memchr() - Buffer Manipulation Function
How to scan / search memory for characters in C++?
Explanation
memchr() memory manipulation function searches / scans the of the array "buffer" for first occurence of the character "ch" in the first "count".
void * memchr( void * buffer, int ch, size_t count );
Result :
Character a not found
In the above example, "memchr()" manipulation function is used to check if "a" is found in the "str1". It is done by scanning / searching the memory for the specified symbol.
Syntax:
void * memchr( void * buffer, int ch, size_t count );
Example :
| #include <stdio.h> #include <string.h> int main () { char str1[] = "United"; if( memchr(str1,'a',strlen(str1)) == NULL ) { printf( "Character a not found\n" ); } else { printf( "Found a\n" ); } return 0; } |
Result :
Character a not found
In the above example, "memchr()" manipulation function is used to check if "a" is found in the "str1". It is done by scanning / searching the memory for the specified symbol.
