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// [config]
// expect_result: fail
// glsl_version: 1.10
//
// [end config]
/* FAIL - Names beginning with "gl_" are reserved.
*
* Section 3.7 of the GLSL 1.20 spec says, without qualification:
*
* "Identifiers starting with "gl_" are reserved for use by OpenGL, and
* may not be declared in a shader as either a variable or a function."
*
* The GLSL compiler in Nvidia's 195.36.15 driver allows this shader to
* compile. This is presumably on the basis the names of built-ins, gl_Vertex
* in this case, can be overridden.
*/
float gl_Vertex(float x)
{
return pow(x, 2.1718281828);
}
void main()
{
float exp = gl_Vertex(2.0);
gl_Position = vec4(0.0);
}
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