Linux Manuals session 3

strverscmp – compare two version strings Synopsis #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <string.h> int strverscmp(const char *s1, const char *s2); Description Often one has files jan1, jan2, …, jan9, jan10, … and it feels wrong when ls(1) orders them jan1, jan10, …, jan2, …, jan9. In order to rectify this, GNU introduced the…

strttp.f – Synopsis Functions/Subroutines subroutine strttp (UPLO, N, A, LDA, AP, INFO) STRTTP copies a triangular matrix from the standard full format (TR) to the standard packed format (TP). Function/Subroutine Documentation subroutine strttp (characterUPLO, integerN, real, dimension( lda, * )A, integerLDA, real, dimension( * )AP, integerINFO) STRTTP copies a triangular matrix from the standard full…

strttf.f – Synopsis Functions/Subroutines subroutine strttf (TRANSR, UPLO, N, A, LDA, ARF, INFO) STRTTF copies a triangular matrix from the standard full format (TR) to the rectangular full packed format (TF). Function/Subroutine Documentation subroutine strttf (characterTRANSR, characterUPLO, integerN, real, dimension( 0: lda-1, 0: * )A, integerLDA, real, dimension( 0: * )ARF, integerINFO) STRTTF copies a…

strtrs.f – Synopsis Functions/Subroutines subroutine strtrs (UPLO, TRANS, DIAG, N, NRHS, A, LDA, B, LDB, INFO) STRTRS Function/Subroutine Documentation subroutine strtrs (characterUPLO, characterTRANS, characterDIAG, integerN, integerNRHS, real, dimension( lda, * )A, integerLDA, real, dimension( ldb, * )B, integerLDB, integerINFO) STRTRS Purpose: STRTRS solves a triangular system of the form A * X = B or…

strtri.f – Synopsis Functions/Subroutines subroutine strtri (UPLO, DIAG, N, A, LDA, INFO) STRTRI Function/Subroutine Documentation subroutine strtri (characterUPLO, characterDIAG, integerN, real, dimension( lda, * )A, integerLDA, integerINFO) STRTRI Purpose: STRTRI computes the inverse of a real upper or lower triangular matrix A. This is the Level 3 BLAS version of the algorithm.   Parameters: UPLO…

strtransform – convert a string into its mapped-to value Synopsis #include <your-opts.h> cc[…] – o outfile infile.c – lopts[…] void strtransform(char *dest, char const *src); Description Each character in the input string is mapped and the mapped-to character is put into the output. This function name is mapped to option_strtransform so as to not conflict…

strtoul, strtoull, strtouq – convert a string to an unsigned long integer Synopsis #include <stdlib.h> unsigned long strtoul(const char *nptr, char **endptr, int base); unsigned long long strtoull(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoull(): _ISOC99_SOURCE ||     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtoul() function converts the initial…

strtoimax, strtoumax – convert string to integer Synopsis #include <inttypes.h> intmax_t strtoimax(const char *nptr, char **endptr, int base); uintmax_t strtoumax(const char *nptr, char **endptr, int base); Description These functions are just like strtol(3) and strtoul(3), except that they return a value of type intmax_t and uintmax_t, respectively. Return Value On success, the converted value is…

strtoul, strtoull, strtouq – convert a string to an unsigned long integer Synopsis #include <stdlib.h> unsigned long strtoul(const char *nptr, char **endptr, int base); unsigned long long strtoull(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoull(): _ISOC99_SOURCE ||     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtoul() function converts the initial…

strtoul, strtoull, strtouq – convert a string to an unsigned long integer Synopsis #include <stdlib.h> unsigned long strtoul(const char *nptr, char **endptr, int base); unsigned long long strtoull(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoull(): _ISOC99_SOURCE ||     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtoul() function converts the initial…

strtol, strtoll, strtoq – convert a string to a long integer Synopsis #include <stdlib.h> long strtol(const char *nptr, char **endptr, int base); long long strtoll(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoll(): _ISOC99_SOURCE     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtol() function converts the initial part of the string…

strtonum – reliably convert string value to an integer Library Lb libbsd Synopsis In limits.h In bsd/stdlib.h Ft long long Fo strtonum Fa const char *nptr Fa long long minval Fa long long maxval Fa const char **errstr Fc Description The Fn strtonum function converts the string in Fa nptr to a Vt long long…

strtol, strtoll, strtoq – convert a string to a long integer Synopsis #include <stdlib.h> long strtol(const char *nptr, char **endptr, int base); long long strtoll(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoll(): _ISOC99_SOURCE     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtol() function converts the initial part of the string…

strtod, strtof, strtold – convert ASCII string to floating-point number Synopsis #include <stdlib.h> double strtod(const char *nptr, char **endptr); float strtof(const char *nptr, char **endptr); long double strtold(const char *nptr, char **endptr); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtof(), strtold(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L Description The strtod(), strtof(), and strtold() functions convert the initial…

strtol, strtoll, strtoq – convert a string to a long integer Synopsis #include <stdlib.h> long strtol(const char *nptr, char **endptr, int base); long long strtoll(const char *nptr, char **endptr, int base); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtoll(): _ISOC99_SOURCE     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Description The strtol() function converts the initial part of the string…

strtok, strtok_r – extract tokens from strings Synopsis #include <string.h> char *strtok(char *str, const char *delim); char *strtok_r(char *str, const char *delim, char **saveptr); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtok_r(): _POSIX_C_SOURCE     || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE Description The strtok() function breaks a string into a sequence of zero or more nonempty tokens. On the…

strtok, strtok_r – extract tokens from strings Synopsis #include <string.h> char *strtok(char *str, const char *delim); char *strtok_r(char *str, const char *delim, char **saveptr); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtok_r(): _POSIX_C_SOURCE     || /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE Description The strtok() function breaks a string into a sequence of zero or more nonempty tokens. On the…

strtoimax, strtoumax – convert string to integer Synopsis #include <inttypes.h> intmax_t strtoimax(const char *nptr, char **endptr, int base); uintmax_t strtoumax(const char *nptr, char **endptr, int base); Description These functions are just like strtol(3) and strtoul(3), except that they return a value of type intmax_t and uintmax_t, respectively. Return Value On success, the converted value is…

strtod, strtof, strtold – convert ASCII string to floating-point number Synopsis #include <stdlib.h> double strtod(const char *nptr, char **endptr); float strtof(const char *nptr, char **endptr); long double strtold(const char *nptr, char **endptr); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtof(), strtold(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L Description The strtod(), strtof(), and strtold() functions convert the initial…

strtod, strtof, strtold – convert ASCII string to floating-point number Synopsis #include <stdlib.h> double strtod(const char *nptr, char **endptr); float strtof(const char *nptr, char **endptr); long double strtold(const char *nptr, char **endptr); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strtof(), strtold(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L Description The strtod(), strtof(), and strtold() functions convert the initial…