| … | |
… | |
| 183 | Marks a function or a variable as "unused", which simply suppresses a |
183 | Marks a function or a variable as "unused", which simply suppresses a |
| 184 | warning by GCC when it detects it as unused. This is useful when you e.g. |
184 | warning by GCC when it detects it as unused. This is useful when you e.g. |
| 185 | declare a variable but do not always use it: |
185 | declare a variable but do not always use it: |
| 186 | |
186 | |
| 187 | { |
187 | { |
| 188 | int var ecb_unused; |
188 | ecb_unused int var; |
| 189 | |
189 | |
| 190 | #ifdef SOMECONDITION |
190 | #ifdef SOMECONDITION |
| 191 | var = ...; |
191 | var = ...; |
| 192 | return var; |
192 | return var; |
| 193 | #else |
193 | #else |
| … | |
… | |
| 245 | |
245 | |
| 246 | Example: multiply a vector, and allow the compiler to parallelise the |
246 | Example: multiply a vector, and allow the compiler to parallelise the |
| 247 | loop, because it knows it doesn't overwrite input values. |
247 | loop, because it knows it doesn't overwrite input values. |
| 248 | |
248 | |
| 249 | void |
249 | void |
| 250 | multiply (float *ecb_restrict src, |
250 | multiply (ecb_restrict float *src, |
| 251 | float *ecb_restrict dst, |
251 | ecb_restrict float *dst, |
| 252 | int len, float factor) |
252 | int len, float factor) |
| 253 | { |
253 | { |
| 254 | int i; |
254 | int i; |
| 255 | |
255 | |
| 256 | for (i = 0; i < len; ++i) |
256 | for (i = 0; i < len; ++i) |
