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Full Discussion: Issue in inserting null string in array
Operating Systems Linux Issue in inserting null string in array Post 302988562 by RudiC on Wednesday 28th of December 2016 08:18:35 AM
Old 12-28-2016
PLEASE DON'T modify posts if people have already answered, pulling the rug from under their feet!

On a vague specification without decent sample input and output data and detailed error description, you can expect very generic replies only:
- How do you tell "null strings" from normal fields - two adjacent field separators?
- What are the field separators - you seem to use awk's default?
- What is the purpose of the piped second awk command, why don't you do that in the first?
- Why do you gsub the entire line in every field's loop?
- Are you aware that the shell concatenates ALL whitespace into one space unless quoted? So, "null strings" might be lost here...
Last edited by RudiC; 12-29-2016 at 06:02 AM.. Reason: typo
This User Gave Thanks to RudiC For This Post:
jim mcnamara
 

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LEARN ABOUT MOJAVE

glshadersource

GLSHADERSOURCE(3G)						    OpenGL 3.3							GLSHADERSOURCE(3G)

NAME

       glShaderSource - Replaces the source code in a shader object

C SPECIFICATION

       void glShaderSource(GLuint shader, GLsizei count, const GLchar **string, const GLint *length);

PARAMETERS

       shader
	   Specifies the handle of the shader object whose source code is to be replaced.

       count
	   Specifies the number of elements in the string and length arrays.

       string
	   Specifies an array of pointers to strings containing the source code to be loaded into the shader.

       length
	   Specifies an array of string lengths.

DESCRIPTION

       glShaderSource sets the source code in shader to the source code in the array of strings specified by string. Any source code previously
       stored in the shader object is completely replaced. The number of strings in the array is specified by count. If length is NULL, each
       string is assumed to be null terminated. If length is a value other than NULL, it points to an array containing a string length for each of
       the corresponding elements of string. Each element in the length array may contain the length of the corresponding string (the null
       character is not counted as part of the string length) or a value less than 0 to indicate that the string is null terminated. The source
       code strings are not scanned or parsed at this time; they are simply copied into the specified shader object.

NOTES

       OpenGL copies the shader source code strings when glShaderSource is called, so an application may free its copy of the source code strings
       immediately after the function returns.

ERRORS

       GL_INVALID_VALUE is generated if shader is not a value generated by OpenGL.

       GL_INVALID_OPERATION is generated if shader is not a shader object.

       GL_INVALID_VALUE is generated if count is less than 0.

ASSOCIATED GETS

       glGetShader() with arguments shader and GL_SHADER_SOURCE_LENGTH

       glGetShaderSource() with argument shader

       glIsShader()

SEE ALSO

       glCompileShader(), glCreateShader(), glDeleteShader()

COPYRIGHT

       Copyright (C) 2003-2005 3Dlabs Inc. Ltd. This material may be distributed subject to the terms and conditions set forth in the Open
       Publication License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

OpenGL 3.3							    03/08/2011							GLSHADERSOURCE(3G)
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