Convert a floating point number to an integer. This function returns the integral part of the number and does roughly correspond to the C++ function "floor()". When in doubt, round the float values before conversion.

Name Type Default Description
Return int   f as integer
f float - number to convert
int main()
{
    // toint(2.9) returns 2
    showmessage("%d", toint(2.9));
    // toint(-2.9) returns -2
    showmessage("%d", toint(-2.9));
return 0; }

Der Datentyp int ist 64 Bit breit. Hier ein Beispiel mit Zahlen, deren Darstellung mehr als 32 Bit benötigt.

int main ()
{
    int    	a 		= 6917529027641081856;
    char  *	astr	= "6917529027641081856";
wlog ("", "a=%d\t(and as string '%s')\n", a, itoa (a)); wlog ("", "a=0x%x\t(and as string '%s')\n", a, itoa (a)); wlog ("", "astr='%s'\t(and as int %d)\n", astr, val (astr)); wlog ("", "astr='%s'\t(and as int 0x%x)\n", astr, val (astr));
wlog ("", "string compare : a ?= astr : %d\n", (a == val (astr))); wlog ("", "int compare : a ?= astr : %d\n", strcmp (itoa (a), astr)==0);
return 0; } // Ausgabe // //a=6917529027641081856 (and as string '6917529027641081856') //a=0x6000000000000000 (and as string '6917529027641081856') //astr='6917529027641081856' (and as int 6917529027641081856) //astr='6917529027641081856' (and as int 0x6000000000000000) //string compare : a ?= astr : 1 //int compare : a ?= astr : 1

Das obige Beispiel funktioniert natürlich auch dann, wenn die Zahlen als Hex-Zahlen definiert werden.

int main ()
{
    int    	a 		= 0x6000000000000000;
    char  *	astr	= "0x6000000000000000";
wlog ("", "a=%d\t(and as string '%s')\n", a, itoa (a)); wlog ("", "a=0x%x\t(and as string '%s')\n", a, itoa (a)); wlog ("", "astr='%s'\t(and as int %d)\n", astr, val (astr)); wlog ("", "astr='%s'\t(and as int 0x%x)\n", astr, val (astr));
wlog ("", "string compare : a ?= astr : %d\n", (a == val (astr))); wlog ("", "int compare : a ?= astr : %d\n", strcmp (itoa (a), astr)==0);
return 0; } // Ausgabe // //a=6917529027641081856 (and as string '6917529027641081856') //a=0x6000000000000000 (and as string '6917529027641081856') //astr='0x6000000000000000' (and as int 6917529027641081856) //astr='0x6000000000000000' (and as int 0x6000000000000000) //string compare : a ?= astr : 1 //int compare : a ?= astr : 1

Since
Version 1.4.1, R423, 30. Jul. 2007

Available
priint:comet InDesign® Plug-Ins, comet_pdf, Illustrator

See Also
tofloat

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