| 27,12 → 27,16 |
|---|
| |
| assumed only powers of 10 [scientific notation] |
| |
| |
| 12/2012 |
| Modified : using only 10^ in powers |
| (e+8 -> *10^8 ; e-8 -> *10^-8) |
| Extra syntax error signal (using more than 1 'e') |
| |
| */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #define MAX_DIGITS 20 |
| #define MAX_DIGITS 32 |
| #define MAX_CONV 32 |
| |
| int main( int argc , char *argv[]){ |
| 84,6 → 88,10 |
|---|
| // next item in input argv[1] |
| strncpy( word, ptr, MAX_DIGITS); |
| length = strlen(ptr); |
| if(length > MAX_DIGITS-1){ |
| fprintf(stdout,"ERROR string too large\n"); |
| exit(0); |
| } |
| //reset counters |
| powE = 0; |
| pow10 = 0; |
| 91,13 → 99,18 |
|---|
| idx2 = 0; |
| i = 0; |
| for( i = 0; i < length ; i++){ |
| if(powE > 1 ){ |
| fprintf(stdout,"ERROR in syntax\n"); |
| exit(0); |
| } |
| if( idx1 + idx2 > MAX_DIGITS-1){ |
| fprintf(stdout,"ERROR string too large\n"); |
| exit(0); |
| } |
| switch( word[i] ){ |
| case 'e' : powE=1;break; |
| case 'E' : powE=1;break; |
| case '+' : break; /* do not use 10^+2 */ |
| case 'e' : powE++;break; |
| case 'E' : powE++;break; |
| case 'x' : pow10++;break; |
| case '*' : pow10++;break; |
| case '^' : pow10=5;break; |
| 104,7 → 117,7 |
|---|
| default : |
| if( pow10 > 0 ){ |
| pow10++; |
| if( pow10 > 4 ){ //1.23 *10^ |
| if( pow10 > 4 ){ /* *10^ = 4 chars */ |
| exponent[idx2]=word[i]; |
| idx2++; |
| } |
| 111,7 → 124,7 |
|---|
| } |
| else |
| { |
| if(powE == 1){ |
| if(powE > 0){ |
| exponent[idx2] = word[i]; |
| idx2++; |
| } |
| 128,11 → 141,11 |
|---|
| number[idx1] = '\0'; |
| if( powE == 1 || pow10> 0 ){ |
| if(cnt > 1){ |
| fprintf( stdout , ",%.*fe%s" , DECIMALS , atof(number) , exponent ); |
| fprintf( stdout , ",%.*f*10^%s" , DECIMALS , atof(number) , exponent ); |
| } |
| else |
| { |
| fprintf( stdout , "%.*fe%s" , DECIMALS , atof(number) , exponent ); |
| fprintf( stdout , "%.*f*10^%s" , DECIMALS , atof(number) , exponent ); |
| } |
| } |
| else |