chl_getf

Name

<chl/chl.h>

chl_getf, CHL GET float

Declaration

float chl_getf(char * name);

Description

The chl_getf function is used to fetch the value converted to a float of the GET method variable [name].

Arguments

• name: the name of the GET variable

Return value

On success: GET variable value converted to float, 0 if GET variable is not defined or -1 if conversion to float could not be done.

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Examples

Call CHL controller file 'index.chl' with GET parameters (num1=40.2, num2=10.8)

index.chl?num1=40.2&num2=10.8

main.c

#include <chl/chl.h>
#include <stdio.h>

int main() {
    float sum;

    chl_set_default_headers();
    chl_print_headers();
    
    sum = chl_getf("num1") + chl_getf("num2");
    printf("The sum of %s + %s = %f", chl_get("num1"), chl_get("num2"), sum);
}

Output: The sum of 40.2 + 10.8 = 51