Simple Question about Type Conversion 1

[gr8gonzo]

I have a C program that has the following:

... misc header code ...

int main(int argc, char *argv[]) {

some_function(argv[3]);
some_other_function(argv[4]);
price = 50.00;

}

Now, I specify a few options as parameters when I run the program like: program "value1" "value2"

I want to be able to specify price, which is a double, via the command line. But argv is already declared as char, so it is giving me problems. How can I take argv[5] and parse it/convert it into a value (double or integer or something) ?

- Jonathan

 

[Cagliostro]

see sscanf:

float price;
sscanf(arcv[xxx],"%f",&price);

also there exist atoi family functions. They also does such type of conversions. Ion Filipski

filipski@excite.com

 

[debasishpramanik]

The function is atof
do
double d= atof(argv[4]);

 

[SwapSawe]

Hi,

In my humble opinion, using strtod() and strtoul() is better than usin atof() function as strto... functions provide better error detection than ato... functions.

Regards,
SwapSawe.