number of characters in a string

[berthelot samuel]

Hi,
Is there a function in C that computes the number of characters in a
string.
I want to be able to compute the number of chars in the string '1 3 4
5' by suppressing the ' ', so length should be 4 instead of 7...
Thanx
Sam

 

[Sidney Cadot]

Is there a function in C that computes the number of characters in a
string.

I want to be able to compute the number of chars in the string '1 3 4
5' by suppressing the ' ', so length should be 4 instead of 7...

What is the exact text of the problem you have to solve for your course?
My guess is that you are taking the wrong approach.

Best regards,

Sidney

 

[Robert Stankowic]

What is the exact text of the problem you have to solve for your course?
My guess is that you are taking the wrong approach.

Can it be, that the OP has wide char strings?
In this case wcslen() is what he/she needs

Just a wild guess
Robert

 

[Irrwahn Grausewitz]

Hi,
Is there a function in C that computes the number of characters in a
string.
I want to be able to compute the number of chars in the string '1 3 4
5' by suppressing the ' ', so length should be 4 instead of 7...

There's no such standard function, but it's easy to write one
yourself. Just lookup the various is...() functions declared
in ctype.h and do something like:

#include <ctype.h>

int strGraphCount( const char *s )
{
int res = 0;
for( ; *s; ++s )
if ( isgraph( *s ) )
++res;
return res;
}

HTH
Regards

 

[Sidney Cadot]

Can it be, that the OP has wide char strings?
In this case wcslen() is what he/she needs

Perhaps (that would be a problem for the course in advanced C
programming, I presume).

The OP's question smells like homework - I guess that's what I am trying
to say.

Regards,

Sidney

 

[Peter Nilsson]

There's no such standard function, but it's easy to write one
yourself. Just lookup the various is...() functions declared
in ctype.h and do something like:

#include <ctype.h>

int strGraphCount( const char *s )
{
int res = 0;

I'd go with size_t, rather than int.

for( ; *s; ++s )
if ( isgraph( *s ) )

if ( isgraph( (unsigned char) *s ) )

 

[Irrwahn Grausewitz]

Irrwahn Grausewitz <[email protected]> wrote:

I'd go with size_t, rather than int.

That'd be better design, yes.

if ( isgraph( (unsigned char) *s ) )

Uck, that was a real mistake, thanks for correction.

Regards