Created
July 7, 2017 20:53
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D Compile Time TCO
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| import std.stdio; | |
| double factorial (double i) | |
| { | |
| if (i == 1) { | |
| return 1; | |
| } | |
| else { | |
| return (i * factorial(i - 1)); | |
| } | |
| } | |
| void main() | |
| { | |
| pragma(msg, factorial(1000)); | |
| } |
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$ dub build; ./factorial
Performing "debug" build using dmd for x86_64.
factorial ~master: building configuration "application"...
source/app.d(3,8): Error: function app.factorial CTFE recursion limit exceeded
source/app.d(9,26): called from here: factorial(i - 1.00000)
source/app.d(3,8): 1000 recursive calls to function factorial
source/app.d(15,24): called from here: factorial(1001.00)
source/app.d(15,3): while evaluating pragma(msg, factorial(1001.00))
dmd failed with exit code 1.