Mercurial > projects > ldc
annotate tests/mini/funcptr.d @ 468:45a67b6f1310
Removed the 'needsstorage' thing from Dsymbol. Arguments are not always given storage when applicable. This is not longer treat specially
in this regard. Code for accessing nested variables and contexts rewritten. Probably more. Fairly well tested.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Mon, 04 Aug 2008 02:59:34 +0200 |
parents | 1bb99290e03a |
children |
rev | line source |
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270
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
102
diff
changeset
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1 extern(C) int printf(char*, ...); |
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
102
diff
changeset
|
2 |
1 | 3 int return_six() |
4 { | |
5 return 6; | |
6 } | |
7 | |
8 int add_int(int a, int b) | |
9 { | |
10 return a+b; | |
11 } | |
12 | |
13 int sub_int(int a, int b) | |
14 { | |
15 return a-b; | |
16 } | |
17 | |
18 alias int function(int,int) binfn_t; | |
19 | |
20 int binop_int(binfn_t op, int a, int b) | |
21 { | |
22 return op(a,b); | |
23 } | |
24 | |
25 binfn_t get_binop_int(char op) | |
26 { | |
27 binfn_t fn; | |
28 if (op == '+') | |
29 fn = &add_int; | |
30 else if (op == '-') | |
31 fn = &sub_int; | |
32 return fn; | |
33 } | |
34 | |
35 extern(C) float mul_float(float a, float b) | |
36 { | |
37 return a * b; | |
38 } | |
39 | |
40 void function_pointers() | |
41 { | |
42 int function() fn = &return_six; | |
43 assert(fn() == 6); | |
44 | |
45 binfn_t binfn = &add_int; | |
46 assert(binfn(4,1045) == 1049); | |
102
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
1
diff
changeset
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47 |
1 | 48 assert(binop_int(binfn, 10,656) == 666); |
102
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
1
diff
changeset
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49 |
1 | 50 binfn = get_binop_int('+'); |
51 assert(binop_int(binfn, 10,100) == 110); | |
52 binfn = get_binop_int('-'); | |
53 assert(binop_int(binfn, 10,100) == -90); | |
102
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
1
diff
changeset
|
54 |
1 | 55 { |
56 auto ffn = &mul_float; | |
57 float ftmp = mul_float(2.5,5); | |
58 assert(ftmp == 12.5); | |
59 assert(ftmp > 12.49 && ftmp < 12.51); | |
60 } | |
61 } | |
62 | |
63 void main() | |
64 { | |
65 printf("Function pointer test\n"); | |
66 function_pointers(); | |
67 printf(" SUCCESS\n"); | |
68 } |