- Compilation error
Compilation error refers to a state when a compiler fails to compile a piece of computer program source code, either due to errors from the compiler itself, or syntax errors in the code. A compilation error message often helps programmers debugging the source code for possible syntax errors.
Common C++ compilation errors
- Undeclared identifier, e.g.:
doy.cpp: In function `int main()': doy.cpp:25: `DayOfYear' undeclared (first use this function)
This means that the variable "DayOfYear" is trying to be used before being declared.
- Common function undeclared, e.g.:
xyz.cpp: In function `int main()': xyz.cpp:6: `cout' undeclared (first use this function)
This means that the programmer most likely forgot to include iostream.h.
- Parse error, e.g.:
somefile.cpp:24: parse error before `something'
This could mean that a semi-colon is missing at the end of the previous statement.
Internal Compiler Errors
These errors are not the same as normal compiler errors - they're caused by compiler itself and not the source code you're trying to compile. Which means, it's a bug in the compiler itself instead of the source code.
- internal compiler error:
somefile.c:1001: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions.
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