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-rw-r--r--common/alnumeric.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/common/alnumeric.h b/common/alnumeric.h
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+++ b/common/alnumeric.h
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+#ifndef AL_NUMERIC_H
+#define AL_NUMERIC_H
+
+#include <stdint.h>
+
+inline constexpr int64_t operator "" _i64(unsigned long long int n) noexcept { return static_cast<int64_t>(n); }
+inline constexpr uint64_t operator "" _u64(unsigned long long int n) noexcept { return static_cast<uint64_t>(n); }
+
+/** Find the next power-of-2 for non-power-of-2 numbers. */
+inline uint32_t NextPowerOf2(uint32_t value) noexcept
+{
+ if(value > 0)
+ {
+ value--;
+ value |= value>>1;
+ value |= value>>2;
+ value |= value>>4;
+ value |= value>>8;
+ value |= value>>16;
+ }
+ return value+1;
+}
+
+/** Round up a value to the next multiple. */
+inline size_t RoundUp(size_t value, size_t r) noexcept
+{
+ value += r-1;
+ return value - (value%r);
+}
+
+#endif /* AL_NUMERIC_H */