Mercurial > projects > ldc
view test/funcptr.d @ 284:70c370e97944 trunk
[svn r305] Started support for custom class allocators/deallocators. Allocators with more than one argument still need to be fixed.
Removed the LLVM stacktrace code from mars.c.
Moved the LLVM based default target detection code from mars.c to llvmhelpers.cpp.
author | lindquist |
---|---|
date | Sat, 21 Jun 2008 02:48:53 +0200 |
parents | d9d5d59873d8 |
children |
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extern(C) int printf(char*, ...); int return_six() { return 6; } int add_int(int a, int b) { return a+b; } int sub_int(int a, int b) { return a-b; } alias int function(int,int) binfn_t; int binop_int(binfn_t op, int a, int b) { return op(a,b); } binfn_t get_binop_int(char op) { binfn_t fn; if (op == '+') fn = &add_int; else if (op == '-') fn = &sub_int; return fn; } extern(C) float mul_float(float a, float b) { return a * b; } void function_pointers() { int function() fn = &return_six; assert(fn() == 6); binfn_t binfn = &add_int; assert(binfn(4,1045) == 1049); assert(binop_int(binfn, 10,656) == 666); binfn = get_binop_int('+'); assert(binop_int(binfn, 10,100) == 110); binfn = get_binop_int('-'); assert(binop_int(binfn, 10,100) == -90); { auto ffn = &mul_float; float ftmp = mul_float(2.5,5); assert(ftmp == 12.5); assert(ftmp > 12.49 && ftmp < 12.51); } } void main() { printf("Function pointer test\n"); function_pointers(); printf(" SUCCESS\n"); }