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Joseph Poirier 2015-06-10 16:08:17 -05:00
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README.md
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@ -166,6 +166,7 @@ your target platform.
picoc is published under the "New BSD License", see the LICENSE file.
# Adding native C functions
## Introduction
@ -232,17 +233,18 @@ parameter and returns an integer value.
We've seen how to pass integers into functions. What about passing other data types?
Type Method Comment
int Param[x]->Val->Integer
char Param[x]->Val->Integer Treated as 'int' here
double Param[x]->Val->FP Only available on some systems
float Param[x]->Val->FP Same as 'double'
enum Param[x]->Val->Integer Gives integer value of enum
pointers See section below Slightly more complicated
char * See section below Slightly more complicated
arrays See section below Slightly more complicated
struct See section below Slightly more complicated
union See section below Slightly more complicated
| Type | Method | Comment
|-----------|-----------------------|-------
| int | Param[x]->Val->Integer|
| char | Param[x]->Val->Integer| Treated as 'int' here
| double | Param[x]->Val->FP | Only available on some systems
| float | Param[x]->Val->FP | Same as 'double'
| enum | Param[x]->Val->Integer| Gives integer value of enum
| pointers | See section below | Slightly more complicated
| char * | See section below | Slightly more complicated
| arrays | See section below | Slightly more complicated
| struct | See section below | Slightly more complicated
| union | See section below | Slightly more complicated
## Passing pointers
Pointer parameters are slighty more complicated to access since you have to