Zilog ZUSBOPTS Manual do Utilizador descarregar pdf (Página 432)

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101

Standard Header Files UM017105-0511

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Zilog Developer Studio II – ZNEO™

User Manual

The following additional string conversion functions are provided:

Pseudorandom Sequence Generation

Memory Management

The order and contiguity of storage allocated by successive calls to the

calloc, malloc,

and

realloc functions are unspecified. The pointer returned if the allocation succeeds is

suitably aligned so that it can be assigned to a pointer to any type of object and then used

to access such an object in the space allocated (until the space is explicitly freed or reallo-

cated).

Searching and Sorting Utilities

double strtod(const char *nptr, char **endptr); Converts string pointed to by nptr to

a double.

long int strtol(const char *nptr, char **endptr, int

base);

Converts string to a long decimal

integer that is equal to a number with

the specified radix.

float atoff(const char *nptr); Converts string to float.

float strtof(const char *nptr, char **endptr); Converts string pointed to by nptr to

a double.

int rand(void) Gets a pseudorandom number.

void srand(unsigned int seed); Initializes pseudorandom series.

void *calloc(size_t nmemb, size_t size); Allocates storage for array.

void free(void *ptr); Frees a block allocated with calloc, malloc, or

realloc.

void *malloc(size_t size); Allocates a block.

void *realloc(void *ptr, size_t size); Reallocates a block.

void *bsearch(void *key, void *base, size_t nmemb, 

size_t size, int (*compar)(void *, void *));

Performs binary search.

void qsort(void *base, size_t nmemb, size_t size, int

(*compar)(void *, void *));

Performs a quick sort.

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