blob: 0437c622f5880cf39dcc61eb0ba3f8e8b1bb0eb3 (
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with open("itoa_lut.h", "w") as f:
f.write("#include <stdint.h>\n")
f.write("typedef union { struct { char chars[3]; uint8_t len; } fields; uint32_t bits; } LutEntry;\n")
f.write("const uint32_t itoa_lut[256] = {")
out = []
for i in range(0, 256):
running=len(str(i))
for j in reversed(range(3)):
running = running << 8
if j < len(str(i)):
running += ord(str(i)[j])
out.append(hex(running))
f.write(", ".join(out))
f.write("};")
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