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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 1467 1530 95.9 % Date: 2025-09-17 09:23:49 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15275
_sqrtnr	22710
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35887
ZX_realroots_irred	48655
realroots	50627
ZX_sturm_irred	116775
ZX_sturm_i	123170
polsolve	166725
splitcauchy	166727
split_pols	166728
solve_exact_pol	231145
cleanroots	231749
isexactpol	239739
roots_com	239739
roots_aux	239767
checkvalidpol	267046
QX_complex_roots	296416
_gen_zero	326134
fix_roots1	398402
split_1	467912
conformal_mapping	467913
split_0_1	468231
split_0_2	468233
logradius	493965
update_radius	493967
split_2	493968
optimize_split	493969
parameters	493969
split_fromU	493969
split_0	494290
refine_F	502349
dft	502359
all_roots	536111
clean_roots	536155
fix_roots	537157
a_posteriori_errors	537161
mygprec_special	537163
logpre_modulus	606753
logmodulus	606754
abs_update_r	778668
ind_maxlog2	902640
isexactscalar	931700
isreal	961881
initdft	996324
dual_modulus	1012432
usp	1125990
ZX_sturmpart	1128152
check_ab	1178778
tocomplex	1213929
isvalidcoeff	1230095
ZX_Uspensky	1313798
conformal_basecase	1403858
conformal_pol	1403977
fujiwara_bound_real	1406833
split_complete	1525729
homothetie	1610067
append_clone	1614001
logmin_modulus	1614827
root_error	1912398
mygprecrc_special	2178525
ZX_rescale2prim	2233660
cmp_complex_appr	2238537
fujiwara_bound	2271693
checkbound	2354688
refine_H	2460346
scalepol	4289283
mygprec_absolute	4339486
_mp_mul	4374535
logmax_modulus	4450894
splitpoleval	5236010
bkeval_single_power	5236086
newton_polygon	5507179
X2XP1	5990129
_mp_sqr	6298263
dblexp	6549002
quicktofp	6978998
RgX_gtofp_bit	7031462
abs_update	8005005
mydbllogr	9546091
homothetie2n	9957704
_gen_nored	11200724
eval_rel_pol	13138070
fft	14159764
_gen_one	14474194
ZX_to_ZiX	16456223
pol_to_gaussint	17588903
_mp_add	24663360
_mp_cmul	34764066
myshiftrc	35507734
homothetie_gauss	36498802
lower_bound	40957065
findpower	40957170
graeffe	49508322
mydbllog2r	56770373
mygprec	63754906
ZiX_sqr	99037530
myshiftic	135835514
mygprecrc	215181246
mydbllog2i	226427316
dbllog2	302694306

Generated by: LCOV version 1.16