• p.shkadzko (20/21) Apr 15 2020 Performing "debug" build using ldc2 for x86_64.
• H. S. Teoh (9/34) Apr 15 2020 Are you sure the error is on the line you indicated? The error message
• bauss (3/44) Apr 15 2020 It also says line 221. In which case he should be able to track
• p.shkadzko (3/15) Apr 15 2020 I should stop programming at night. Indeed it was the incorrect

p.shkadzko <p.shkadzko gmail.com> writes:

I am quite confused by the following exception during dub build:

 dub build --single demo.d --compiler=ldc2 --force

Performing "debug" build using ldc2 for x86_64.
demo ~master: building configuration "application"...
demo.d(221,20): Error: template object.get cannot deduce function 
from argument types !()(double[string], string, string), 
candidates are:
C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2645,10):       
  get(K, V)(inout(V[K]) aa, K key, lazy inout(V) defaultValue)
C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2652,10):       
  get(K, V)(inout(V[K])* aa, K key, lazy inout(V) defaultValue)

The code that causes it:

"""
void main(string[] args) {

     double[string] scores = calculateScores("test.txt");
     double score = scores.get("hello", 0.0); // <-- exception
}
"""

It works if I just do "double score = scores["hello"];"
Both dmd and ldc2 throw this exception.
Is it a bug?

"H. S. Teoh" <hsteoh quickfur.ath.cx> writes:

On Wed, Apr 15, 2020 at 09:46:58PM +0000, p.shkadzko via Digitalmars-d-learn
wrote:
 I am quite confused by the following exception during dub build:
 
 dub build --single demo.d --compiler=ldc2 --force

 Performing "debug" build using ldc2 for x86_64.
 demo ~master: building configuration "application"...
 demo.d(221,20): Error: template object.get cannot deduce function from
 argument types !()(double[string], string, string), candidates are:
 C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2645,10):        get(K,
 V)(inout(V[K]) aa, K key, lazy inout(V) defaultValue)
 C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2652,10):        get(K,
 V)(inout(V[K])* aa, K key, lazy inout(V) defaultValue)
 
 The code that causes it:
 
 """
 void main(string[] args) {
 
     double[string] scores = calculateScores("test.txt");
     double score = scores.get("hello", 0.0); // <-- exception
 }
 """
 
 It works if I just do "double score = scores["hello"];"
 Both dmd and ldc2 throw this exception.
 Is it a bug?

Are you sure the error is on the line you indicated? The error message
claims that your argument types are (double[string], string, string),
but your code clearly has argument types (double[sting], string,
double).  Are you sure dub is compiling the source file(s) you think
it's compiling?  Which source file(s) are shown by `dub -v`?


T

-- 
Leather is waterproof.  Ever see a cow with an umbrella?

bauss <jj_1337 live.dk> writes:

On Wednesday, 15 April 2020 at 22:09:32 UTC, H. S. Teoh wrote:
 On Wed, Apr 15, 2020 at 09:46:58PM +0000, p.shkadzko via 
 Digitalmars-d-learn wrote:
 I am quite confused by the following exception during dub 
 build:
 
 dub build --single demo.d --compiler=ldc2 --force

 Performing "debug" build using ldc2 for x86_64.
 demo ~master: building configuration "application"...
 demo.d(221,20): Error: template object.get cannot deduce 
 function from
 argument types !()(double[string], string, string), candidates 
 are:
 C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2645,10):
     get(K,
 V)(inout(V[K]) aa, K key, lazy inout(V) defaultValue)
 C:\ldc2-1.20.0-windows-x64\bin\..\import\object.d(2652,10):
     get(K,
 V)(inout(V[K])* aa, K key, lazy inout(V) defaultValue)
 
 The code that causes it:
 
 """
 void main(string[] args) {
 
     double[string] scores = calculateScores("test.txt");
     double score = scores.get("hello", 0.0); // <-- exception
 }
 """
 
 It works if I just do "double score = scores["hello"];"
 Both dmd and ldc2 throw this exception.
 Is it a bug?

 Are you sure the error is on the line you indicated? The error 
 message
 claims that your argument types are (double[string], string, 
 string),
 but your code clearly has argument types (double[sting], string,
 double).  Are you sure dub is compiling the source file(s) you 
 think
 it's compiling?  Which source file(s) are shown by `dub -v`?


 T

It also says line 221. In which case he should be able to track 
it down to line 221 and see where the error is.

p.shkadzko <p.shkadzko gmail.com> writes:

On Wednesday, 15 April 2020 at 22:09:32 UTC, H. S. Teoh wrote:
 On Wed, Apr 15, 2020 at 09:46:58PM +0000, p.shkadzko via 
 Digitalmars-d-learn wrote:
 [...]

 Are you sure the error is on the line you indicated? The error 
 message
 claims that your argument types are (double[string], string, 
 string),
 but your code clearly has argument types (double[sting], string,
 double).  Are you sure dub is compiling the source file(s) you 
 think
 it's compiling?  Which source file(s) are shown by `dub -v`?


 T

I should stop programming at night. Indeed it was the incorrect 
.get("a", "NULL") instead of .get("a", 0.0), sigh. Sorry guys.