в 14:20, 25 мая 2010

2010-05-25T14:20:56Z

Admin: 1 версия: Импорт контента...

2010-05-25T10:22:16Z

1 версия: Импорт контента...

Новая страница

==Add null terminator to string end==

<source lang="cpp">
#include <stdio.h>
int main(void)
{
char s[256], *p;
p = s;
while((*p++ = getchar())!= "\n") ;
*p = "\0"; /* add null terminator */
printf(s);
return 0;
}

</source>

==Check string length and set string end==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
int main(void)
{
char str[10];
int i;
printf("Enter a string: ");
fgets(str, 10, stdin);
/* remove newline, if present */
i = strlen(str) - 1;

if(str[i] =="\n")
str[i] = "\0";
printf("This is your string: %s", str);
return 0;
}

</source>

==Computes the length of a line==

<source lang="cpp">
#include <string.h>
#include <stdio.h>
int main()
{
char line[100];
printf("Enter a line: ");
fgets(line, sizeof(line), stdin);
printf("The length of the line is: %d\n", strlen(line));
return (0);
}

</source>

== Get length of substring composed of given characters==

<source lang="cpp">
#include <string.h>
#include <stdio.h>
int main(void)
{
int len;
len = strspn("this is a test", "siht ");
printf("%d", len);
return 0;
}

</source>

== Get length of substring composed of given characters: how to use strspn==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
int main ()
{
int i;
char key[] = "890th";
char str[] = "1234567890";
i = strspn (key, str);

printf ("Length of initial number is %d\n", i);
return 0;
}

</source>

==Get the string length==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
int main(void)
{
char str[80];
gets(str);
printf("Length is %d", strlen(str));
return 0;
}

</source>

==Lengths of strings==

<source lang="cpp">
#include <stdio.h>
void main() {
char str1[40] = "To be or not to be";
char str2[40] = ",that is the question. ";
int count = 0;
while (str1[count] != "\0")
count++;
printf("\nThe length of the string \"%s\" is %d characters.", str1, count);
count = 0;
while (str2[count] != "\0")
count++;
printf("\nThe length of the string \"%s\" is %d characters.\n", str2, count);
}

</source>

==print the string forward and backwards==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
char *p = "hello world";
int main(void)
{
register int t;
printf(p);

for( t = strlen( p ) - 1; t > -1; t--)
printf("%c", p[ t ]);
return 0;
}

</source>

== Return string length: how to use strlen==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
int main ()
{
char str[256];
printf ("Enter a sentence: ");
gets (str);
printf ( "%s is %u characters long\n", str, strlen( str ) );
return 0;
}

</source>

==String length==

<source lang="cpp">
#include <stdio.h>
int length(char string[]) {
int index;
for (index = 0; string[index] != "\0"; ++index)
continue;
return (index);
}
int main()
{
char line[100];
while (1) {
printf("Enter line:");
fgets(line, sizeof(line), stdin);
printf("Length (including newline) is: %d\n", length(line));
}
}

</source>

==String operator: get length, compare and find a char==

<source lang="cpp">
#include <stdio.h>
#include <string.h>
int main(void)
{
char s1[80], s2[80];
gets(s1);
gets(s2);
printf("lengths: %d %d\n", strlen(s1), strlen(s2));
if(!strcmp(s1, s2))
printf("The strings are equal\n");
strcat(s1, s2);
printf("%s\n", s1);
strcpy(s1, "This is a test.\n");
printf(s1);

if(strchr("hello", "e"))
printf("e is in hello\n");

if(strstr("hi there", "hi"))
printf("found hi");
return 0;
}

</source>

← Предыдущая	Версия 14:20, 25 мая 2010
(нет различий)

C/String/String Length - История изменений

в 14:20, 25 мая 2010

Admin: 1 версия: Импорт контента...