INFO: C2059, C2143: Syntax Errors Involving 'int constant'

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Article ID: 71767 - View products that this article applies to.
This article was previously published under Q71767
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SUMMARY

When compiling a program with the Microsoft C/C++ compiler, the following error may be generated if an integer constant is recognized syntactically as being in an illegal location:
error C2059: syntax error: 'int constant'
Microsoft C/C++ 7.0 and Visual C++ may generate the following:
C2143: syntax error: missing ';' before 'constant'
-or-
C2143: syntax error: missing ';' before 'int constant'
Depending on the code, this error may result from a failure to include a line continuation character in a multi-line #define or macro definition statement, or from placing an integer constant on a line by itself.

MORE INFORMATION

The sample code below demonstrates how this particular error might be generated. The #define statement spans two lines, but the line continuation character (a backslash) was inadvertently omitted from the end of the first line. This causes the compiler to "see" the integer constants as being on a line by themselves without any contextual meaning, and thus the C2059 error is generated.

Sample Code

/* Compile options needed: none
*/ 

#define coordinates {
      16,16  }

void main(void)
{
}
				

Properties

Article ID: 71767 - Last Review: July 5, 2005 - Revision: 3.1
APPLIES TO
  • Microsoft C Professional Development System 6.0a
  • Microsoft C Professional Development System 6.0a
  • Microsoft Visual C++ 1.0 Professional Edition
  • Microsoft Visual C++ 1.5 Professional Edition
  • Microsoft Visual C++ 1.51
  • Microsoft Visual C++ 1.52 Professional Edition
  • Microsoft Visual C++ 1.0 Professional Edition
  • Microsoft Visual C++ 2.0 Professional Edition
  • Microsoft Visual C++ 2.1
  • Microsoft Visual C++ 4.0 Standard Edition
  • Microsoft Visual C++ 5.0 Standard Edition
Keywords: 
kbcompiler kberrmsg kbinfo KB71767
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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