import itoa_ljust.c for fast number printing

converted from C++. for best speed, needs to be built with O3

1 files changed, 28 insertions, 0 deletions

diff --git a/itoa_ljust.h b/itoa_ljust.h
new file mode 100644
index 0000000..18fc94d
--- /dev/null
+++ b/itoa_ljust.h
@@ -0,0 +1,28 @@
+#ifndef ITOA_LJUST_H
+#define ITOA_LJUST_H
+
+//=== itoa_ljust.h - Fast integer to ascii conversion
+//
+// Fast and simple integer to ASCII conversion:
+//
+//   - 32 and 64-bit integers
+//   - signed and unsigned
+//   - user supplied buffer must be large enough for all decimal digits
+//     in value plus minus sign if negative
+//   - left-justified
+//   - NUL terminated
+//   - return value is pointer to NUL terminator
+//
+// Copyright (c) 2016 Arturo Martin-de-Nicolas
+// arturomdn@gmail.com
+// https://github.com/amdn/itoa_ljust/
+//===----------------------------------------------------------------------===//
+
+#include <stdint.h>
+
+char* itoa_u32(uint32_t u, char* buffer);
+char* itoa_32( int32_t i, char* buffer);
+char* itoa_u64(uint64_t u, char* buffer);
+char* itoa_64( int64_t i, char* buffer);
+
+#endif // ITOA_LJUST_H