+= works weird for strings

pik33

dim filename$ as string
filename$="123456"
filename$+=space$(38)
print filename$

It compiles, but:
warning: assignment discards const attribute from pointer
and the result is: �x3��

Standard syntax works as expected: the result is 123456 and 38 spaces at the end.

dim filename$ as string
filename$="123456"
filename$=filename$+space$(38)
print filename$

ersmith

@pik33 said:

dim filename$ as string
filename$="123456"
filename$+=space$(38)
print filename$

It compiles, but:
warning: assignment discards const attribute from pointer
and the result is: �x3��

Standard syntax works as expected: the result is 123456 and 38 spaces at the end.

dim filename$ as string
filename$="123456"
filename$=filename$+space$(38)
print filename$

There were some bugs with handling the temporary strings required for += when the right hand side is a function call. For now either avoid += with strings (except for simple variables and literal strings) or else update to the most recent github source code.

Thanks for the bug report,