Zilog Z8F0130 - Manual (Page 452)

Appendix B. C Standard Library UM013037-1212
428
Zilog Developer Studio II – Z8 Encore!
User Manual
Integer Arithmetic
Miscellaneous
String Handling
The < string.h > header declares several functions useful for manipulating character
arrays and other objects treated as character arrays. Various methods are used for deter-
mining the lengths of arrays, but in all cases a char* or void* argument points to the initial
(lowest addressed) character of the array. If an array is written beyond the end of an object,
the behavior is undefined.
Type
Macro
Functions
The string-handling functions are listed and briefly described in the following sections:
•
Copying – see page 429
•
Concatenation – see page 429
•
Comparison – see page 429
•
Search – see page 429
•
Miscellaneous – see page 430
int abs(int j); Finds absolute value of integer value.
div_t div(int numer, int denom); Computes integer quotient and remainder.
long int labs(long int j); Finds absolute value of long integer value.
ldiv_t ldiv(long int numer, long int denom); Computes long quotient and remainder.
void abort(void) Abnormal program termination.
size_t Unsigned integral type of the result of the sizeof
operator.
NULL Expands to a null pointer constant.