opal crow
sprintf()
opal crow
hence the leading s on sprintf() -- it stands for "string". or, in full form, sprintf() == "string print format ( )"
prisma spire
this is UB. sizeof is wrong here
if you to skip null terminators you'd need some mechanism to determine the length of the string first
opal crow
this is UB. `sizeof` is wrong here
if you to skip null terminators you'd need so...
i'd have thought the fact that it was initialized as an array of constant width in the current scope would make that a non-issue -- but that 4 is coming from somewhere, my guess is an off-by-one error
prisma spire
;compile -Wall -Wextra
#include <assert.h>
#include <string.h>
int main(void) {
char str[42] = "hello, world";
assert(sizeof str != strlen(str));
}```
high joltBOT
prisma spire
i'd have thought the fact that it was initialized as an array of constant width ...
as you can see - thats very much not the case
prisma spire
this is UB. `sizeof` is wrong here
if you to skip null terminators you'd need so...
.
up to you. you'd basically need to implement your own string type
i don't think you can do it using raw using c-strings
So i need to create a string object that doesnt stop with a \0
not really. you make have it stop with a null terminator.
but how will i use all the functions that need strings
well... you can't really use use as is can you? your 'full strings' will be truncated.
implement your own
if you're only dealing with small strings - the easiest way i can think of is using pascal strings, reserving the first (or the couple first) char(s) for the length
10MiB string? really? you might want to break it up.
if thats the case (for the third time) implement your own string object
i don't follow
late kite
fwrite(large_string, 1, <size>, stdout);?
i dont follow the converstation but im pretty sure you want this
prisma spire
is the file consists of ascii text alone? whats wrong with reading it one line at a time then?
prisma spire
`fwrite(large_string, 1, <size>, stdout);`?
is also an option
sorry? what does that means exactly?
why don't you actually state the problem you're trying to solve instead of us trying to query you one thing at a time?
sorry, that still makes no sense. what does 'hex representation of file' means? and what that 'saved in string.h' means?
you have yet to answer my first question...
as a side note: don't name your header string.h
that wasn't my question...
regardless - as mentioned above - you'd need to determine the length of the string.
since you (now) mentioned said string it declared in a header, i.e. it has a static duration, sizeof large_string is well defined (since static duration objects are default initialized). in that particular case - you just need to determine when the string actually end, and thats depend on the data you're operating on
assuming 2 consecutive 0s signify the end of data - one can simply do:
for(size_t i = 0; i < sizeof str - 1; i++) {
if(str[i] == str[i + 1] == 0) break;
if(str[i] == 0) { printf("\\0"); }
printf("%c", str[i]);
}```
or something along these lines (this particular case doesn't handle the edge case where `str[sizeof str - 1]` is a valid char. you'd need to solve it on your own)
primal horizonBOT