integer, which is incorrect.

Definition in file vugen.h.

Function Documentation

int rand ( void )

Documented at http://www.cplusplus.com/reference/cstdlib/rand/.

void sleep ( DWORD dwMilliseconds )

Windows API uninterruptable sleep in LR, better to use lr_force_think_time() or lr_usleep() instead.

int srand ( unsigned int seed )

Documented at http://www.cplusplus.com/reference/cstdlib/srand/.

Data Structures

Macros

Typedefs

Functions

Detailed Description

Function Documentation