float x = 226.0;
    if( ABS(x-226.0)>0.00000001 ){ printf("ajaja\n"); }

##</code><code>##

perl -V:nvsize -V:nvtype
nvsize='8';
nvtype='double';

##</code><code>##

/* gcc a.c */
#include <stdio.h>
#define ABS(A) ((A)>0?(A):(-(A)))
int main(void){
    float version = 2.26;
    float newversion = version + 0.01;
    printf("version=%f, newversion=%f\n", version, newversion);

    /* bliako's "check" */
    printf("2.26*100=%.8f\n", 2.26*100);
    float x = 226.0;
    if( ABS(x-226.0)>0.00000001 ){ printf("bliako's check has ABS error\n"); } else {printf("bliako's check OK\n");}

    /* closer check: check the multiplied value against the hardcoded 226.0 */
    /*  as a 32bit float, the ULP(226.0) is (2**7)*(2**-23) = 2**-16 = 15.259e-6 = 1.5259e-5, so a 1 ULP error would be >1.525e-5, so also greater than 0.00000001 */
    x = 2.26 * 100.0;
    printf("2.26*100=%.16f\n", x);
    if( ABS(x-226.0)>0.00000001 ){ printf("float-ULP check has ABS error\n"); } else {printf("float-ULP check OK\n");}

    /* but perl with nvtype=double requires a check against a c double, where the ULP(226.0) = 2.842e-14 */
    double d = 2.26 * 100.0;
    printf("2.26*100=%.16lf\n", d);
    if( ABS(d-226.0)>=2.842e-14 ){ printf("double-ULP check has ABS error\n"); } else {printf("double-ULP check OK\n");}
}

##</code><code>##

version=2.260000, newversion=2.270000
2.26*100=226.00000000
bliako's check OK
2.26*100=226.0000000000000000
float-ULP check OK
2.26*100=225.9999999999999700
double-ULP check has ABS error