comparison: databuffer.h
databuffer.h
- changeset 34
- 0a9a5902beaa
- parent 32
- d11a034aabfd
- child 36
- a8838b5f1213
equal
deleted
inserted
replaced
| 33:fd35f6cb5f28 | 34:0a9a5902beaa |
|---|---|
| 102 buffer[writesize] = CharByte<T> (stuff, x); | 102 buffer[writesize] = CharByte<T> (stuff, x); |
| 103 writesize++; | 103 writesize++; |
| 104 } | 104 } |
| 105 } | 105 } |
| 106 | 106 |
| 107 // Merge another data buffer into this one. | |
| 108 void Merge (DataBuffer* other) { | |
| 109 for (unsigned int x = 0; x < other->writesize; x++) { | |
| 110 unsigned char c = *(other->buffer+x); | |
| 111 Write<unsigned char> (c); | |
| 112 } | |
| 113 | |
| 114 delete other; | |
| 115 } | |
| 116 | |
| 107 private: | 117 private: |
| 108 template <class T> unsigned char CharByte (T a, unsigned int b) { | 118 template <class T> unsigned char CharByte (T a, unsigned int b) { |
| 109 if (b >= sizeof (T)) | 119 if (b >= sizeof (T)) |
| 110 error ("CharByte: tried to get byte %u out of a %u-byte %s\n", | 120 error ("CharByte: tried to get byte %u out of a %u-byte %s\n", |
| 111 b, sizeof (T), typeid(T).name()); | 121 b, sizeof (T), typeid (T).name()); |
| 112 | 122 |
| 113 unsigned long p1 = pow<unsigned long> (256, b); | 123 unsigned long p1 = pow<unsigned long> (256, b); |
| 114 unsigned long p2 = pow<unsigned long> (256, b+1); | 124 unsigned long p2 = pow<unsigned long> (256, b+1); |
| 115 unsigned long r = (a % p2) / p1; | 125 unsigned long r = (a % p2) / p1; |
| 116 | 126 |
| 117 if (r > 256) | 127 if (r > 256) |
| 118 error ("result %lu too big!", r); | 128 error ("DataBuffer::CharByte: result %lu too big!", r); |
| 119 | 129 |
| 120 unsigned char ur = static_cast<unsigned char> (r); | 130 unsigned char ur = static_cast<unsigned char> (r); |
| 121 return ur; | 131 return ur; |
| 122 } | 132 } |
| 123 }; | 133 }; |
