c - Attaching a fix integer to a string -

im trying find way, when user inputs 2 colors, program automatically gives each integer value of choice.

example:

#include <stdio.h> #include <math.h>  enum color {     black = 0,     brown = 1,     red = 2,     orange = 3,     yellow = 4,     green = 5,     blue = 6,     purple = 7,     grey = 8,     white = 9  } colors;  int main(){     int sum;     char first, second;     printf("enter first 2 colors");     scanf("%s %s", &first, &second);     sum = first + second     printf("%d", colors);     getch();     return 0; } 

first things first, need end each of statements semicolon ;, there's 1 missing after sum = ... line.

just side note: when declaring enumerated types that, mean, starting 0 , increasing one, don't have make assignments. write enum color { black, brown, red, ... } colors; , same.

as per answer @ comments, seem want print sum out, instead of colors. so, change printf line this:

printf( "%d", sum ); 

another thing; cannot store sequence of characters inside single character. store sequence of characters, need memory space can hold sequence of characters. 1 way declare array of characters, this:

char first[15]; 

when that, computer automatically allocates 15 * sizeof( char ) big memory you, first 1 of them being first[0] , last 1 being first[14]. address of first first + 0 or first, , address of last first + 14.

other way manually allocate memory, won't that.

so, obtain 2 strings, code should following:

char first[15]; char second[15]; scanf( "%s %s", first, second ); // notice omitted ampersands (&) // since first , second addresses 

now sad part: cannot desire that. variable names, enumerated type labels... labels, don't mean computer.

you can, however, desire in many, many ways. i'll offer easiest one:

// didn't beautiful...  #include <string.h>  ...  int firstid;  if ( strcmp( "black", first ) == 0 )     firstid = 0; else if ( strcmp( "brown", first ) == 0 )     firstid = 1; else if ( strcmp( "red", first ) == 0 )     firstid = 2; else if ( strcmp( "orange", first ) == 0 )     firstid = 3; else if ( strcmp( "yellow", first ) == 0 )     firstid = 4; else if ( strcmp( "green", first ) == 0 )     firstid = 5; else if ( strcmp( "blue", first ) == 0 )     firstid = 6; else if ( strcmp( "purple", first ) == 0 )     firstid = 7; else if ( strcmp( "grey", first ) == 0 )     firstid = 8; else if ( strcmp( "white", first ) == 0 )     firstid = 9; else     firstid = -1; 

one way or another, checking if string have matches string you'd have necessary. strcmp function makes lexicographical comparison between 2 strings; returns negative value if first string less second, i.e. can found earlier in dictionary, positive if opposite, 0 if same.

now, have written first one, , looks horrible is... idea abstract thing out of our main, , put inside function. let's call our function colorid, , define follows:

int colorid( char colorname[] ){     if ( strcmp( "black", colorname ) == 0 )         return 0;     else if ( strcmp( "brown", colorname ) == 0 )         return 1;     else if ( strcmp( "red", colorname ) == 0 )         return 2;     else if ( strcmp( "orange", colorname ) == 0 )         return 3;     else if ( strcmp( "yellow", colorname ) == 0 )         return 4;     else if ( strcmp( "green", colorname ) == 0 )         return 5;     else if ( strcmp( "blue", colorname ) == 0 )         return 6;     else if ( strcmp( "purple", colorname ) == 0 )         return 7;     else if ( strcmp( "grey", colorname ) == 0 )         return 8;     else if ( strcmp( "white", colorname ) == 0 )         return 9;     else         return -1; } 

now, calling colorid( first ); , colorid( second ); should give individual values you'd them correspond.

i have removed enum had, included string.h #include <string.h> (for strcmp), added function colorid above is, , changed main following:

int main( ){     int sum;     char first[15], second[15];     printf( "enter first 2 colors" );     scanf( "%14s %14s", &first, &second );     // 14's between % , s limit amount of characters     // obtained , written      sum = colorid( first ) + colorid( second );      printf( "%d", sum );     getch( );     return 0; } 

and right now, think think desiring do.