Mercurial > projects > ldc
view lphobos/internal/arrays.d @ 91:3f949c6e2e9d trunk
[svn r95] added support for mains like:
T main(string[] args)
fixed a bug with slicing a pointer that is an argument with no storage
author | lindquist |
---|---|
date | Wed, 07 Nov 2007 04:52:56 +0100 |
parents | b688ad419f8c |
children | 61615fa85940 |
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module internal.arrays; private import llvm.intrinsic; extern(C): int memcmp(void*,void*,size_t); size_t strlen(char*); version(LLVM64) alias llvm_memcpy_i64 llvm_memcpy; else alias llvm_memcpy_i32 llvm_memcpy; // per-element array init routines void _d_array_init_i1(bool* a, size_t n, bool v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_i8(ubyte* a, size_t n, ubyte v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_i16(ushort* a, size_t n, ushort v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_i32(uint* a, size_t n, uint v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_i64(ulong* a, size_t n, ulong v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_float(float* a, size_t n, float v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_double(double* a, size_t n, double v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init_pointer(void** a, size_t n, void* v) { auto p = a; auto end = a+n; while (p !is end) *p++ = v; } void _d_array_init(void* a, size_t na, void* v, size_t nv) { auto p = a; auto end = a + na*nv; while (p !is end) { llvm_memcpy(p,v,nv,0); p += nv; } } // array comparison routines bool _d_static_array_eq(void* lhs, void* rhs, size_t bytesize) { if (lhs is rhs) return true; return memcmp(lhs,rhs,bytesize) == 0; } bool _d_static_array_neq(void* lhs, void* rhs, size_t bytesize) { if (lhs is rhs) return false; return memcmp(lhs,rhs,bytesize) != 0; } bool _d_dyn_array_eq(void[] lhs, void[] rhs) { if (lhs.length != rhs.length) return false; else if (lhs is rhs) return true; return memcmp(lhs.ptr,rhs.ptr,lhs.length) == 0; } bool _d_dyn_array_neq(void[] lhs, void[] rhs) { if (lhs.length != rhs.length) return true; else if (lhs is rhs) return false; return memcmp(lhs.ptr,rhs.ptr,lhs.length) != 0; } // for array cast size_t _d_array_cast_len(size_t len, size_t elemsz, size_t newelemsz) { if (newelemsz == 1) { return len*elemsz; } else if (len % newelemsz) { throw new Exception("Bad array cast"); } return (len*elemsz)/newelemsz; } // creating args for main void _d_main_args(uint n, char** args, ref char[][] res) { assert(res.length == n); foreach(i,v; args[0..n]) { res[i] = v[0 .. strlen(v)]; } }