bakunin,
Thanks for the explanation. I know what array bounds checking means. That's why I posted this question. Have you tried turning on the -Warray-bounds on GCC and accessing an illegal array position to see if it works as you described? I was expecting the compiler will give me warning for accessing an array element beyond its declared size, but it didn't give me any warnings at all. The below program runs just fine on my Linux box. I gave the gcc version on my post above. If I assign 10000 to index, program give segmentation fault, but still compiles with no warnings. -Warray-bounds switch is on.
:confused: I have a question concerning gcc. IŽd like to install the gcc on my Mac OS X, but when I try to run the configure command I get the following message:
floriant% ./configure
./configure: read-only variable: PWD
Configuring for a powerpc-apple-darwin5.4 host.
*** This configuration... (2 Replies)
i write c++ code it run perfectely with g++ compiler but same code when i compile with
GCC compiler it gives linker error , followed these linker error
/tmp/ccfZtXOQ.o(.text+0x22): In function `main':
conf_system.cpp: undefined reference to `operator new(unsigned int)'... (5 Replies)
Hi,
we are converting from IBM-AIX(xl c/c++ compiler) to Linux(GCC complier).
As a part of this i need to change the CFLAGS.
The xl c/c++ complier CFLAGS is
CFLAGS := $(CDEBUG) $(PROJECT_INCLUDE_DIRS) $(COBJECT_MODE) -qcpluscmt -qmakedep -qcheck=all \
-qalign=bit_packed $(LINT_FLAGS)... (0 Replies)
Hi there
I've got a problem getting my mysql libraries to work.
every time I compile my source code it gives my a compiler error.
Cannot find a rule to create target /usr/include/mysql/mysql.h
AND
/usr/include/mysql/mysql.h: Permission denied
Is anyone fimiliar with this error, and can... (1 Reply)
where to download gcc compiler for ubuntu?
how to install?
how to build and run "c programs"?
screen shots if possible.....:b::D
tutorials too:cool: (5 Replies)
I am using open suse linux. I want to install gcc compiler in my machine. I ahve checked man gcc and man cc. But it's not there. Can someone help me (4 Replies)
Which gcc compiler release had the Arm 9 multicore support?Whether the compiler that used for the single Arm 9 core can be used for its multicore systems ?
If gcc not support,please tell me which are the compilers that are available for Arm 9 multicore systems (including commerical).Whether... (0 Replies)
hi,
can we install gcc compiler in unix based OS(sun solar,IBM AIX,HP,etc) and also
can we install sun cc compiler in AIX environment and vice versa.
and more ..is linux support cc compiler
regards
Ajay (3 Replies)
It might be a simple one but I have this question bothering me for sometime.
When we do a symbol search inside the library directory (i.e. /usr/lib/*) via tools like nm; it takes a while to give us the results. However, its very quick when gcc is invoked to compile a program with the very same... (11 Replies)
Discussion started by: Praveen_218
11 Replies
LEARN ABOUT DEBIAN
glviewportindexed
GLVIEWPORTINDEXED(3G) [FIXME: manual] GLVIEWPORTINDEXED(3G)NAME
glViewportIndexed - set a specified viewport
C SPECIFICATION
void glViewportIndexedf(GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h);
void glViewportIndexedfv(GLuint index, const GLfloat *v);
PARAMETERS
index
Specify the first viewport to set.
x, y
For glViewportIndexedf, specifies the lower left corner of the viewport rectangle, in pixels. The initial value is (0,0).
width, height
For glViewportIndexedf, specifies the width and height of the viewport. When a GL context is first attached to a window, width and
height are set to the dimensions of that window.
v
For glViewportIndexedfv, specifies the address of an array containing the viewport parameters.
DESCRIPTION
glViewportIndexedf and glViewportIndexedfv specify the parameters for a single viewport. index specifies the index of the viewport to
modify. index must be less than the value of GL_MAX_VIEWPORTS. For glViewportIndexedf, x, y, w, and h specify the left, bottom, width and
height of the viewport in pixels, respectively. For glViewportIndexedfv, v contains the address of an array of floating point values
specifying the left (x), bottom (y), width (w), and height (h) of each viewport, in that order. x and y give the location of the
viewport's lower left corner, and w and h give the width and height of the viewport, respectively. The viewport specifies the affine
transformation of x and y from normalized device coordinates to window coordinates. Let x nd y nd be normalized device coordinates. Then
the window coordinates x w y w are computed as follows:
x w = x nd + 1 width 2 + x
y w = y nd + 1 height 2 + y
The location of the viewport's bottom left corner, given by (x, y) is clamped to be within the implementaiton-dependent viewport bounds
range. The viewport bounds range [min, max] can be determined by calling glGet() with argument GL_VIEWPORT_BOUNDS_RANGE. Viewport width and
height are silently clamped to a range that depends on the implementation. To query this range, call glGet() with argument
GL_MAX_VIEWPORT_DIMS.
The precision with which the GL interprets the floating point viewport bounds is implementation-dependent and may be determined by querying
the impementation-defined constant GL_VIEWPORT_SUBPIXEL_BITS.
Calling glViewportIndexedfv is equivalent to calling glViewportArray() with first set to index, count set to 1 and v passsed directly.
glViewportIndexedf is equivalent to:
void glViewportIndexedf(GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h)
{
const float v[4] = { x, y, w, h };
glViewportArrayv(index, 1, v);
}
ERRORS
GL_INVALID_VALUE is generated if index is greater than or equal to the value of GL_MAX_VIEWPORTS.
GL_INVALID_VALUE is generated if either width or height is negative.
ASSOCIATED GETS
glGet() with argument GL_VIEWPORT
glGet() with argument GL_MAX_VIEWPORT_DIMS
glGet() with argument GL_VIEWPORT_BOUNDS_RANGE
glGet() with argument GL_VIEWPORT_SUBPIXEL_BITS
SEE ALSO
glDepthRange(), glViewport(), glViewportArray()
COPYRIGHT
Copyright (C) 2010 Khronos Group. 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/.
[FIXME: source] 05/30/2012 GLVIEWPORTINDEXED(3G)