Zilog Z80380 Manual do Utilizador descarregar pdf (Página 79)

UM004001-COR1103 4–15

Run Time Environment Library Functions

strcmp FUNCTION

Header file statement: #include <string.h>

Syntax: int strcmp (const char *string1, const char *string2);

The strcmp function compares string1 and string2 lexicographically and returns a value indi-

cating their relationship, as follows:

Value Meaning

< 0 string1 less than string2

= 0 string1 identical to string2

> 0 string1 greater than string2

The strcmp function operates on null-terminated strings. The string arguments to these func-

tions are expected to contain a null character (‘\0’) marking the end of the string.

Note that two strings containing characters located between ‘Z’ and ‘a’ in the ASCII table

(‘[’, ‘\’_’]’, ‘^’, ‘_’, and ‘‘’) compare differently depending on their case. For example, the

two strings, "ABCDE" and "ABCD^", compare one way if the comparison is lowercase

("abcde" > "abcd^") and compare the other way ("ABCDE" < "ABCD^") if it is uppercase.

Return Value

The return values for this functions are described above.

Parameter Description

string1

String to compare

string2

String to compare

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 115 116

Sem comentários

Zilog Z80380 Manual do Utilizador Página 79