dynamic charecter in c & output format

[ayan4u]

ok i have two problems...

firstly in strict C enviornment is it possible to have a true dynamic charecter array with no predefined length...i mean to say...

suppose..

char *array =NULL;
/*
actually i dnt know what the exact size of my string is so i aquire sace for 1 charecter from heap
/*
array =(char *)malloc(sizeoof(char));

/* now i input a string using this pointer to charecter*/
gets(array);
/* in know this is a bad idea but what are the altarnatives */
....
....

delete array;
/* this is bound to give a warning:HEAP during debuggn as i requested only for a space for 1 charecter */

so wat can be done to avoid this.....


one more question...

like is c we have an output format...printf("%0.2f", sum_float);
is there similar things in c++.....

[Savage]

ok i have two problems...

firstly in strict C enviornment is it possible to have a true dynamic charecter array with no predefined length...i mean to say...

suppose..

char *array =NULL;
/*
actually i dnt know what the exact size of my string is so i aquire sace for 1 charecter from heap
/*
array =(char *)malloc(sizeoof(char));

/* now i input a string using this pointer to charecter*/
gets(array);
/* in know this is a bad idea but what are the altarnatives */
....
....

delete array;
/* this is bound to give a warning:HEAP during debuggn as i requested only for a space for 1 charecter */

so wat can be done to avoid this.....


one more question...

like is c we have an output format...printf("%0.2f", sum_float);
is there similar things in c++.....

Sure,check it out here

Savage

[ayan4u]

Sure,check it out here

Savage

thanks but that was of little help.....firstly i am in pure C enviornment...i.e, no "new"....secondly i donot know the length before hand....so cannot use array....can you elaborate about what you are suggesting....