sscanf
Example/* SSCANF.C: This program uses sscanf to read data items
* from a string named tokenstring, then displays them.
*/#include <stdio.h>void main( void )
{
char tokenstring[] = "15 12 14...";
char s[81];
char c;
int i;
float fp; /* Input various data from tokenstring: */
sscanf( tokenstring, "%s", s );
sscanf( tokenstring, "%c", &c );
sscanf( tokenstring, "%d", &i );
sscanf( tokenstring, "%f", &fp ); /* Output the data read */
printf( "String = %s\n", s );
printf( "Character = %c\n", c );
printf( "Integer: = %d\n", i );
printf( "Real: = %f\n", fp );
}
OutputString = 15
Character = 1
Integer: = 15
Real: = 15.000000
Example/* SSCANF.C: This program uses sscanf to read data items
* from a string named tokenstring, then displays them.
*/#include <stdio.h>void main( void )
{
char tokenstring[] = "15 12 14...";
char s[81];
char c;
int i;
float fp; /* Input various data from tokenstring: */
sscanf( tokenstring, "%s", s );
sscanf( tokenstring, "%c", &c );
sscanf( tokenstring, "%d", &i );
sscanf( tokenstring, "%f", &fp ); /* Output the data read */
printf( "String = %s\n", s );
printf( "Character = %c\n", c );
printf( "Integer: = %d\n", i );
printf( "Real: = %f\n", fp );
}
OutputString = 15
Character = 1
Integer: = 15
Real: = 15.000000
Example/* ATOF.C: This program shows how numbers stored
* as strings can be converted to numeric values
* using the atof, atoi, and atol functions.
*/#include <stdlib.h>
#include <stdio.h>void main( void )
{
char *s; double x; int i; long l; s = " -2309.12E-15"; /* Test of atof */
x = atof( s );
printf( "atof test: ASCII string: %s\tfloat: %e\n", s, x ); s = "7.8912654773d210"; /* Test of atof */
x = atof( s );
printf( "atof test: ASCII string: %s\tfloat: %e\n", s, x ); s = " -9885 pigs"; /* Test of atoi */
i = atoi( s );
printf( "atoi test: ASCII string: %s\t\tinteger: %d\n", s, i ); s = "98854 dollars"; /* Test of atol */
l = atol( s );
printf( "atol test: ASCII string: %s\t\tlong: %ld\n", s, l );
}
Outputatof test: ASCII string: -2309.12E-15 float: -2.309120e-012
atof test: ASCII string: 7.8912654773d210 float: 7.891265e+210
atoi test: ASCII string: -9885 pigs integer: -9885
atol test: ASCII string: 98854 dollars long: 98854