Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - es.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30634-7c77b4d1a9) Lines: 2058 2801 73.5 %
Date: 2026-01-25 09:23:13 Functions: 254 310 81.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GENtoGENstr 742
GENtoGENstr_nospace 0
GENtoTeXstr 0
GENtostr 4
GENtostr_fun 746
GENtostr_raw 3710
GENtostr_unquoted 26018
RgV_to_str 11202
Str 11064
Str_fun 11190
VpowE 233167
_cfwrite 8
_expand_env 5819
_flush_log 255669
_fputs 309983
_fwrite 104
_initout 0
_lfwrite 96
_path_expand 5819
_putc_log 10601777
_puts_log 309983
absrtostr 34671
absrtostr_width_frac 142743
blancs 0
brute 0
bruti 1167323
bruti_intern 983065
bruti_sign 1395089
check_compress 36
check_gp_file 320
check_magic 12
check_secure 40
cxq_init 11032
dbg 0
dbgGEN 0
dbg_addr 0
dbg_pari_heap 0
dbg_word 0
decode_color 12
delete_buffer 11268
dft_help 20
do_append 0
dopr_arg_vector 1463
dosign 287141
env_ok 0
err_flush 0
err_printf 347
error0 14
ex10 177379
externstr 4
file_getline 997804
file_input 997728
file_is_binary 16
filestate_close 380881
filestate_restore 13124
filestate_save 144950
filtre0 1006560
fix_buffer 7399
fmtnum 145987
fmtreal 143128
fmtstr 159114
forpath_init 20
forpath_next 20
fputGEN_pariout 0
gen_output 60789
gen_output_fun 60789
get_file 0
get_free_gp_file 56
get_fun 204820
get_lines 8
get_sigd 143044
get_texvar 105
get_var 97871
gp_dlopen 20
gp_embedded 0
gp_embedded_init 0
gp_fileclose 56
gp_fileextern 4
gp_fileflush 44
gp_fileflush0 52
gp_fileopen 52
gp_fileread 64
gp_filereadstr 56
gp_filewrite 48
gp_filewrite1 52
gp_filter 11039
gp_getenv 8
gp_read_file 19
gp_read_from_input 0
gp_read_str_history 0
gp_read_str_multiline 0
gp_read_stream 8887
gp_read_stream_buf 804589
gp_readvec_file 4
gp_readvec_stream 305
gpextern 4
gpinstall 20
gpsystem 28
gpwritebin 12
gsprintf 1603
gtolong_OK 77
gvsprintf 1993
history 60843
in_help 2393
init_filtre 806553
init_linewrap 62551
init_unique 0
initout 1900
input_loop 949235
install0 20
is_dir_stat 55
is_long_ok 24
is_magic_ok 79
is_sizeoflong_ok 12
isdenom 52969
isfactor 285653
isnull 3655134
isnull_for_pol 1748135
isone 1612363
itostr 6804
itostr_sign 756405
kill_file_stack 736874
killallfiles 49
log10_2 12
mat0n 392
matbrute 0
matbruti 60800
monome 218159
new_buffer 11268
new_gp_file 56
new_line 7920
newfile 40460
normalErrC 622591
normalErrF 40723
normalErrS 309872
normalOutC 9979186
normalOutF 214946
normalOutS 111
numdig 756405
ok_pipe 0
os_getenv 26682
out_print0 112410
out_print1 20307
out_printf 12476
out_putc 728885
out_puts 429844
out_term_color 67942
out_vprintf 14347
outmat 0
outpad 288961
output 0
paren 15547
pari_add_hist 107100
pari_ask_confirm 0
pari_close_files 1890
pari_close_homedir 1890
pari_dir_exists 0
pari_fclose 40383
pari_file_exists 0
pari_flush 201102
pari_fopen 0
pari_fopen_or_fail 0
pari_fopengz 40404
pari_fprintf 0
pari_fread_chars 112204
pari_fread_longs 72
pari_get_hist 60793
pari_get_histrtime 0
pari_get_histtime 0
pari_get_homedir 3792
pari_get_infile 40361
pari_histtime 25
pari_init_files 373174
pari_init_homedir 1900
pari_is_dir 55
pari_is_file 94
pari_is_rwx 0
pari_kill_file 40460
pari_last_was_newline 120951
pari_nb_hist 0
pari_open_file 0
pari_printf 757
pari_putc 104679
pari_puts 62269
pari_safefopen 0
pari_set_last_newline 149271
pari_sprint0 14
pari_sprintf 19111
pari_stdin_isatty 1900
pari_thread_close_files 371694
pari_tmp_dir 0
pari_unique_dir 0
pari_unique_filename 0
pari_unique_filename_suffix 0
pari_unlink 0
pari_vfprintf 0
pari_vprintf 757
pari_vsprintf 78066
path_expand 5819
path_is_absolute 20
popinfile 373303
print 111388
print0_file 94
print1 20279
print_0_or_pm1 1395605
print_coef 0
print_context 5410
print_entree 0
print_errcontext 13385
print_functions_hash 0
print_gcoef 237606
print_precontext 4613
print_prefixed_text 18788
printf0 742
printfl_0 111437
printfl_1 20279
printp 7
prints 0
printsep 973
printsep1 21
printtex 42
putc_lw 9901079
puts_lw 198052
quote_string 14951
rdGEN 16
rd_long 56
rdstr 8
readbin 12
readobj 28
readstr 4
real0tostr 1651
real0tostr_width_frac 661
resetout 1900
runaway_close 2207
set_last_newline 1156048
shift_add 143485
sm_dopr 79529
stack_GENtostr_fun 72058
stack_GENtostr_fun_unquoted 26018
stack_sprintf 42615
str_absint 574499
str_addr 0
str_alloc 615659
str_alloc0 2115
str_arg_vprintf 227623
str_init 300552
str_long 182047
str_print0 144027
str_printf 148096
str_putc 15384647
str_puts 2492507
str_putscut 159114
str_ulong 182047
strexpand 12
strftime_expand 4
string_gets 0
strip_last_nl 0
strlen_real 173499
strprintf 721
strtex 126
switchin 27
switchin_last 7
switchout 0
switchout_get_FILE 94
term_color 709
term_get_color 82700
term_height 7
term_height_intern 7
term_width 22847
term_width_intern 22847
texVpowE 210
texe 0
texexpo 210
texi 319
texi_sign 516
texnome 203
texparen 0
times_monome 177443
times_texnome 140
tmp_restore 13576
try_dlopen 0
try_name 20
try_open 20
try_pipe 8
uordinal 0
utodec 1141762
v_get_arg 1876
vsigne 0
warning0 7
wr 94
wrGEN 16
wr_check 122
wr_dec 160345
wr_lead_monome 98718
wr_lead_texnome 119
wr_long 80
wr_monome 174041
wr_texnome 105
wr_vecsmall 8082
wrexpo 233167
write0 82
write1 8
writeGEN 8
write_magic 12
writebin 12
writenamedGEN 8
writetex 4
wrstr 8
zeros 15411
zerotostr 126

Generated by: LCOV version 1.16