c - How to use strcmp to compar names in a csv Data -


i want open csv file , compare contents of first row. have code open file written, not know how can compare first line strcmp open file.

to open file

#include <stdio.h> #include <stdlib.h>     int main(void) {          setvbuf(stdout, null, _ionbf, 0);          setvbuf(stderr, null, _ionbf, 0);            file *f;           char file_name[255];           char data[127];            printf("which file want open : ");           scanf("%s",file_name);            f = fopen("c:\\projekt\\datei.csv","r");           if(f == null){               printf("could not open %s\n" ,file_name);               exit(0);           }  while( fgets(data, sizeof(data), f) != 0 )     fputs(data, stdout);      return 0;

}

whats in file 

"date"  "time"  "volt"  "amp"   "wirkfaktor" 26.10.13    08:00:00    237.802 1160.7682   0.7461853792 26.10.13    08:00:01    237.658 1168.92273  0.7203561543 26.10.13    08:00:02    237.815 1158.57273  0.7344799394 26.10.13    08:00:03    237.566 1174.5682   0.6960312563 26.10.13    08:00:04    238.063 1151.67273  0.80126914      #include <stdio.h>   #include <stdlib.h>   #include <string.h>    int main(void) {  setvbuf(stdout, null, _ionbf, 0);  setvbuf(stderr, null, _ionbf, 0);  file *f; char file_name[255]; char data[127];  printf("which file want open : "); scanf("%s",file_name);  f = fopen("c:\\projekt\\datei.csv","r"); if(f == null){     printf("could not open %s\n" ,file_name);     exit(0); }   while( fgets(data, sizeof(data), f) != null ){       //fputs(data, stdout);  }  int = 1; int i;  char heading[5][20]; if ( sscanf( data, "%19s%19s%19s%19s%19s", heading[0], heading[1], heading[2], heading[3], heading[4] ) != 5 ) {     = 0; }  if ( ) {      char *expected[5] = { "\"date\"t\"time\"t\"volt\"t\"amp\"t\"wirkfaktor\"" };     ( = 0; < 5; i++ )         if ( strcmp( expected[i], heading[i] ) != 0 )             = 0; }  if ( !good ) {     printf( "heading line incorrect\n" );     exit( 0 ); }    return 0;   }

to verify first line of file correct, first extract 5 strings using sscanf, , compare strings expected strings, using strcmp.

int = 1;  char heading[5][20]; if ( sscanf( data, "%19s%19s%19s%19s%19s", heading[0], heading[1], heading[2], heading[3], heading[4] ) != 5 )     = 0;  if ( ) {     char *expected[5] = { "\"date\"", "\"time\"", "\"volt\"", "\"amp\"", "\"wirkfaktor\"" };     ( = 0; < 5; i++ )         if ( strcmp( expected[i], heading[i] ) != 0 )             = 0; }  if ( !good ) {     printf( "heading line incorrect\n" );     exit( 1 ); }

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