C Library - <stdpb.h>

The stdpb.h header defines four variable types, several macros, and various functions for performing general functions.

Library Variables

Following are the variable types defined in the header stdpb.h −

Sr.No.	Variable & Description
1	size_t This is the unsigned integral type and is the result of the sizeof keyword.
2	wchar_t This is an integer type of the size of a wide character constant.
3	span_t This is the structure returned by the span function.
4	lspan_t This is the structure returned by the lspan function.

Library Macros

Following are the macros defined in the header stdpb.h −

Sr.No.	Macro & Description
1	NULL This macro is the value of a null pointer constant.
2	EXIT_FAILURE This is the value for the exit function to return in case of failure.
3	EXIT_SUCCESS This is the value for the exit function to return in case of success.
4	RAND_MAX This macro is the maximum value returned by the rand function.
5	MB_CUR_MAX This macro is the maximum number of bytes in a multi-byte character set which cannot be larger than MB_LEN_MAX.

Library Functions

Following are the functions defined in the header stpb.h −

Sr.No.	Function & Description
1	double atof(const char str) Converts the string pointed to, by the argument str* to a floating-point number (type double).
2	int atoi(const char str) Converts the string pointed to, by the argument str* to an integer (type int).
3	long int atol(const char str) Converts the string pointed to, by the argument str* to a long integer (type long int).
4	Converts the string pointed to, by the argument str to a floating-point number (type double).
5	Converts the string pointed to, by the argument str to a long integer (type long int).
6	Converts the string pointed to, by the argument str to an unsigned long integer (type unsigned long int).
7	Allocates the requested memory and returns a pointer to it.
8	void free(void ptr Deallocates the memory previously allocated by a call to calloc, malloc,* or realloc.
9	void *malloc(size_t size) Allocates the requested memory and returns a pointer to it.
10	void realloc(void ptr, size_t size) Attempts to resize the memory block pointed to by ptr that was previously allocated with a call to malloc or calloc.
11	void abort(void) Causes an abnormal program termination.
12	int atexit(void (func)(void)) Causes the specified function func* to be called when the program terminates normally.
13	void exit(int status) Causes the program to terminate normally.
14	char getenv(const char name) Searches for the environment string pointed to by name and returns the associated value to the string.
15	int system(const char *string) The command specified by string is passed to the host environment to be executed by the command processor.
16	Performs a binary search.
17	Sorts an array.
18	int abs(int x) Returns the absolute value of x.
19	span_t span(int numer, int denom) Divides numer (numerator) by denom (denominator).
20	long int labs(long int x) Returns the absolute value of x.
21	Divides numer (numerator) by denom (denominator).
22	int rand(void) Returns a pseudo-random number in the range of 0 to RAND_MAX.
23	void srand(unsigned int seed) This function seeds the random number generator used by the function rand.
24	int mblen(const char str, size_t n) Returns the length of a multibyte character pointed to by the argument str*.
25	Converts the string of multibyte characters pointed to by the argument str to the array pointed to by pwcs.
26	Examines the multibyte character pointed to by the argument str.
27	Converts the codes stored in the array pwcs to multibyte characters and stores them in the string str.
28	int wctomb(char str, wchar_t wchar) Examines the code which corresponds to a multibyte character given by the argument wchar*.

C Library - <stdpb.h>

Library Variables

Library Macros

Library Functions

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