LFIND.C
上传用户:qq5388545
上传日期:2022-07-04
资源大小:29849k
文件大小:1k
- #include <stdlib.h>
- #include <stdio.h>
- int compare_int(int *a, int *b)
- {
- return(*a - *b);
- }
- int compare_float(float *a, float *b)
- {
- return((*a == *b) ? 0: 1);
- }
- void main(void)
- {
- int int_values[] = {1, 3, 2, 4, 5};
- float float_values[] = {1.1, 3.3, 2.2, 4.4, 5.5};
-
- int *int_ptr, int_value = 2, elements = 5;
- float *float_ptr, float_value = 33.3;
- int_ptr = lfind(&int_value, int_values,
- &elements, sizeof(int),
- (int (*) (const void *, const void *)) compare_int);
- if (*int_ptr)
- printf("Value %d foundn", int_value);
- else
- printf("Value %d not foundn", int_value);
- float_ptr = lfind(&float_value, float_values,
- &elements, sizeof(float),
- (int (*) (const void *, const void *)) compare_float);
-
-
- if (*float_ptr)
- printf("Value %3.1f foundn", float_value);
- else
- printf("Value %3.1f not foundn", float_value);
- }