You can get a free PDF version of this 1156 page document at gnu.org. This document is printed in grayscale. The C language provides no built-in facilities for

The GNU C Library, described in this document, defines all of the library functions that are specified by the ISO C standard, as well as additional features spe

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Provides an introduction to the GNU C and C++ compilers, gcc and g++. This manual includes: compiling C and C++ programs using header files and libraries, warni