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Version vom 9. September 2009, 19:21 Uhr

Einführung

Vortragende: Sebastian D. <dyroff cs.tu-berlin.de>

Themen

Organisatorisches
Konzept von C
- Syntax
- Operatoren
  - ! ~
  - + - * / % ^ | & || && . [->]
  - ++ -- (++x vs x++)
  - << >>
  - += -= *= /= %= |= &= != ~= ^=
  - <<= >>=
  - Hirarchie
    - ++x*3 ?
    - TODO Weitere Beispiele! (andere Resultate, andere Parameter)

// Von Sebastian P.
#include <stdio.h>
int
main(void) {
   const int APPLE = 1;
   const int PEAR = 2;
   const int MILK = 4;
   const int FRUIT_MASK = APPLE | PEAR;
   const int meal = MILK | PEAR;
   /* Test: Does the meal contain fruits? */
   printf("%d\n", meal & FRUIT_MASK != 0); /* 0, precendence fail */
   printf("%d\n", (meal & FRUIT_MASK) != 0); /* 1, as expected */
   return 0;
}

- - x ? x : x

Hello World
Compilereinführung

Folien

Mitschnitt

@@ Zeile 8: / Zeile 8: @@
 ** Syntax
 ** Operatoren
+*** ! ~
+*** + - * / %  ^ | & || && . [->]
+*** ++ -- (++x vs x++)
+*** << >>
+*** += -= *= /= %= |= &= != ~= ^=
+*** <<= >>=
+*** Hirarchie
+**** ''++x*3'' ?
+**** '''TODO''' Weitere Beispiele! (andere Resultate, andere Parameter)
+ // Von Sebastian P.
+ #include <stdio.h>
+ int
+ main(void) {
+    const int APPLE = 1;
+    const int PEAR = 2;
+    const int MILK = 4;
+    const int FRUIT_MASK = APPLE | PEAR;
+    const int meal = MILK | PEAR;
+    /* Test: Does the meal contain fruits? */
+    printf("%d\n", meal & FRUIT_MASK != 0); /* 0, precendence fail */
+    printf("%d\n", (meal & FRUIT_MASK) != 0); /* 1, as expected */
+    return 0;
+ }
+*** x ? x : x
 * Hello World
 * Compilereinführung