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 - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30754-316d984fc8) Lines: 1132 1487 76.1 %
Date: 2026-03-19 09:26:57 Functions: 132 162 81.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66452930
bl_rotright 60850721
blockbalance 2849978732
blockdelete 1575620259
blockheight 11864287284
blockinsert 1728691317
cgetg_copy_avma 1062026247
cgetlist_avma 620
chk_gc_upto 0
clone_lock 371051545
clone_unlock 311757034
clone_unlock_deep 59318160
clonesearch 741833913
copy_bin 473000967
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 14032
err_init_msg 13897
err_recover 13069
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3082214796
fix_size 750288
gc_all_unsafe 27378801
gc_dec 6002705757
gc_slice_unsafe 330426001
gc_stack_update 1234030337
gclone 237434528
gclone_refc 0
gcloneref 37887
gcopy 4789475244
gcopy_av0 4034690553
gcopy_av0_canon 32
gcopy_avma 3383820460
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1890
getdebugvar 372814
getheap 84
getstack 7
gettime 3710
getwalltime 0
gp_context_restore 13144
gp_context_save 145967
gsizebyte 175
gsizeclone 237434439
gsizeclone_i 3476743823
gsizeword 2214450
gunclone 388533189
gunclone_deep 3278959699
icopy_avma_canon 12
init_universal_constants 1890
is_in_block 234078593
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 238281613
numerr_name 27109
obj_check 6033697
obj_checkbuild 1507423
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187740
obj_init 2533385
obj_insert 2661640
obj_insert_shallow 173572
obj_reinit 42
os_signal 20730
pari_add_defaults_module 1890
pari_add_module 1880
pari_close 1880
pari_close_blocks 367331
pari_close_export 1880
pari_close_opts 1880
pari_daemon 76
pari_err 56841
pari_err2GEN 56829
pari_err2str 21873
pari_err_display 13090
pari_err_last 87497
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 374628
pari_init_defaults 1890
pari_init_errcatch 375041
pari_init_export 1890
pari_init_functions 1890
pari_init_opts 1890
pari_init_timer 1890
pari_mainstack_alloc 375149
pari_mainstack_free 375139
pari_mainstack_malloc 375149
pari_mainstack_mextend 496648
pari_mainstack_mfree 375139
pari_mainstack_mreset 496648
pari_mainstack_resize 445
pari_mainstack_setsize 496648
pari_mainstack_use 374647
pari_sig_init 3770
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 376494
pari_thread_alloc 372814
pari_thread_close 373265
pari_thread_free 372814
pari_thread_get_global 372814
pari_thread_init 374614
pari_thread_set_global 372591
pari_thread_start 372776
pari_thread_valloc 0
pari_version 7
pari_warn 942
paristack_alloc 1890
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121499
parivstack_resize 0
pop_entree_block 390088
rndus 221580
setalldebug 1918
setdebug 127
setdebugvar 372590
shiftaddress 3096913552
shiftaddress_canon 24
taille0 4034918485
taille0_canon 32
timer 0
timer2 0
timer_aux 221580
timer_delay 111697
timer_get 1896
timer_printf 0
timer_start 358040
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134582594
walltimer_delay 107987
walltimer_get 0
walltimer_start 253285

Generated by: LCOV version 1.16