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Test 1st Character

Test 1st Character

Test 1st Character



I am now coming back to 'C' after years away. My first task is to process an ASCII file of data. Only records that start with one of ten characters are required - the rest can be disregarded. So after doing an 'fgets' I need to check the first character. Testing one at a time against the ten seems messy - is there an elegant solution?


YoungCodger bigglasses

RE: Test 1st Character

however you've to read all records and all chars in arecord;
in plain text files, records is a Human assuption, the APIs see the file as a stream of chars;


char buffer[ENOUGH] ;

while( fgets( buffer, sizeof(buffer), stream ) != NULL )
    if( !IsMychar(buffer[0]) )
        continue ;

    buffer[strlen(buffer)-1] = 0 ; // if you want del NL


//test here if exit from loop for EOF or other


BOOL IsMyChar( char c )
switch c
    case 'A' :
    case 'B' :
    case 'C' :
    case 'D' : return 1;
return 0 ;


RE: Test 1st Character


const char* wanted = ".....";
while (fgets(line...)) {
    if (strchr(wanted,*line)) {
        /* that's it! */

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