Freezing after calling strcat()

2019 7 12
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更新时间：2021 8 20
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str1 = ["John ","Mary "];
str2 = ["Smith","Jones"];
str = strcat(str1,str2)
The code above is the example code from https://ww2.mathworks.cn/help/matlab/ref/strcat.html
Running this code will cause freezing, as if strcat actually doesn't support strings.

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Stephen23
Stephen23 2019-7-12
编辑：Stephen23 2019-7-12
@Disciple of the Forbidden Spell: what MATLAB version are you using? Please show the output of this command:
which strcat -all
Walter Roberson
Walter Roberson 2019-7-12
Just to check: what shows up for
which strcat(str1,str2)
>> which strcat -all
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\strcat.p
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\@cell\strcat.p % cell method
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\@cell\strcat.m % cell method
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\@string\strcat.m % string method
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\strcat.m % Shadowed
>> which strcat(str1,str2)
C:\Program Files\Polyspace\R2019a\toolbox\matlab\strfun\@string\strcat.m % string method
@Walter Roberson
That works. But what's wrong with strcat?
Walter Roberson
Walter Roberson 2019-7-13
I do not know. Perhaps it is related to Polyspace, but I do not know.

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