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Format.fprintf does not support string substitution #5803

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vicuna opened this Issue Oct 28, 2012 · 2 comments

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vicuna commented Oct 28, 2012

Original bug ID: 5803
Reporter: @bobzhang
Status: closed (set by @xavierleroy on 2015-12-11T18:20:57Z)
Resolution: fixed
Priority: normal
Severity: minor
Target version: 4.01.0+dev
Fixed in version: 4.01.0+dev
Category: standard library
Monitored by: @hcarty

Bug description

let print_money currency_fmt sum =
Printf.printf "ammount due: %(%i%)" currency_fmt sum;;
let print_dollar sum = print_money "$ %i" sum ;;

print_dollar 32;;

let print_money currency_fmt sum =
Format.fprintf Format.std_formatter "ammount due: %(%i%)" currency_fmt sum;;
let print_dollar sum = print_money "$ %i" sum ;;
print_dollar 32;

the two print_dollars behave differently..

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vicuna commented Jan 3, 2013

Comment author: @damiendoligez

The second version prints "ammount due: ", then returns a wrong value (probably a closure) under the [unit] type. This is a bug in Format.

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vicuna commented Jul 11, 2013

Comment author: @damiendoligez

This appears to be fixed in 4.01.0+dev.

@vicuna vicuna closed this Dec 11, 2015

@vicuna vicuna added the stdlib label Mar 14, 2019

@vicuna vicuna added this to the 4.01.0 milestone Mar 14, 2019

@vicuna vicuna added the bug label Mar 20, 2019

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