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Using strtol

#include <stdio.h> #include <stdlib.h> int main() {                                     const char *string = "-1234567abc";         char *remainderPtr;     long x;                     x = strtol( string, &remainderPtr, 0 );    printf( "%s\"%s\"\n%s%ld\n%s\"%s\"\n%s%ld\n",            "The original string is ", string,            "The converted value is ", x,            "The remainder of the original string is ",             remainderPtr,            "The converted value plus 567 is ", x + 567 );    return 0;  } The original string is "-1234567abc" The converted value is -1234567 The remainder of the original string is "abc" The converted value plus 567 is -1234000