trim_dec.c

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#include <string.h>
#include <grass/gis.h>


int G_trim_decimal(char *buf)
{
    char *mark;

    /* don't trim e+20 into e+2 */
    if( strchr(buf, 'e') || strchr(buf, 'E') )
        return 0;

    /* find the . */
    while (*buf != '.')
        if (*buf++ == 0)
            return 0;

    mark = buf;
    while (*++buf)
        if (*buf != '0')
            mark = buf + 1;
    *mark = 0;

    return 0;
}